Frequently Asked HVAC & Electrical Questions

Welcome to the FAQ page of Liam Services, your trusted HVAC and electrical experts in Hockessin, DE. As the leading professionals in the field, we are committed to providing expert guidance and solutions to address all your HVAC and electrical needs. Whether you have questions about air conditioning, heating systems, electrical installations, or general maintenance, you’ve come to the right place.

Our team of highly skilled HVAC technicians and electricians possesses extensive knowledge and experience in the industry. We understand that navigating the complexities of HVAC and electrical systems can be daunting, and that’s why we’ve compiled this comprehensive FAQ page to address some of the most common inquiries we receive. If you don’t find what you’re looking for, don’t hesitate to reach out to our knowledgeable team for personalized assistance.

To change the filter in your home air conditioner, follow these steps:

  • Locate the Filter: The filter is typically located near the air handler or return air vent. It may be behind a grille or in a slot on the side or bottom of the unit.
  • Turn Off the System: Before removing the filter, switch off the air conditioner at the thermostat to prevent the system from running during the filter replacement.
  • Remove the Old Filter: Slide out the old filter from its housing. Pay attention to the airflow direction indicated on the filter frame to ensure proper installation of the new filter.
  • Clean or Replace: If the filter is washable, follow the manufacturer’s instructions to clean it thoroughly. If it is disposable, discard the old filter.
  • Install the New Filter: Insert the new filter into the filter slot, ensuring it is aligned with the airflow direction marked on the filter frame.
  • Turn On the System: After installing the new filter, switch on the air conditioner and verify that it is running properly.

Remember to check and replace the filter regularly, typically every one to three months, or as recommended by the manufacturer, to maintain efficient operation and good indoor air quality in your home.

When your AC unit is not blowing cold air, there are a few steps you can take to troubleshoot the issue:

  • Check the Thermostat: Ensure that the thermostat is set to the desired temperature and cooling mode. If it’s set correctly but the air is still not cold, move on to the next steps.
  • Inspect the Air Filter: A dirty or clogged air filter can restrict airflow and reduce cooling efficiency. Check the filter and replace it if it’s dirty.
  • Examine the Outdoor Unit: Inspect the outdoor unit for any obstructions, such as debris or vegetation, that might be blocking airflow. Clear away any obstructions and ensure that the unit has proper clearance.
  • Check the Air Vents: Ensure that all air vents and registers inside your home are open and unobstructed. Blocked vents can restrict airflow and impact cooling performance.
  • Check the Condenser Coils: Dirty or clogged condenser coils can hinder heat transfer and affect cooling. Clean the coils if they appear dirty or contact a professional for professional coil cleaning.

If these troubleshooting steps do not resolve the issue, it is recommended to contact a professional HVAC technician to diagnose and repair the problem.

Yes, air purifiers can help with mold by capturing and removing mold spores from the air. Mold spores are tiny airborne particles released by mold colonies, and they can trigger allergies and respiratory problems when inhaled.

Air purifiers equipped with High-Efficiency Particulate Air (HEPA) filters are particularly effective at removing mold spores. HEPA filters are designed to capture particles as small as 0.3 microns, which includes most mold spores. When air passes through the purifier, the HEPA filter traps and retains the mold spores, preventing them from circulating in the indoor air.

However, it’s important to note that air purifiers alone may not completely eliminate mold growth or address the underlying cause of mold. If you have a significant mold problem in your home, it is crucial to identify and remediate the source of moisture that is promoting mold growth. This may involve professional mold remediation services and addressing any water leaks or excessive humidity.

In summary, while air purifiers can help reduce airborne mold spores, they should be used as part of a comprehensive mold prevention and remediation strategy.

No, not all HVAC units have an air handler. The presence of an air handler in an HVAC system depends on the type of system being used. An air handler is a key component of systems that use forced air for heating, ventilation, and air conditioning.

In central HVAC systems, which are common in residential and commercial buildings, an air handler is typically included. It is responsible for circulating and distributing conditioned air throughout the building. The air handler contains the blower fan, evaporator coil, and filter.

However, there are other types of HVAC systems that do not use air handlers. For example, ductless mini-split systems consist of an outdoor condenser unit and one or more indoor air handling units, eliminating the need for a centralized air handler. Similarly, window units and portable air conditioners do not have a separate air handler.

The presence of an air handler depends on the specific design and configuration of the HVAC system, and different systems may utilize different components for air circulation and conditioning.

Air sealing is the process of closing gaps, cracks, and leaks in a building’s envelope to prevent the uncontrolled movement of air between the interior and exterior. It is an important step in improving energy efficiency, indoor comfort, and reducing utility costs.

The process of air sealing typically involves the following steps:

  • Inspection: A thorough inspection is conducted to identify areas of air leakage, such as around windows, doors, electrical outlets, vents, and pipes.
  • Caulking and Weatherstripping: Gaps and cracks in building materials are sealed using caulk, while weatherstripping is applied to create a tight seal around movable components like doors and windows.
  • Air Barrier Installation: Additional measures, such as installing vapor barriers, air barriers, or membranes, may be taken to create a continuous barrier against air leakage.
  • Duct Sealing: Ductwork is inspected for leaks and sealed using appropriate materials to prevent conditioned air from escaping or unconditioned air from entering.
  • Testing and Verification: After air sealing, a blower door test may be performed to measure the effectiveness of the sealing and identify any remaining leaks.

Air sealing helps to enhance indoor comfort, reduce energy waste, and improve the overall performance of the building’s heating and cooling systems. Consulting with professionals in the field, such as energy auditors or insulation contractors, can ensure effective air sealing practices are implemented for maximum benefit.

The cost of installing a dehumidifier can vary depending on several factors, including the type of dehumidifier, the size of the space, and the complexity of the installation. On average, the cost of installing a dehumidifier ranges from $1,000 to $3,000.

The price of the dehumidifier unit itself can vary based on its capacity, features, and brand. Basic portable or small-capacity dehumidifiers are more affordable, while larger or whole-house dehumidifiers tend to be more expensive.

In addition to the cost of the dehumidifier, you may also need to consider installation labor charges. If the installation requires complex ductwork or electrical modifications, it can increase the overall installation cost.

It is recommended to consult with a professional HVAC contractor or dehumidifier installer to assess your specific needs and provide an accurate cost estimate. They will consider factors such as the size of the area, humidity levels, and any additional installation requirements to determine the most suitable dehumidifier and provide an estimate for the installation cost.

Yes, ductless air conditioning systems, also known as ductless mini-split systems, are generally considered to be more energy-efficient and cost-effective to run compared to traditional central air conditioning systems with ductwork.

Ductless AC systems operate on a “zoned” cooling principle, meaning they provide individualized climate control to specific areas or rooms in a building. This targeted cooling allows for greater energy efficiency as you can cool only the areas that are occupied, rather than cooling the entire home or building. It eliminates the energy losses that occur in ductwork, which can account for a significant portion of energy waste in central AC systems.

Furthermore, ductless AC systems use inverter technology that allows them to adjust their cooling capacity based on the current cooling demands, providing precise and efficient cooling without frequent cycling on and off.

While the upfront cost of installing a ductless AC system may be higher than that of a traditional central AC system, the long-term energy savings and reduced operating costs often offset the initial investment. It is recommended to consult with an HVAC professional to evaluate your specific cooling needs and determine the most cost-effective option for your situation.

When it comes to choosing the best ductwork for ventilation, several factors should be considered, including efficiency, durability, noise reduction, and cost. Here are a few commonly used types of ductwork:

  • Sheet Metal Ducts: Sheet metal ducts, typically made of galvanized steel, are durable and long-lasting. They have smooth interiors, which minimizes airflow resistance and improves efficiency. However, they can be more expensive to install and require skilled labor.
  • Flexible Ducts: Flexible ducts are made of a combination of plastic and metal wire coils. They are flexible and easy to install, making them suitable for tight spaces and retrofitting. However, they may have higher airflow resistance and are more prone to damage if not installed properly.
  • Fiberglass Ducts: Fiberglass ducts are lightweight and have good thermal insulation properties. They help to reduce energy loss and condensation. However, they can be more expensive and require careful installation to prevent fiberglass particles from entering the airflow.
  • Duct Board: Duct board consists of insulation material faced with a fiberglass mat. It provides both insulation and structural support, making it a cost-effective option. However, it may require professional installation and careful sealing to prevent air leakage.

The best choice of ductwork for ventilation depends on the specific requirements of your HVAC system, building design, and budget. Consulting with an HVAC professional can help you determine the most suitable ductwork for your needs.

To turn on emergency heat in your HVAC system, follow these general steps:

  • Locate the thermostat: Find your thermostat and ensure it is set to the “Heat” mode.
  • Access the emergency heat option: Look for a switch or setting on your thermostat labeled “Emergency Heat” or “Auxiliary Heat.” This switch is typically located on the thermostat itself or in a submenu if your thermostat has a digital interface.
  • Activate emergency heat: Flip the switch or select the “Emergency Heat” option on your thermostat. This action will bypass the heat pump and activate the auxiliary heat source, usually electric resistance heat strips.
  • Adjust the temperature: Set the desired temperature on your thermostat to initiate the emergency heat operation. The auxiliary heat source will provide warmth until the desired temperature is reached.
  • Note: Emergency heat should be used sparingly and primarily in situations where the primary heat source (such as the heat pump) is not functioning properly. It is not recommended to use emergency heat as a regular heating option, as it can be less energy-efficient and costlier to operate compared to the primary heat source.

If you are unsure about the specific steps for activating emergency heat on your HVAC system, it is recommended to consult your system’s user manual or contact a professional HVAC technician for guidance.

During an energy audit, a comprehensive assessment of a building’s energy usage and efficiency is conducted to identify areas for improvement. Here are the key steps typically involved in an energy audit:

  • Initial assessment: The auditor collects information about the building, including its size, occupancy patterns, and energy consumption history.
  • On-site inspection: The auditor examines various components of the building, such as insulation, windows, HVAC systems, lighting, appliances, and water heaters. They may also conduct a blower door test to assess air leakage.
  • Data collection: Energy usage data is collected from utility bills and meter readings to analyze patterns and trends.
  • Analysis: The auditor analyzes the collected data and inspects the building’s systems and components to identify areas of inefficiency and potential energy-saving opportunities.
  • Recommendations: Based on the findings, the auditor provides recommendations for energy-saving measures, including improvements to insulation, weather sealing, HVAC system upgrades, lighting retrofits, and behavioral changes.
  • Report: A detailed report is prepared, summarizing the findings, recommendations, and estimated savings potential. It may include cost estimates, payback periods, and information about available incentives or rebates.

By conducting an energy audit, building owners can gain insights into their energy consumption patterns, identify areas for improvement, and make informed decisions about energy-saving upgrades that can enhance efficiency, reduce energy waste, and lower utility costs.

The most energy-efficient furnace options available today are high-efficiency condensing furnaces. These furnaces utilize advanced technology to maximize energy efficiency and reduce energy waste. Here are some key features of high-efficiency condensing furnaces:

  • Condensing technology: These furnaces have a secondary heat exchanger that extracts additional heat from the combustion gasses. This allows them to achieve higher efficiency by capturing and utilizing heat that would otherwise be wasted.
  • Two-stage or modulating burners: High-efficiency furnaces often incorporate two-stage or modulating burners, which can adjust the heating output based on the heating demands. This provides more precise and efficient heating, reducing energy consumption and improving comfort.
  • AFUE rating: The Annual Fuel Utilization Efficiency (AFUE) rating measures the furnace’s efficiency. High-efficiency condensing furnaces typically have AFUE ratings of 90% or higher, meaning they convert 90% or more of the fuel into usable heat.
  • Energy-saving features: Additional features like variable-speed blowers and smart thermostat compatibility can further enhance energy efficiency by optimizing airflow and adjusting heating cycles based on occupancy and temperature settings.

It’s important to note that the energy efficiency of a furnace also depends on proper sizing, installation, and maintenance. Consulting with a professional HVAC technician can help you determine the most energy-efficient furnace option suitable for your home and ensure its optimal performance.

The main downside of a heat pump is its reduced efficiency in extremely cold temperatures. Heat pumps work by transferring heat from the outside air to heat your home during winter. However, as the outdoor temperature drops, the heat pump’s ability to extract heat diminishes, and supplementary heating may be required. In such cases, the heat pump may activate its auxiliary heat source, such as electric resistance coils, which are less efficient and more expensive to operate.

Another potential downside of heat pumps is their initial cost, as they tend to have a higher upfront investment compared to traditional heating systems. However, the long-term energy savings can often offset this initial expense.

Furthermore, heat pumps require regular maintenance to ensure optimal performance. They rely on refrigerant cycles and complex components that may require professional servicing.

Lastly, in regions with limited access to electricity or areas with frequent power outages, heat pumps may not be the most reliable option as they depend on electricity to operate. In such cases, a backup heating system may be necessary.

Installing a whole house humidifier is a complex task that typically requires professional expertise. While some homeowners may have advanced DIY skills, it is generally recommended to hire a qualified HVAC technician for the installation. Here are a few reasons why professional installation is advised:

  • Sizing and compatibility: Properly sizing and selecting a humidifier that is compatible with your HVAC system and home’s specific needs is crucial. HVAC technicians have the knowledge and experience to determine the appropriate size and type of humidifier for your home.
  • Electrical and plumbing considerations: Whole house humidifiers often require electrical and plumbing connections. Professional technicians are trained to handle these installations safely and in compliance with local building codes.
  • Integration with HVAC system: Integrating a whole house humidifier with your HVAC system requires precise configuration and wiring. HVAC professionals can ensure proper integration and synchronization with your existing HVAC equipment.
  • Warranty and insurance: Professional installation ensures that the humidifier is installed correctly, which may help maintain manufacturer warranties. Additionally, licensed HVAC technicians typically carry insurance, providing liability coverage in case of any installation-related issues.

To ensure a proper and efficient installation, it is advisable to consult with an HVAC professional who can assess your home’s needs, recommend the appropriate humidifier, and ensure a safe and reliable installation.

A comprehensive HVAC maintenance contract should include several key components to ensure the optimal performance and longevity of your heating, ventilation, and air conditioning system. Here are some essential elements that should be included:

  • Regular system inspections: The contract should outline scheduled inspections to assess the overall condition of your HVAC system, including checking for any potential issues or signs of wear and tear.
  • Cleaning and lubrication: The contract should specify the cleaning and lubrication of key components such as coils, fans, motors, and belts. This helps maintain efficient operation and prevents excessive wear.
  • Filter replacement: Regular filter replacement is crucial for good indoor air quality and system efficiency. The contract should include the provision for filter replacement at appropriate intervals.
  • System testing and calibration: The contract should outline procedures for testing and calibrating the system’s controls, sensors, and thermostats to ensure accurate operation and energy efficiency.
  • Priority service and discounts: A maintenance contract often provides priority service in case of system failures or emergencies, along with discounts on repair services and replacement parts.
  • Documentation and reporting: The contract should specify that the technician will provide detailed reports after each service visit, documenting the work performed, any identified issues, and recommendations for repairs or upgrades.

By having a well-defined HVAC maintenance contract in place, you can ensure regular upkeep of your system, identify potential problems early on, and maximize its performance and lifespan. It is recommended to review the contract terms carefully and choose a reputable HVAC company that offers reliable and comprehensive maintenance services.

HVAC memberships, also known as maintenance plans or service agreements, can be worth it for many homeowners. These memberships typically offer annual or biannual maintenance visits for your HVAC system, along with additional benefits. Here are some reasons why HVAC memberships can be beneficial:

  • Regular maintenance: HVAC memberships ensure that your system receives regular maintenance, which can help prevent breakdowns, improve efficiency, and extend the lifespan of your equipment.
  • Priority service: Most HVAC memberships offer priority service, meaning you receive faster response times and priority scheduling for any repairs or emergencies.
  • Cost savings: Some memberships include discounts on repairs, replacement parts, or new equipment purchases, which can help save money in the long run.
  • Peace of mind: Knowing that your HVAC system is being properly maintained and serviced by professionals can give you peace of mind and reduce the stress associated with unexpected breakdowns.
  • Expert advice: HVAC technicians can provide valuable advice on energy-saving measures, system upgrades, and equipment options, helping you make informed decisions about your HVAC system.

However, the value of an HVAC membership ultimately depends on your specific needs and the offerings of the membership plan. It’s important to carefully review the terms and benefits of the membership before signing up to ensure it aligns with your requirements and provides good value for the cost.

The choice between HEPA (High Efficiency Particulate Air) filters and UV (Ultraviolet) light systems depends on the specific air quality concerns you have and the goals you want to achieve. Here’s a comparison of both:

  • HEPA Filters: HEPA filters are highly effective at capturing and trapping small particles, including dust, pollen, pet dander, and some airborne pathogens. They provide mechanical filtration by forcing air through a dense filter material. HEPA filters can help improve overall indoor air quality and are particularly beneficial for individuals with allergies or respiratory conditions. However, they do not eliminate or neutralize microorganisms like bacteria or viruses.
  • UV Light Systems: UV light systems use ultraviolet radiation to kill or inactivate microorganisms such as bacteria, viruses, and mold spores that pass by the light source. They are primarily designed to target biological contaminants. UV light systems can be effective in reducing the presence of these pathogens, but they are less effective against non-living particles like dust or pollen.

HEPA filters are effective for mechanical filtration of particles, while UV light systems are effective for controlling microorganisms. For comprehensive air purification, a combination of both technologies may be beneficial, especially in environments where both particulate matter and biological contaminants are of concern. Consulting with an HVAC professional can help determine the most appropriate solution for your specific needs.



    Tim from LIAM services really is the epitome of the type of professional you would want to come and service your hvac needs. I have used another company in the past and decided to do some more research before I decided on LIAM. I am so glad that I did and highly recommend them for anyone’s service needs. Tim was professional, knowledgeable, and above all friendly and there was no feeling of being misled or deceived which is truly admirable when it comes to trusting a company with good individuals like Tim representing them. Will definitely use them for all future home service needs.
    Our unit went on the hottest week in August. Liam's was recommended to us through friends. We called and that day two different people were sent out to figure out what was wrong. We figured out that our unit needed to be replaced. At that point Liam's brought us window units that night until they could get us on their schedule. It only took 7 days for them to send out a great crew to replace the system. They were very professional and walk me though our new system and how everything works. Thank you for all of your help and we look forward to working with this company in the future.
    Highly recommend Liam Services! Their customer service is second to none! From the phone greeting, all the way to the technician on the day of service, was outstanding! Tim N. was on time, professional, and took the time to explain everything. Liam Services, you have a customer for life!Update: Had my annual service completed by Justin and AGAIN, had top notch service all around! Simply the best!
    Hired a handyman to install a ceiling fan. He ended up blowing the light and refrigerator outlets. I called LIAM Services on Monday and Brian showed up ON TIME, on Tuesday. Brian is professional, knowledgeable and super nice. He had everything running smoothly in 10 minutes!! Needless to say, I’ve booked Brian to repair all of our electrical issues and will be setting up for HVAC consultation. Call LIAM Services if you want it done right!!
    Brian did a top notch job installing our EV charger and dedicated outdoor generator outlet to run the house from my generator in case of an electrical service interruption. Timely and neat!
    The expert, Andrew came earlier than expected and was very friendly. He kept it real with us and what our situation was, as well as was patient with my grandmother who had many questions and concerns. He went above and beyond which was greatly appreciated! Would definitely recommend and call again in future if we run into any more issues.
    I have now worked with LIAM services twice. Once for duct cleaning and second AC repairs, Both times i have worked with Tim and he makes it easier to work with. Always brings along positing energy that cannot be denied. Tim's knowledge of the job and his equipment gives you confidence that he knows what he is doing. He takes time to explain and educate on what is going on which gives me confidence in his work. I would recommend his services to anyone in need of HVAC services
    Tim is always there when we needed him. He responds right away and does great work. Explains everything, gives options and suggestions without being pushy like many other services. Definitely recommend,
    Tim was very knowledgeable and took the time to explain everything that needed to be done to get the airflow we needed in our home 10/10 will recommend.
    Superb customer service
    LIAM Services is the best example of excellent customer service & professionalism. The lady who answers the phone was very professional & communicated very well. My electrician Loy was very informative, friendly & made sure the job was done right. Loy explained to me what the problem was & made sure it was corrected. Loy was the best ! The entire service from start to finish was phenomenal. I will not hesitate to call LIAM services for any HVAC & Electrical needs they are awesome !
    Carson Simpson is the most professional amazing person what a blessing he is to Liam Services they are fantastic!
    Got a charger installed by Justin. He arrived on time and finished up early. Very professional and worth the time! Would recommend
    Wonderful service, very professional and great experience working with Liam Services. Carson was very knowledgeable and took the time to explain everything to me so that I could understand what was going on. I would highly recommend Liam Services and ask for Carson, you won't get a better technician.
    I highly recommend Kemmar. He is a very knowledgeable, professional, and friendly. I will be a returning customer.Thank you LIAM Services.
    Carson called and asked if he could start early! Yes!! That eliminated stress. He was very understanding about my dog. Explained the services very well. Work was done the same day. He offer to grab me something when he took his lunch break. My AC outside unit has been relocated and is running beautifully thanks to Carson. I will definitely request him for any future jobs that require his expertise. Wish there were more than 5 stars to be given.
    I would like to commend Justin and his apprentice,Trent, for a perfectly executed removal of an old light fixture and the installation of a new one in its place. They arrived early and were done before the time they had scheduled to arrive, giving us our day back.Neat, clean, no mess or misunderstandings.⭐️ ⭐️ ⭐️ ⭐️ ⭐️I would give them more than just 5.
    Justin and Trent were professional and really nice. My dog wasn't sure about having 2 men in the house and they were so kind to him and really tried to put him at ease. The work was done quickly and everything works great. The cost was reasonable too. I would definitely use them again!
    Had Justin and Trent replace a dimmer switch at my home They arrived at the exact time they had promised. Knew exactly how to resolved our problem, fixed it without any issues and at an affordable price.Both men showed the professionalism and their knowledge!I am glad I choose LIam sevices!!Jack
    Kemmar did an amazing job and ensured our problem with our a/c system was fixed in a prompt and timely fashion. Thoroughly pleased with the service provided, and we plan to use your company should any heating and cooling issues arise in the future.
    Justin came well after normal working hours to replace a defective hot water heater breaker. He was prompt, professional and very responsive to our issue. He provided excellent service at a very reasonable price. Very satisfied with Justin and Liam Electrical Services.
    Carson and Doug offered exemplary services in getting my AC fixed same day. Carson worked long and hard. Calling multiple shops for parts. He got me set up fast without issues. Doug, informed me of the membership plan and explained it very thoroughly. Highly recommend these gentlemen for all of your AC/Heating needs.
    This was my first experience with Liam Services. I give Carson an A+. He was so very thorough, professional and polite. He explained everything in detail along with photos which made it easier to see first hand and to understand. I will request Carson in the future and will recommend Liam services to my neighbors.
    Justin went above and beyond for my electrical needs! If I have any work that needs to be done in the future I will be asking for him again!
    Carson came to our home today and got the air conditioning working again! He was knowledgeable and courteous and did an excellent job quickly! I'm thankful for the great job he did and would recommend LIAM to others!
    I am so glad that I found LIAM Services.This company is Professional, Informative, On-time and one that I will Definitely recommend to Family and Friends.The three Professionals that I interacted with Andrew, Doug and Justin were Top Notch ☆☆☆☆☆
    Justin and Trent were great! Professional, knowledgeable and helped come up with a solution to get our issues taken care of. Even called me to let me know they could get to my store a little earlier than expected. Would recommend to a friend for sure!
    Carson was awesome! Got our AC back and running in no time! He was courteous and professional and knew what the problem was right away! Thank you!!!
    Carson was a God send! It has been a rough week and the AC was one more thing that went wrong.. Carson was professional, timely, informative and trustworthy!! Highly recommend him and Liam Services!!
    Carson was professional, thorough and the most knowledgeable HVAC technician we’ve ever worked with. We highly recommend Liam Services!
    Carson came out to do our maintenance and install indoor air quality products. He is very professional and friendly and i would recommend him and Liam Services to everyone!
    Carson was very prompt, polite, informative and professional. I loved that he explained recommended service without pushing me to purchase. I would highly recommend Liam service to a friend
    Had Bert and Ernie come out (Brandon hudson). They were great. So to explain more. I called another company to come do work. I have family moving into an auxiliary unit I have. My mom is bed ridden right now. So the room had issues with outlets and a broken ceiling fan. I called one company. They made 2 appts with me and blew me off twice. So I called Liam and originally wasn't able to get someone out but I explained my issue and timing and this is needed to do before my mom moves here. They were AMAZING. Called me back and got guys out to my house same day. I now am going to be lifelong customers of theirs cause they did this. Signed up for the service plan as well. Good companies that respond are very valuable and this one proved it to me today. Thank you
    Carson was here did a great job.
    Carson arrived on time and did great work
    Tim Newcomb just performed annual maintenance of our HVAC. First year using Liam. Very thorough. Previous companies was cursory inspection. Tim checked, cleaned and improved system performance.
    Justin came out on an emergency call to my home after some serious storm damage pulled my power line right off the house. After Delmarva had handled their end, Justin gave me a quote on the spot for the repair work. He was timely to my house, professional and personable. Highly recommend using this company for your electric needs.
    I’m so grateful for Carson. He was able to help us out even when I couldn’t be there. He was very professional to my wife and friendly to my children. He explained the differences in systems very clearly and helped us make a good decision. He was also patient with us as we had to make some of these decisions in between work responsibilities. Very grateful for his thoroughness!
    Carson was our tech today. He was incredibly helpful in figuring out what was wrong with our system and helping us figure out a short term solution while we decide on what new system to choose. He did a great job of explaining all of our options and why certain systems are better for our home than other systems. Also was very polite and friendly to our kids and our dogs. Happy to have him in our home again!
    Tim was very helpful and very educational on things I didn't know thanks Tim
    Justin and Trent came out and fixed several long standing electrical issues around the house. They were professional and came well equipped to solve multiple problematic outlets and electrical issues. Will use Liam services again. Very simple, effective, and reliable company in my experience.
    My electrician for life now!! U rock justin!!
    Loy and Tim were absolutely fantastic. They came in for an estimate and addressed all our concerns on the spot with detailed information. We used another electric company before that had such difficulty with our hallway lights and completely removed a switch. After such great customer service and workmanship on the original outlet issue we called for, we decided to move forward with replacing the hallway lights. Thankfully they had room on the schedule and were able to get the new recessed hallway lights completed and switch that was removed back in place with any issues. This is my 2nd time using LIAM and both experiences have exceeded expectations. You will not find many service companies with a 5 star rating and this many reviews. I was actually surprised, but they live up to it!
    I had Carson out today to look at my schedule. He was very polite and professional. I would recommend him and Liam Services.
    Justin Montgomery did electrical work for us and we are very pleased with his work. Would have him back again if needed. Thank you.
    Justin Montgomery did a very professional installation of a four prong outlet for our stove. He was pleasant, professional and proficient in getting the job done. He was on time and timely in getting the job done.Harold & Shirley Hall
    Tim arrived on time and was very knowledgeable. He figured out the issue and quickly fixed it. I bought an annual service agreement.
    This company is Top Notch, and Tim... nothing short of Amazing. He has the knowledge and the personality that inspires Customer Loyalty!! Well done!!
    I am new to the Middletown area and hired Liam Services to install a new electrical panel, dehumidifier and add extra circuits. I needed to air condition my third floor. I couldn’t be happier! On their initial visit, Jayson explained my options clearly. He was straightforward about the job and offered multiple options. Justin, the electrician, was very professional, prompt and courteous. The work he did was excellent! I would HIGHLY recommend this company!!!
    Excellent experience with Liam Services! Carson patiently listened to my concerns and skillfully examined my current HVAC system. Based on his recommendations, Liam Services returned to complete an air duct cleaning. Carson and Kemmar did a professional and thorough job. Carson also installed an air purification system for assurance that only clean air is coming through. Both Carson and Kemmar were kind and professional!
    I wanted to thank Justin and his son for fixing my electrical issue. They were very professional and knowledgeable of the task at hand.
    My experience with this company is positive from the Jenna answering the phone in a professional warm manner to the service tech coming to your home. I love the way they keep you posted with the arrival by texting and emailing you. They give a bio about the tech along with a picture, so when they arrive you feel like you know them. I had service dealings with Brandon, Tim, and Andrew and not only they were extremely efficient in what they do, but they were all so profession and friendly. I will definitely recommend this company. I used them for electrical and HVAC services.
    LIAM Services has helped me with several projects, most recently a new hybrid water heater. I was very happy with the install and the technicians were really informative about the equipment and the work being done. I also appreciate their help getting me connected with Energize Delaware to help understand the different opportunities for projects!
    Tim is awesome 👌 and came out on a Saturday.
    Carson was super helpful, answered all my questions, was right on time, and solved our issue with our AC unit and replaced the right part the first time with no pressure for unneeded upcharges. I would absolutely use Liam services again!
    Very good experience. Tim showed great professionalism and courtesy while spending time servicing our units. Would recommend!
    I was having a problem replacing a bathroom exhaust/light. I had it halfway done and ran into some difficulty. I called LIAM SERVICES and they had Justin come out within a couple of hours-which was great because I had a bunch of stuff just hanging from the ceiling on a Friday afternoon! Justin was great. He was friendly, and explained my options. I made a decision and Justin came out the next week and took care of the my exhaust. I would highly recommend LIAM SERVICES.
    I just want to say that Tim was amazing he was kind and so helpful put my mind at ease he took special care the best thing I ever done was make that call thanks Tim you are a rock star
    Tim & Kemmar were so wonderful! They were very thorough, and an exceptional job. Both were professional and a lot of fun. The work was above and beyond what I had hoped for and they finished ahead of time. I highly recommend Liam Services! Ask for Tim & Kemmar!
    Carson was my technician and quickly diagnosed and fixed my problem. He was courteous and professional. I couldn’t ask for better service!
    On time, fast professional service! Tim came out and looked things over and then about a week later. Tim returned with Kemar, and installed my new water heater in about 2 hours. They were fast, friendly professional. Everything was left in a clean state. Couldn't ask for more.if you like my review, click on the little thumb below.
    I whole heartedly recommend Liam Services. Their prices are competitive, the quality of the work was impeccable. Loy and his co-worker did the complex work of running underground wires to install a charging station located in the opposite side of my house. Needless to say that did excellent work and that I'm very happy with the result.
    Thank you Carson for your courtesy and expertise with installing my new thermostat. Big thanks for your easy tutorial on how to use the Honeywell T1 Pro!
    I had an emergency situation with rain water entering my electrical box. I contracted with Liam Services for an inspection and estimate, and the technician, Justin Montgomery, diagnosed and recommended a service upgrade of my exterior service line due to weathering and deterioration. Justin performed the work in a very satisfactory manner and he was very professional from a customer relations standpoint. I am very pleased with the service rendered and would definitely recommend their services. The office staff was also very responsive and professional.
    I have found this business and their personnel to be honest and knowledgeable. I absolutely recommend them for Lennox HVAC services.
    Justin was the electrician who came out to my place when I was having an issue. He was timely and did very quick work. Was able to solve the issue and have it fixed in no time. Very professional!
    Tim did an awesome job professional quick and funny.
    Justin and his son Trent arrived quickly and fixed an issue with our daughter’s fan/ lights. They were very friendly, professional, and knowledgeable. Would definitely use their services again!
    I had an electrical emergency and Justin was dispatched out to me. He was on time, he was very professional, knew what the situation was right away and he was very knowledgeable. You got the email of an estimate right then and there. I would definitely recommend Justin and what I need service I will make sure I request him.
    “BIG” Tim Newcomb is your go to guy to request for HVAC servicing! He’s got more than a decade of technical experience and is a “no bones about it” professional!
    Tim was great came over a hour away and he was awesome
    Justin was amazing, we’ll definitely be using Liam services again and will be requesting for Justin to do phase 2 on our home.
    Justin, the electrician, did a very professional job, well prepared and good quality, upgrading and replacing an electrical transformer.
    Had my ap0t with Tim. He’s the man! Tops in my book.
    Awesome service all the timeAll employees super clean appearance.Very knowledgeable.Customer friendlyAlways on timeOpen communicationExcellent job performance
    Couldn't be happier with experience with LIAM Services! Called on a Wednesday, they came out and fixed our issue on Thursday in just a couple of hours. Very professional, Brandon did a great job. Highly recommend
    6/15/2023 update: Carson and Kemal out today for my Spring service to my air conditioner! I am completely satisfied and happy with these gentleman! So courteous and professional! Thank you!Fabulous service and completely happy and satisfied with all who helped me this week from Mark who answered my call to Daniel who came out the same day when my central air failed in 90 degree weather! Daniel got me running again same day and helped with completing reasonable finance options with installation of new Ac unit and furnace! Knocked it out quickly today within 48 hrs of my phone call! My team included Daniel, Derrick, Cameron and Cooper and I loved them all! Professional, courteous, and timely! Would call them again and recommend them highly! Explained everything thoroughly and so friendly! Kept me updated on arrival times etc, AWESOME experience!
    Appointment today with Tim, great guy, very kind and great work, never disappointed
    It's was a pleasure working with Tim. Would definitely recommend!
    Brandon and Timmy are the two awesomest Brothers I ever seen in doing the work very work sufficient thank you very much very pleased Miss Gordon okay
    Tim Newcomb was on-time. He was professional and knew his stuff. He took the time to explain what he was doing and why he was doing it. We have just bought this house and had no idea when anything had been serviced last. Tim said from the looks of things it had been about 4 years. He cleaned the A/C, charged it, changed out a non-working part, and made our A/C system run like new again. I signed a service contract on the spot with the stipulation that no one but Tim come take care of us!
    Tim was the absolute best! He was knowledgeable, pleasant and quickly provided thorough maintenance and repair on our air conditioning unit.Thanks so much for top-notch service. Highly recommend!
    Justin was great! Prompt, friendly and efficient. I highly recommend Justin and LIAM.
    Liam Services scheduled my dryer vent cleaning within two days. It was a pleasure to speak with someone rather than leave a voicemail. They immediately sent me a text reminder. On the scheduled day, Tim Newcomb called ahead to let me know he was on the way. Tim explained everything he was going to do. He also asked about AC inspections. We set up an appointment for the dryer and also the AC cleaning. Tim is very knowledgeable, professional, and explains everything before he starts. I am so pleased with the service, that I intend to continue using Liam for other services in my home that I have been putting off. It is great to have a reliable service company you can call.
    Tim is very professional and courteous. He is great to work with. He installed an electrostatic air filter and drain sensor for us. Thanks.
    Tim is the best. We connected in many personal ways. Would recommend to anyone.
    Our AC went out just when the week was getting hottest, and their technician Carson got us back up to speed before I could break a sweat. Excellent service, speedy and reliable, can’t recommend enough.
    A+ service deserves an A+ review. Carson saved my weekend by getting this AC unit fixed for the family. I was so amazed by his work that I had to share the before and after pictures. Not to mention I have a happy wife at home when she is cool which makes my life much happier.
    I had a great experience with Liam Services. My AC went down on a Friday evening and I was able to make an appointment right away and very easily. Their technician Carson showed up right on time, was very friendly and knowledgeable and knew exactly what to look for and fixed my system very quickly. They are also very military friendly! Would highly recommend Liam Services and I will certainly be using them again in the future.
    We had an excellent experience with Tim Newcomb. We got same day service, he arrived in the window of time that they said he would, he was able to make the repair quickly, and he was pleasant and professional.
    Tim Newcomb was Awesome, on time and very informative. Will use Liam Services again, Thanks Tim!
    We called Liam when our AC wasn't blowing cold. They sent out a true professional named Carson who diagnosed our problem in no time. Carson went above and beyond! I will definitely be using their services in the future.
    Justin was excellent! He was professional and informative. He went above and beyond in diagnosing the electrical issues I was having, explained everything that had been done, even corrected minor issues from previous work done, and provided fair and transparent pricing on the quote. If I have any need for electrical services in the future I hope they send Justin!
    Justin, Bryan and Tim all came and looked at our situation and got it all sorted out for us. Was a great and professional job and 100% recommend this company
    We had Loy out to inspect our electrical system. He was able to troubleshoot an issue I was having with an overhead fixture and replace a damaged outlet. He was very friendly and knowledgeable.We also had Carson out to do our annual A/C inspection. He was also very friendly and knowledgeable. He made some recommendations to help keep our a/c unit in tiptop shape. He did not try to push us into any of his recommendations.I also want to say that the woman who makes the appointments is also very pleasant to work with.I would highly recommend Liam Services for any HVAC and electrical work. We have had wonderful experiences with all the employees we have come in contact with.
    Justin did a GREAT job!! So polite and professional!! Talked me over the whole process I was having done! Highly recommend him and this company !
    LIAM services should write a manual on how to run business in general. Not Just HVAC any business! The professionalism they exhibit should be the standard across all businesses. From the owner on down they check all the boxes. Whether its Carson or Tim you wont be disappointed. LIAM has done new installs, regular maintenance, and yearly maintenance for my family and leave me speechless each and every time. All of their technicians are well versed in their trade and depict a level of experience and knowledge that its as if they make them or clone them lol. I highly recommend LIAM services they by far through my 29 years in business as an owner and consumer set the bar. Thank you guys for being excellent with each and every visit. I recommend everyone dont think twice about giving LIAM your business.
    This company is the greatest, amazing customer service reasonable prices. Ask for Tim he’s the greatest.
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