HVAC Frequently Asked Questions
Have questions about the 2026 refrigerant phase-out, sudden AC breakdowns, or federal tax credits? Get straight answers from Fayette County’s premier Carrier® Factory Authorized climate experts.
Should I repair or replace my 15-year-old AC unit in Lexington?
If your AC is over 10–15 years old, it likely uses outdated R-22 or older R-410A refrigerant, making major repairs incredibly expensive due to parts scarcity. With the 2026 industry shift to high-efficiency SEER2 and R-454B systems, replacing an aging unit is often the smartest financial decision to lower your summer utility bills and prevent catastrophic mid-season breakdowns.
Why is my AC running constantly but my house is still hot?
This is a common issue during intense Kentucky summer heatwaves. It is typically caused by a frozen evaporator coil, a severely clogged air filter, a failing capacitor, or a low refrigerant charge indicating a leak. Turn your thermostat off immediately to prevent permanent compressor damage, and call our 24/7 dispatch line for rapid diagnostics.
Do heat pumps work well for cooling during Kentucky summers?
Absolutely. Modern inverter heat pumps are essentially advanced air conditioners that can reverse their cycle to heat your home in the winter. During a humid Lexington summer, high-efficiency heat pumps provide exceptional cooling and superior indoor humidity control compared to older, single-stage traditional AC units.
How much can I save on a new HVAC system with IRA tax credits?
Under the Inflation Reduction Act (IRA), Lexington homeowners can claim up to $2,000 in federal tax credits for installing qualifying high-efficiency heat pumps and hybrid systems. Quantum Comfort will help you navigate these 2026 rebates and match you with the most efficient Carrier system for your home's specific footprint.
How often does my HVAC system need professional maintenance?
We highly recommend professional maintenance twice a year—an AC tune-up in the spring and a furnace safety inspection in the fall. Regular maintenance calibrates your system for peak efficiency, prevents costly emergency breakdowns, and keeps your manufacturer warranty valid.
Lexington’s Premier AC Repair & Replacement Experts
As we enter the peak of the Summer 2026 cooling season, wait times for HVAC service across Fayette County will inevitably surge. Quantum Comfort Heating & Cooling is committed to keeping our community safe and comfortable. Whether you need an emergency AC repair in Chevy Chase, or a complete high-efficiency SEER2 Carrier® installation in Hamburg, our factory-trained technicians are staged locally for rapid response.
Don't let a failing system dictate your summer. We provide exact Manual J sizing, transparent repair-vs-replace guidance, and guaranteed apples-to-apples estimate matching. From navigating the newest R-454B refrigerant standards to securing your IRA tax credits, we engineer solutions built to last.
EXCELLENT Based on 206 reviews Posted on Google James TaylorTrustindex verifies that the original source of the review is Google. My technician worked quickly, and efficiently. I believe he was fair on price and I didn't feel pressured to do anything I wasn't comfortable with. Will certainly use Quantum in the future.Posted on Google Andrew NelsonTrustindex verifies that the original source of the review is Google. Quantum got the job done fast and well. The repair they did was on an old duct system and they found a solution that looks great.Posted on Google Yanet CasalisTrustindex verifies that the original source of the review is Google. Excellent service!Posted on Google Joan DouganTrustindex verifies that the original source of the review is Google. We recently had a great experience with Quantum Heating and Cooling in Lexington and wanted to share. From start to finish, Don and entire team were professional, responsive, and easy to work with. They showed up on time, explained everything clearly, and made sure I understood my options before doing any work. Their technicians are super knowledgeable and efficient, and the quality of the work really shows. It’s hard to find companies that are both honest and reliable, but Quantum definitely delivered on both. If you’re looking for HVAC services in the Lexington area, I’d absolutely recommend giving them a call!Posted on Google brooke BolinTrustindex verifies that the original source of the review is Google. Tuesday 3/31 I got the bad news I needed a whole new HVAC system after only a year of owning my first home. I had a company give me a quote and then got a second opinion by a friend recommended company, Quantum Comfort Heating and Cooling. I almost went with the other company but Dom the owner was amazing and was able to work with me to get the numbers where I needed them and I couldn’t be happier with the entire experience. From the initial consultation to the final installation, the team was professional, knowledgeable, and very easy to work with. 4/1: They showed up on time, worked efficiently, and kept everything clean and organized while they were here. You can tell they take pride in their work because the installation looks extremely neat and well done. They also made sure everything was running perfectly before they left and walked us through the new system and new thermostat (which he threw in when I don’t even ask for it) IT WAS ALSO BOTH OF THEIR BIRTHDAYS!! Overall, we had a great experience and would highly recommend Quantum Comfort Heating and Cooling to anyone needing HVAC work or a new system installed. Professional, honest, and high-quality work from start to finish.Posted on Google T WeaverTrustindex verifies that the original source of the review is Google. As always Dom is so great! Saw us in the same day. Fixed our issue quickly and had our AC up and running in no time. He's a hard worker and very professional. In my opinion you couldn't go wrong.Posted on Google david youngTrustindex verifies that the original source of the review is Google. They are professional and eager to make sure the job is done right. they do excellent workPosted on Google Laura AllenTrustindex verifies that the original source of the review is Google. We had an emergency situation on a Saturday and they were extremely responsive, showed up within the hour, fix the problem with professionalism and efficiency. I would highly recommend them.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Still Have Questions About Your System?
Don't leave your family's comfort to guesswork. Whether you need a second opinion on a failing compressor or want to explore SEER2 Carrier® upgrades before the extreme Kentucky heat arrives, our factory-trained engineers are ready to give you straight answers.
📅 Book a Free On-Site ConsultationOr speak directly with a technician: (859) 230-3995
