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TRUSTED BY OLD LYME, CT HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon140
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Old Lyme - Updated Nov 2026

Avatar for Scotti Mechanical Services
Scotti Mechanical Services
4.7(
63
)
Central A/C - Service or RepairDucts & Vents - Install or ReplaceCentral Air Cleaner - Repair or Service

Serving Old Lyme, CT and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"I feel fortunate to have been able to meet Chris and have him fix my HVAC issues. He was prompt, excellent at communicating, and also is a great listener. The cost of my service wasn't low due to what was needed but it was more affordable than other quotes I'd recieved; some of the others who had spoken to me on the phone were indicating rates that were 50% higher than what Chris charged for the same exact product! I'll gladly hire him for future work. I've already given his number to others with HVAC needs."
Response time5 hrs
19 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Everclean Air LLC
Everclean Air LLC
4.8(
43
)
Air Ducts & Vents - Clean

Serving Old Lyme, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"I wanted to clean a second floor dryer vent hose that was loaded solid with lint. It was worse than I thought! Packed solid! It became evident that this was a messy and dangerous situation as it was a fire hazard. Through Angi I found Everclean and the co. was a perfect fit. HVAC companies don’t do dryer vents. Justin from Everclean was awesome and got the problem straightened out. He even discovered the dryer vent had become disconnected from outside dryer vent door! I can’t fit through the narrow attic hatchway as my shoulders are a bit too wide, so I depended on Justin. Finally, everything is buttoned up, and our clothes now dry in half the time. Cost was moderate and was money well invested. Dryer vent fire danger is now negligible compared to before. Along with neighbor hatred danger. I would hire Everclean again if needed again."
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+2

Response time7 hrs
Response rate100%
7 neighbors recently requested a quote
Bill Aitken Heating, LLC
4.8(
46
)
Electric Furnace / Forced Air Heating System - InstallHeat Pump - Install or ReplaceElectric Furnace / Forced Air Heating System - Repair+11 more

Serving Old Lyme, CT and surrounding areas

Approved

In business since 1990

Free estimates

Credit card accepted

"Bill called me first thing in the morning (7:30) after I sent out a request very late the night before. I had one others HVAC contracter make two trips to my home but could not figure out the problem? Bill had two of his tecknisions come out that morning but the problem still eluded them. The next day Bill came to my house and within 10 minutes he had it figured out. He explained exactly what the problem was and got my furnace up and running at 100%. He called back that night to check with me and make sure. Everything was OK."
8 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Y & M Airduct Service
Y & M Airduct Service
4.9(
143
)
Air Ducts & Vents - Clean

Serving Old Lyme, CT and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"Matt and Harvey were professional and very clean. Two of our neighbors hired them to clean their HVAC ducts and dryer vents. We will have them back and refer to our family and friends."
Airduct
Airduct
Airduct
Airduct
Response time8 hrs
92 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for 888-I-DO-DIRT
888-I-DO-DIRT
4.5(
381
)
Air Ducts & Vents - Clean

Serving Old Lyme, CT and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"Alex was great! Courteous, responsive, prompt, friendly, but more importantly, honest. The job couldn’t be done because of the structure of my HVAC system, yet Alex (and Vinny) took the time to explain the problem and tried, albeit unsuccessfully, to seek an alternative solution. I have such respect for his honesty. I highly recommend using this company, for that reason alone."
Sample Cleanings
Sample Cleanings
Sample Cleanings
Sample Cleanings
Sample Cleanings

+11

Response time4 hrs
5 neighbors recently requested a quote
Recommended by97%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

High humidity is one of the most common reasons for air vents to sweat or produce condensation. When the cool, dry air from your HVAC unit meets warm and moist air in your home, it will cause condensation. Insulating your ductwork can help prevent this. If you live in a very humid region, a dehumidifier can also help.

To extend your HVAC system’s lifespan, it’s crucial to keep up with maintenance. This includes changing filters and thermostat batteries, keeping the outside unit clean and clear of clutter, and lubricating moving parts. Watch out for leaks, mold buildup, and blockages to ensure your unit stays in good working order. Spotting these issues early can be the difference between a simple, wallet-friendly repair and an expensive replacement.

No. HVAC, which stands for heating, ventilation, and air conditioning, includes all of the systems that work together to regulate a building’s temperature and humidity levels. In comparison, air conditioners only provide cooling. You can have an air conditioner as part of your HVAC system, but not all HVAC systems include air conditioners.

To keep your air conditioner in good working condition, you should have it serviced by a professional at least once per year, ideally in the spring before the cooling season begins. If your AC unit is 10 years or older, consider servicing it twice a year (once in the spring and once in the fall) to catch potential problems early and help it reach its full lifespan. During a service visit, a technician will inspect, clean, and replace parts as needed. Regular maintenance helps avoid costly repairs. As a DIY task, you can also clean the evaporator coils annually.

Excessive humidity in a room often manifests through visible signs like condensation on windows or walls, a musty or damp odor lingering in the air, peeling wallpaper or paint, and the presence of mold or mildew. Experiencing discomfort due to a consistently clammy or sticky feeling can also indicate high humidity levels.

The Old Lyme, CT homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.