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Top-Rated Air conditioning pros in Clinton - Updated Nov 2026

Avatar for Cawiamca Heating, Cooling, and Electrical
Cawiamca Heating, Cooling, and Electrical
5.0(
96
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving Clinton, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Emergency services offered

"We were referred to Cawiamca in Old Saybrook, CT, 860-661-5913, by Fujitsu United States, to fix our Split System air conditioner that stopped working on the hottest day of the year. Cawiamca technicians responded immediately. They are professional, efficient and personable. They analyzed the problem and fixed it for a very reasonable fee. We couldn't be more pleased with the service they provided. We will certainly use Cawiamca if needed again."
Variable Refrigerant Flow Cold Weather Heat Pump in East Lyme
VRF Cold Weather Heat Pump in Groton
Additional Photos
Additional Photos
Response time8 hrs
28 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Onofreo Home Comfort Systems, LLC
Onofreo Home Comfort Systems, LLC
4.9(
38
)
Ductless Mini-split A/C - Install or Replace

Serving Clinton, CT and surrounding areas

Approved

In business since 2018

Free estimates

Small jobs welcome

"From start to finish it was a very positive experience. Shane explained everything and answered all my questions when he came out to give me an estimate on the project. Brandon and Brian showed up on time, completed the job in a timely manner and cleaned everything up when they were done. They showed me how to operate my new mini split AC system before they left. Shana was also very helpful when I called the office. The project turned out great. I would highly recommend Onofreo Home Comfort Systems."
Gas Furance
Ductless Heat Pump Installation
New Navien System
Old Oil Furance
Ductless Heat Pump Installation

+27

Response time1 day
Response rate86%
70 neighbors recently requested a quote
Avatar for Y & M Airduct Service
Y & M Airduct Service
4.9(
143
)
Air Ducts & Vents - Clean

Serving Clinton, CT and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"The Y & M Airduct Service...I will definitely use them in the future. They did an excellent job cleaning the air ducts and the dryer duct in my condo.Thoroughly explained the process and their service options.They were on time and very professional. Very happy with the service and the outcome."
Airduct
Airduct
Airduct
Airduct
Response time8 hrs
90 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Scotti Mechanical Services
Scotti Mechanical Services
4.7(
63
)
Central A/C - Service or Repair

Serving Clinton, CT and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Scotti Mechanical answered my call right away. He was out the same day to repair my central air conditioning. He took the extra steps to look at my furnace and check our filters. He was very professional and kept me informed. I would highly recommend him and I will use him again."
Response time5 hrs
18 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Parker Mechanical Heating and Cooling
Parker Mechanical Heating and Cooling
4.8(
17
)
Ductless Mini-split A/C - Install or ReplaceCentral A/C - InstallCentral A/C - Install - For Business+3 more

Serving Clinton, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Jeremy and his team gave me the best contractor experience I've ever had. He listened to what I wanted, provided a fair quote for a central A/C replacement (air handler and condenser), and never pressured me or tried to upsell. In passing, he mentioned a heat pump option for the shoulder months to reduce oil use, but that was it. After doing my own research, I called him back with questions, and he took the time to walk through the pros and cons honestly. There was no sales pitch, I actually asked for a quote heat pump quote too, because I saw the benefits myself. I ultimately chose the heat pump and appreciate that Jeremy gave me the information needed to make an informed decision. His crew was fantastic, friendly, professional, and thorough. They removed the old system and completed prep work on day one, then finished the install on day two and walked me through everything. Great communication, great pricing, great workmanship. I highly recommend Jeremy and his team!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+30

Response time4 days
Response rate100%
13 neighbors recently requested a quote
Avatar for Accuray Mechanical
Accuray Mechanical
5.0(
5
)
Air Ducts & Vents - Clean

Serving Clinton, CT and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"We were referred to contact the owner Lou to install central air in our home. After speaking to him he came to our house within a few days to give us an estimate. He emailed us with a proposal the next day. Within three weeks our unit and duck work was installed and only took Lou two days to do. Lou and his electrician are very efficient, professional and did an awesome job! I highly recommend this company!"
Goodman
Goodman
Goodman
Rheem
Goodman

+2

Response time1 hour
Recommended by100%of homeowners
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Air Conditioning FAQs, answered by experts

Yes, having mismatched evaporator and condenser coils in your AC system can lead to serious issues. For instance, it can result in higher monthly energy costs as the system runs longer to compensate for the mismatch. This mismatch can also put extra stress on the system, compromising its efficiency and longevity. 

Along with that, mismatched coils can lead to higher temperatures and humidity levels in the home. What’s more, using coils of different sizes may violate the manufacturer's warranty, as they are designed to work synergistically, and any mismatch could lead to repairs and system failure.

There are several tell-tale signs that your AC coils need cleaning, including:

  • You’re getting higher electricity bills.

  • Your home doesn’t feel as cool as it usually does.

  • Your AC unit is running longer than usual to cool your home.

  • Your home is more humid than usual.

  • The coil is covered in frost while running.

You need to know the square footage of your home first. Multiply that number by 20, which will get you the BTUs (British Thermal Units) needed to cool your home efficiently. Homes up to 1,000 square feet usually need a 1.5-ton unit; homes 1,000 to 1,200 square feet usually need a 1.75-ton unit, and homes 1,200 to 1,400 square feet usually need a 1.9-ton unit. Talk to a local pro for more specific advice on your home. 

While personal preferences widely vary, sleep experts say the best temperature for sleeping is between 60 and 67 degrees Fahrenheit rather than 78. If you do choose to sleep with your AC unit tuned to 78 degrees, you might want to use only a sheet or light blanket rather than a comforter. You might also consider installing a window unit in your bedroom so that you can be cooler in bed without wasting energy cooling the whole house.

While it is possible to add Freon to your AC unit yourself, it is not recommended. In fact, the U.S. Environmental Protection Agency (EPA) prohibits the handling of Freon without a license. Freon is a dangerous gas that can cause irreversible damage to your AC or yourself if not installed correctly. It is worthwhile to hire a professional to add Freon to your AC.

The Clinton, CT homeowners’ guide to air conditioning services

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