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

Avatar for Cawiamca Heating, Cooling, and Electrical
Cawiamca Heating, Cooling, and Electrical
5.0(
97
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+6 more

Serving Salem, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Emergency services offered

"This was the best experience with a company that I have never had come to my home before. I run an Airbnb out of my residence and my central air stopped working in the middle of a heat wave. I called all the service people in my area and no one could come for 2 weeks. I was panicked! I found Cawiamca on Angi's list. They are located in Saybrook CT. I wasn't sure they would come all the way to my home in Mystic. The owner himself called me and had someone come out THAT VERY DAY!! And the problem was fixed within an hour. I can't say enough good things about this company and the service man that came out. Fabulous, friendly, and expert service! I highly recommend them!"
Variable Refrigerant Flow Cold Weather Heat Pump in East Lyme
VRF Cold Weather Heat Pump in Groton
Additional Photos
Additional Photos
Response time8 hrs
31 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Scotti Mechanical Services
Scotti Mechanical Services
4.7(
63
)
Central A/C - Service or RepairCentral Air Cleaner - Install or ReplaceCentral Air Cleaner - Repair or Service+2 more

Serving Salem, 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
14 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Irie Energy Heating & Cooling
Irie Energy Heating & Cooling
4.9(
20
)
Ductless Mini-split A/C - Install or Replace

Serving Salem, CT and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Contractor is a great communicator and is excellent at keeping me posted on all the latest project developments. Work is scheduled for 10/3 and should be completed that same day. Price is reasonable. No doubt the service after installation will be top notch. I would recommend Ryan’s company to anyone who asks. It’s nice to find a reliable contractor in your own community!"
Mitsubishi
Mitsubishi
Mitsubishi
Mitsubishi
Mitsubishi

+14

Response time11 hrs
Recommended by85%of homeowners
Bill Aitken Heating, LLC
4.8(
47
)
Central A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Salem, CT and surrounding areas

Approved

In business since 1990

Free estimates

Credit card accepted

"We hired Bill Aitken Heating to repair our gas furnace, we had an accumulation of water in the furnace pan. I called Aitkens Heating and received a call back immediately. They were here promptly at the time scheduled for repair. Mr. Aitkens had my furnace repaired within a half hour. He arrived with his helper and I could not be more satisfied with the work these gentlemen did. Bill took the time to explain in detail what he did for the repair. Bill Aitken is our GO TO man for any of our heating and air condition maintenance. I would like to add he was very reasonable. My husband was not available to over see this project so I handled the whole project from start to finish. BILL AITKEM HEATING LLC. comes very highly recommended by the Perkins family."
6 neighbors recently requested a quote
Recommended by87%of homeowners
American Air Mechanical, LLC
4.2(
121
)
Central A/C - Service or RepairCentral Air Cleaner - Repair or ServiceCentral Humidifier - Repair or Service

Serving Salem, CT and surrounding areas

Approved

In business since 2004

Free estimates

Customers say: Quality work

"Paul is a highly skilled professional who works on central air condition as well as furnaces. We have used Paul for a few years now for both A/C and furnace inspections and repairs. He is the best!!! Contacts you and follows up timely. Very professional. Reasonably priced and efficient."
14 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for HARP Home Services, LLC
HARP Home Services, LLC
3.7(
107
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Service or Repair+4 more

Serving Salem, CT and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"We had a split air conditioning system installed. Everyone was very professional and they were very careful to clean up everything. We will definitely call them again to replace a 40 year old boiler."
Multiple Solutions For Your Home
Available When You Need Us
Cleaner Than We Found It
Only The Best Technicians
Professional Maintenance

+29

Response time4 hrs
76 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for ASL Mechanical Services LLC
ASL Mechanical Services LLC
5.0(
2
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+1 more

Serving Salem, CT and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"I highly recommend ASL Mechanical! Austin recently replaced the compressor in my AC unit after I had an extremely frustrating experience with two other companies. One company did a poor job with the wiring and was unreliable with scheduling, while another recommended replacing the entire system?even though the unit is only four years old. Austin was a breath of fresh air! His professionalism, knowledge, honesty, and fair pricing were greatly appreciated. He took the time to properly assess the situation and provide the service that was actually needed. It?s refreshing to find a company you can trust. I wouldn?t hesitate to recommend ASL Mechanical to anyone looking for quality work and dependable service!"
Gallery
Gallery
Gallery
Gallery
Condenser

+14

20 neighbors recently requested a quote
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FAQs for air conditioning projects in Salem, CT

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Salem, CT homeowners’ guide to air conditioning services

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