Top-rated air conditioning pros.

Get matched with top air conditioning pros in Old Lyme, CT

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Air conditioning pros in Old Lyme

Avatar for Cawiamca Heating, Cooling, and Electrical
Cawiamca Heating, Cooling, and Electrical
5.0(
93
)

Serving Old Lyme, 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
46 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Scotti Mechanical Services
Scotti Mechanical Services
4.7(
62
)

Serving Old Lyme, CT and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"He was very good at communicating as to what was wrong with my Air Conditioner, in a timely manner, very thorough and knowledgeable, excellent service. Would recommend to anyone needing appliance repair services."
Response time5 hrs
38 neighbors recently requested a quote
Recommended by86%of homeowners
Bill Aitken Heating, LLC
4.8(
46
)

Serving Old Lyme, 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."
3 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Irie Energy Heating & Cooling
Irie Energy Heating & Cooling
4.9(
19
)

Serving Old Lyme, CT and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"I cannot say enough good things about Ryan to do him justice. Ryan installed a full house Mitsubishi Ductless Heat-pump (8 air handlers and 2 compressors) system for me. Of the 8 quotes I received from various local contractors, Ryan had the best price by far for the same exact system! He showed up exactly when he said he would and would always respond to my communications in a timely manner. He went out of his way to have make sure the install was attractive and clean on the exterior. I have absolutely nothing negative to say about the whole experience and could honestly keep going on about how pleased I am. He is an honest professional who I would highly recommend for any of his services, especially a ductless install."
Mitsubishi
Mitsubishi
Mitsubishi
Mitsubishi
Mitsubishi

+14

Response time11 hrs
Recommended by89%of homeowners
Avatar for Omni Mechanical Services, LLC
Omni Mechanical Services, LLC
4.5(
85
)

Serving Old Lyme, CT and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Had a great experience with the 2 guys that came. One looked after the air conditioning system and the other the furnace and thermostat. found them to be knowledgeable, personably, and professional in there dealings."
Home Show
Featured Photos
Featured Photos
Featured Photos
Featured Photos

+22

Response time6 hrs
36 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for The Builders & Cleaners
The Builders & Cleaners
4.9(
119
)

Serving Old Lyme, CT and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I hired the cleaners and builders for one time maid service to help clean up after construction. They were efficient and affordable ..did a great job thank you so much!"
Dust out from the ductwork
Dust out from the ductwork
Clean vent
Clean vent
Dust in the return

+1800

Response time1 day
Response rate92%
Recommended by88%of homeowners
Avatar for HARP Home Services, LLC
HARP Home Services, LLC
3.6(
102
)

Serving Old Lyme, CT and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Friendly, professional and knowledgeable. Provided prompt and reliable service, installing new furnace, ac condenser and thermostat."
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
150 neighbors recently requested a quote
Recommended by74%of homeowners
...
Showing 1-10 of 88

FAQs for air conditioning projects in Old Lyme, 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 Old Lyme, CT homeowners’ guide to air conditioning services

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