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
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+6 more

Serving Old Lyme, 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
35 neighbors recently requested a quote
Recommended by94%of homeowners
Request Quote
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 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
29 neighbors recently requested a quote
Recommended by85%of homeowners
Request Quote
Bill Aitken Heating, LLC
4.8(
46
)
Central A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Old Lyme, CT and surrounding areas

Approved

In business since 1990

Free estimates

Credit card accepted

"Bill was amazing from the start. Within an hour of submitting an inquiry through home advisor he immediately contacted me. Not only did he have questions but also provided minor troubleshooting steps to ensure it wasn't anything small causing my forced air system from consistently power cycling. Highly recommended."
9 neighbors recently requested a quote
Recommended by89%of homeowners
Request Quote
Avatar for Irie Energy Heating & Cooling
Irie Energy Heating & Cooling
4.9(
19
)
Ductless Mini-split A/C - Install or Replace

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
2 neighbors recently requested a quote
Recommended by89%of homeowners
Request Quote
Avatar for Omni Mechanical Services, LLC
Omni Mechanical Services, LLC
4.5(
85
)
Central A/C - InstallCentral Humidifier - Install or ReplaceDuctless Mini-split A/C - Install or Replace

Serving Old Lyme, CT and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"This service was awesome!! Found some rodents around our unit, helped to clear it out... also cleaned out the mold in our bathroom exhaust fan. Super friendly and the price was really good! I will use them again. A"
Home Show
Featured Photos
Featured Photos
Featured Photos
Featured Photos

+22

Response time6 hrs
26 neighbors recently requested a quote
Recommended by96%of homeowners
Request Quote
Avatar for Parker Mechanical Heating and Cooling
Parker Mechanical Heating and Cooling
4.8(
17
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Old Lyme, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Installed a new AC system to replace old one for $7500."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+30

Response time4 days
Response rate100%
12 neighbors recently requested a quote
Request Quote
Avatar for EREG PROPERTY MAINTENANCE & MANAGEMENT
EREG PROPERTY MAINTENANCE & MANAGEMENT
5.0(
84
)
Window A/C Unit - InstallWindow A/C Unit - Install - For Business

Serving Old Lyme, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"My television stand was assembled as promised and an air conditioner was installed at no extea charge."
Various Handyman Projects
Handyman Services Project
Plumbing Project
Handyman Services Project
Handyman Services Project

+4

Response time2 days
Recommended by74%of homeowners
Request Quote
Avatar for The Builders & Cleaners
The Builders & Cleaners
4.9(
120
)
Central Air Cleaner - Install or ReplaceCentral Air Cleaner - Repair or ServiceWindow A/C Unit - Install+3 more

Serving Old Lyme, CT and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Very responsive, hard workers and accommodating."
Dust out from the ductwork
Dust out from the ductwork
Clean vent
Clean vent
Dust in the return

+1821

Response time1 day
Response rate92%
Recommended by87%of homeowners
Request Quote
Avatar for HARP Home Services, LLC
HARP Home Services, LLC
3.6(
104
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Install or Replace+4 more

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
104 neighbors recently requested a quote
Recommended by72%of homeowners
Request Quote
Avatar for Cariati Mechanical, LLC
Cariati Mechanical, LLC
5.0(
6
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+4 more

Serving Old Lyme, CT and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"They did an exceptional job with installing my new warm air system. Would highly recommend!"
Our Projects
Our Projects
Our Projects
Our Projects
Our Projects

+60

Response time3 days
Recommended by100%of homeowners
Request Quote
...
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.

See all articles