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Find Air conditioning pros in Old Mystic

Avatar for Cawiamca Heating, Cooling, and Electrical
Cawiamca Heating, Cooling, and Electrical
5.0(
92
)

Serving Old Mystic, 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
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Response time8 hrs
53 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Scotti Mechanical Services
Scotti Mechanical Services
4.7(
61
)

Serving Old Mystic, 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
33 neighbors recently requested a quote
Recommended by87%of homeowners
Bill Aitken Heating, LLC
4.8(
45
)

Serving Old Mystic, 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."
3 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Parker Mechanical Heating and Cooling
Parker Mechanical Heating and Cooling
4.7(
15
)

Serving Old Mystic, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Jeremy, the owner of Parker Home Services quickly - within hours - returned our request for service. He showed up early for the quote appointment. There was no BS. His quote was thorough and accurate. Jeremy removed and replaced the central AC units in a day and a half. His attention to detail is superb. Once the job was done, he brought me over to make sure that the AC worked as intended. While checking vents we noticed that some were not supplying air. Jeremy went back up in the attic and located three supply ducts that had been removed (by previous workers) from their registers and he reinstalled them. He also found a separate supply duct that had a board laying across it, constricting air flow. All of this was above and beyond what the initial job called for and shows that Jeremy takes great pride in his workmanship and making sure his customer is satisfied. We will have them back. Thank you PHS!"
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+30

Response time3 days
17 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for Diamond Plumbing & Heating, LLC
Diamond Plumbing & Heating, LLC
3.7(
86
)

Serving Old Mystic, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2003

Emergency services offered

Warranties offered

"Amir and team were prompt and delivered on a challenging well to city water conversion project. Very strong work ethic and they take pride in what they do. Would have given full five stars if they had told us they would giving us a better heads up that they needed to work into the night to finish the project."
4 High Efficiency Combi Install
Sewer main replacement
Surrey Ln
Clay sewer main replacement
Clay sewer main replacement

+13

8 neighbors recently requested a quote
Recommended by84%of homeowners
Neftco Mechanical LLC
5.0(
1
)

Serving Old Mystic, CT and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

NEFTCO Mechanical Heating and Cooling is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 15 years of experience serving Connecticut and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

HVAC!
HVAC!
HVAC!
HVAC!
HVAC!

+10

Recommended by100%of homeowners
Avatar for ASL Mechanical Services LLC
ASL Mechanical Services LLC
New to Angi

Serving Old Mystic, CT and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

Welcome to ASL Mechanical Services LLC! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!\n

Gallery
Gallery
Gallery
Gallery
Condenser

+2

1 neighbors recently requested a quote
Avatar for NEW ENGLAND SMART ENERGY
NEW ENGLAND SMART ENERGY
4.9(
13
)

Serving Old Mystic, CT and surrounding areas

In business since 2009

Emergency services offered

"They did a very good job. They took a lot of time. They went through and identified all of the air leakages in our house and then they did weatherization some improvements like air sealing and change light bulbs and things like that to improve our energy efficiency."
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NESEG Certified Techs
Blower Door Test

+38

Recommended by91%of homeowners
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FAQs for air conditioning projects in Old Mystic, 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 Mystic, CT homeowners’ guide to air conditioning services

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