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Avatar for Cawiamca Heating, Cooling, and Electrical
Cawiamca Heating, Cooling, and Electrical
5.0(
95
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+6 more

Serving Clinton, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Emergency services offered

"Ron was on time, made great options with good reasoning behind layout of installing Mini Split Air Conditioning Units. Same day estimate sent via email with breakdown of cost. Installed right away and done in one day. The crew was very professional and easy to work with. I would recommend Cawiamca to anybody in need of AC installation in fact I already did to my niece."
Variable Refrigerant Flow Cold Weather Heat Pump in East Lyme
VRF Cold Weather Heat Pump in Groton
Additional Photos
Additional Photos
Response time8 hrs
27 neighbors recently requested a quote
Recommended by93%of homeowners
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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

"The salesman came to our home & was very professional & knowledgeable. We got several quotes but decided to go with this company because of the knowledge of the salesman. The technicians came to install the air conditioning on time, wearing masks, and did a fantastic job. There were no problems whatsoever with the install. They also were very neat & cleaned up after they were done. I definitely would recommend this company!"
Gas Furance
Ductless Heat Pump Installation
New Navien System
Old Oil Furance
Ductless Heat Pump Installation

+27

Response time1 day
Response rate86%
49 neighbors recently requested a quote
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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 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
22 neighbors recently requested a quote
Recommended by85%of homeowners
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Avatar for MTL Heating & Cooling
MTL Heating & Cooling
4.7(
142
)
Central A/C - Service or Repair

Serving Clinton, CT and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Excellent service. Very prompt. Called Mike and he came out within a hour. Mike is very experienced, having dealt with many HVAC companies, these guys are tremendous. New exactly what was wrong and fixed it like a professional. Cost was better than I even expected. Forget the others and call MTL. Iâ ll be using them from now on."
Viessman boiler oil to gas conversion Orange
Peerless oil boiler/Amtrol indirect water heater
Navien Boiler oil to gas conversion Stratford
Day & Night gas furnace New Haven
Peerless gas boiler West Haven

+4

Response time8 hrs
Recommended by98%of homeowners
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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 Clinton, 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%
9 neighbors recently requested a quote
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Avatar for East Coast Mechanical Inc
East Coast Mechanical Inc
4.4(
94
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Clinton, CT and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"The technicians were clean, professional and punctual and did the job as was planned."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+5

Response time1 day
Response rate100%
6 neighbors recently requested a quote
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Avatar for EREG PROPERTY MAINTENANCE & MANAGEMENT
EREG PROPERTY MAINTENANCE & MANAGEMENT
5.0(
88
)
Window A/C Unit - InstallWindow A/C Unit - Install - For Business

Serving Clinton, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Set up our chicken coop. Very please with last minute accommodations to have them assemble coop for us."
Various Handyman Projects
Handyman Services Project
Plumbing Project
Handyman Services Project
Handyman Services Project

+4

Response time2 days
Recommended by72%of homeowners
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Avatar for Valerie Spencer Interiors LLC
Valerie Spencer Interiors LLC
5.0(
90
)
Window A/C Unit - InstallWindow A/C Unit - Install - For Business

Serving Clinton, CT and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

"Hang 7 or 8 items on the walls"
Additional Photos
Additional Photos
Response time1 day
1 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Accuray Mechanical
Accuray Mechanical
5.0(
5
)
Central Air Cleaner - Install or ReplaceCentral Air Cleaner - Repair or Service

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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Avatar for HARP Home Services, LLC
HARP Home Services, LLC
3.7(
106
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Service or Repair+4 more

Serving Clinton, 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
45 neighbors recently requested a quote
Recommended by71%of homeowners
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FAQs for air conditioning projects in Clinton, 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 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.

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