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

Avatar for Tyler Heating, Air Conditioning and Refrigeration LLC
Tyler Heating, Air Conditioning and Refrigeration LLC
4.6(
132
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+12 more

Serving Seymour, CT and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"I came home on a warm Friday early evening from work to find that our AC was not working. After making one call to another company who serviced our unit years ago and getting their voicemail, I waited a couple of hours then contacted my friend Maggi from Tyler. She responded immediately and the technician, Jonathan had the AC up and running by 9:30 the next morning. Thank you!"
Carrier Ductless Heat Pump Condenser
Carrier Performance Ductless Heat Pump High Wall Air Handler
Additional Photos
Additional Photos
Additional Photos

+172

Response time2 days
Response rate100%
3 neighbors recently requested a quote
Avatar for Perfect Timing Heating & Cooling
Perfect Timing Heating & Cooling
5.0(
15
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Seymour, CT and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"From start to finish with my project Gary and his team were helpful, responsive, knowledgeable, and professional. Gary considered all of my heating/ac/humidity concerns, took full measurements of my condo, system and energy calculations, and recommended three good options of Bryant electric split heat pump systems. I ended up choosing the most efficient top of the line model as I was replacing a 25+ year old unit. I felt that the price was fair and even if I could have found a slightly lower price, I was very comfortable hiring Pelletier based on Gary’s initial follow-up, professionalism and thoroughness when quoting my job. They also went the extra mile when doing the installation under terrible weather conditions. I’m very pleased with the end result. I have no hesitation in recommending Pelletier."
Gary with his fleet
Mike and his Truck
All Hands On Deck!
The Fleet
The Fleet

+1

Response time7 hrs
Response rate100%
33 neighbors recently requested a quote
Avatar for Chernin HVAC & Refrigeration L.L.C.
Chernin HVAC & Refrigeration L.L.C.
5.0(
12
)
Central A/C - Service or Repair - For Business

Serving Seymour, CT and surrounding areas

Approved

In business since 2022

Credit card accepted

Offers commercial services

We have a $200 diagnostic fee, this includes travel, service call fee and waiver for the first hour of work. We take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job. Unfortunately, at this time we do NOT install geothermal heating and cooling. We charge $250 to come out and meet with you and to discuss your HVAC project options. We will walk you through the incentive and rebate process as well. If you decide to use us as your mechanical contractor, we will issue you a credit of $250 on your invoice. We only converse in English.

Response time10 hrs
Recommended by90%of homeowners
Avatar for H L Bowman
H L Bowman
4.6(
430
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Install or Replace+1 more

Serving Seymour, CT and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"H L Bowman is by far one of the best service companies that I have dealt with. I got a call that the technician was on the way to my house. George showed up and got right to work. Found my problem and explained to me the best way to fix my issue. They did not try to sell me on any pricier fixes. George showed me what he could offer and explained what would be my best option. He was knowledgeable, informative, and explained everything so that I would understand what was going on. I am definitely going to be using them for all my heating and air conditioning needs. Top notch company. Would recommend to anyone needing this kind of help."
Additional Photos
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Additional Photos
Additional Photos
Additional Photos

+6

464 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for AirWise Mechanical, LLC
AirWise Mechanical, LLC
5.0(
4
)
Central A/C - Service or Repair

Serving Seymour, CT and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

AirWise Mechanical take great pride in our experience, expertise, quality and customer service, that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate, with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today!

Response time6 hrs
Recommended by100%of homeowners
Avatar for Hillcrest Fuel, Inc.
Hillcrest Fuel, Inc.
4.6(
75
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Seymour, CT and surrounding areas

Approved

In business since 1938

Free estimates

Emergency services offered

"Matt and his team did a fabulous job replacing and installing our oil furnace. He also helped with other issues that we were having with our heating and cooling system for years. Very conscientious, courteous and keeps a the place clean,"
Fujitsu Heat A/C Heat Pump
American Standard Air Conditioning
95% Alpine Boiler Nat Gas
Burnham X2 Gas Boiler
Burnham X2 Gas Boiler

+1

Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Northeast Heating & Cooling
Northeast Heating & Cooling
5.0(
8
)
Central A/C - InstallCentral Humidifier - Install or ReplaceDuctless Mini-split A/C - Install or Replace

Serving Seymour, CT and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"I don’t usually write reviews, but I felt like I had to for this one. I’d been dealing with an ongoing furnace problem for weeks and had a couple other companies come out but nobody could give me a straight answer or actually fix the issue. When Enea from Northeast Heating and Cooling showed up, he figured it out almost immediately. He was able to explain to me what was wrong in simple terms, fix the problem on the spot, and even made sure it won’t happen again. The technician was professional, thorough, and you could tell he actually knew what they were doing. After all the frustration I had before, their service was honestly a huge relief. Highly recommend them."
Trane Furnace
Exposed Spiral Duct
Response time6 hrs
Response rate100%
6 neighbors recently requested a quote
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FAQs for air conditioning projects in Seymour, 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 Seymour, CT homeowners’ guide to air conditioning services

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