Best HVAC Contractors in Norwalk, CT

The highest-rated Heating & Air Conditioning companies out of 230 vetted & reviewed in the Norwalk area.

Astacio Plumbing & Heating & Air Condition

Astacio Plumbing & Heating & Air Condition

(27)
  • Technician
  • Job
  • Efficient
“Chris arrived on schedule, assessed the heating system and quickly diagnosed the problem. New heating hot water circulating pump was installed, The system is quite old and so Chris took extra care in removal and replacement of the pump in the existin...”
Licensed, BBB Rating: A+
Offers Financing Options
In Business Since 2008
Emergency Services
70 Fort Point St, Norwalk, CT
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Hellas Air Temp Inc

Hellas Air Temp Inc

(27)
Air-Conditioning Unit, Hvac Services, Heating Unit Installations
“Very pleased with the professionalism, tidiness, and conscientiousness of the technician. John even took extra time to help un-stick a panel that was painted shut accidentally, and didn't tear the paint. (And refused a tip.) Thanks for the great serv...”
Licensed, BBB Rating: A+
Free Initial Consultation
In Business Since 2010
Emergency Services
52 Connecticut Ave, Norwalk, CT
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Elm Plumbing & Heating

Elm Plumbing & Heating

(12)
Commercial Plumbing, Residential Plumbing, Heating Services
“Just had two faucets replaced - one in the bathroom and one in the kitchen. I'm very pleased with the service. Both faucets work great and look beautiful! Joe was very efficient and his work is high quality. The work was done in a timely fashion at a...”
Licensed, BBB Rating: A+
In Business Since 1995
Emergency Services
Accepts All Major Credit Cards
Serving Norwalk Area
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Simply Heating and Cooling Bedford

Simply Heating and Cooling Bedford

(30)
Air Conditioning Service, Chimney Services, Hvac Services
“Since many years ago, we have valued the incredibly useful services that this company has offered. Our tech was fantastic, and our most recent need was a check of our water heating system. Along with other techs, they went above and above to help. Th...”
Emergency Services
In Business Since 2022
Serving Norwalk Area
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Badaracco Plumbing & Heating LLC

Badaracco Plumbing & Heating LLC

(12)
  • Home
  • Responsive
“Tony and his team is fantastic. Got my Rheem tankless water heater replaced few months ago and wanted to leave a review for my great experience. Tony was very responsive and quickly sent out his technicians Greg and Ercides to my home the next day (I...”
Emergency Services
In Business Since 2011
345 Main Ave, Norwalk, CT
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East Coast Heating & Air Conditioning

East Coast Heating & Air Conditioning

(14)
AC Installation, AC Repair, Ductless
“Kevin, Sandy and the team were responsive, professional, and efficient. I needed two new A/C units replaced in the height of the summer heat, and in spite of the supply chain issues related to COVID, the team came through quickly. Later, when I thoug...”
Licensed
In Business Since 2007
Coupons & Offers
5 Silver St, Norwalk, CT
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MCK Heating and Cooling Llc

MCK Heating and Cooling Llc

(3)
“Chris and his team are not only the most professional and always on time , but make sure the Job is done with quality materials and pay close attention to detail..best in the business”
Coupons & Offers
In Business Since 2020
19 Sycamore St, Norwalk, CT
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L J Denner & Sons

L J Denner & Sons

(1)
“I have been using LJ Denner for 3 years, maintenance fix etc. They have always been responsive, very important in those winter cold months and common failures of an old HVAC system. They recently completed the installation of a new 5 ton HVAC syste...”
2 Wilton Ave, Norwalk, CT
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Comfort Masters

Comfort Masters

(30)
  • Work
  • Price
  • Projects
“I highly recommend Comfort Masters for every plumbing need. Chris is very easy to communicate with, responding promptly to phone calls and texts and arriving punctually for appointments. He is friendly and professional in all the dealings I have had...”
Accepts All Major Credit Cards
In Business Since 2016
Locally Owned & Operated
140 Bouton St. W, Stamford, CT,
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20/20 Air Mechanical Corporation

20/20 Air Mechanical Corporation

(26)
Financing Available, Air Conditioning, Upfront Pricing
“Dylan from 20/20 was incredibly helpful and diligent during his visit. We just bought a home and our first day in the house, the heat stopped working. 20/20 was the only company in the area who could come out in less than 24 hours and Dylan fixed the...”
Licensed
In Business Since 2007
Offers Financing Options
14 Wildman St, Danbury, CT
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Service Stars

Service Stars

(30)
  • Efficient
  • Inspection
  • Furnace
“Nothing like waking up on Christmas Eve with no heat or hot water and single digit temps outside. Called Service Stars, and Jeremy was out in less than 30 minutes! He was friendly and professional (as usual) and quickly resolved the issue for us. Ha...”
Accepts All Major Credit Cards
In Business Since 2010
345 Main St 2nd floor, Danbury, CT
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Around the Clock Air Conditioning & Heating

Around the Clock Air Conditioning & Heating

(29)
  • Efficient
  • Afternoon
  • Job
“Ilan is the most knowledgeable person I have encountered in HVAC. I particularly had a system that 5 other companies and individuals could not fix. Ilan was the only person who could solve the problem. He is also a NEST pro so if you would like to s...”
Emergency Services
In Business Since 2013
115 Colonial Rd, Stamford, CT
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Aquila Heating & Cooling

Aquila Heating & Cooling

(29)
  • Prices
  • Running
  • Work
“The service technician was on time and quickly diagnosed and fixed the problem - frozen system and a broken blower motor. I called and they showed up within 24 hours right before the July heatwave of 2022 hit us. Also, in 2008, after a lot of rese...”
Licensed, BBB Rating: A+
Coupons & Offers
Family Business
In Business Since 1989
32 Sugar Plum Lane, Fairfield, CT,
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Green Mechanicals Heating & Cooling LLC

Green Mechanicals Heating & Cooling LLC

(29)
  • Job
  • Pleasure
  • Call
“One of the hotest weeks of the summer my regular HVAC maintenance contractor came out to do a PM on my unit and found that the compressor was grounded. As a result I needed to get estimates for a new compressor, as well as, a new air handler, due to ...”
Licensed, BBB Rating: A+
In Business Since 2015
Free Initial Consultation
Emergency Services
37 Highview Ave, Stamford, CT
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New England Air Systems LLC

New England Air Systems LLC

(28)
Cooling, Heating, Comfort Controls
“Carlos and Bob are top notch. I called NEAS after buying a new house with a very old HVAC system. I wanted someone to go through the old AC units and see if they could be salvaged or not. These guys took their time, showed me everything they found an...”
Licensed, BBB Rating: A+
Family Business
In Business Since 1997
Offers Financing Options
26 Federal Rd, Danbury, CT
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Integrity Heating & Air Conditioning

Integrity Heating & Air Conditioning

(30)
AC Repair, Emergency Hvac Services, Heat Pump Rebate
“Telephone response time was fast and the appointment was kept as scheduled - in the midst of a high 90s heat wave. Brandon the technician was completely professional, explaining everything as he worked, triple checking his repairs and the system bef...”
Licensed, BBB Rating: A+
Free Initial Consultation
In Business Since 2001
Offers Financing Options
Serving Norwalk Area
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HVAC, Heating & AC Services in Norwalk, CT Cost Estimates

Minimum cost
$2007
Maximum cost
$12025
National Average
$6260
Avg Per Hour Rates
$167
$4297
$8297
Fair price range is based on 318 cost profiles
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Average Cost $6260
Minimum cost $2007
Maximum cost $12025
Avg Per Hour Rates $167

Typical range $4297 to $8297 is based on 318 cost profiles.

Why these companies made our list

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