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Connecticut HVAC Contractors

Looking for hvac contractors in Connecticut? Below are 10 top-rated hvac contractors serving Connecticut in 2026 — every one rated 4.0+ stars with 10 or more verified Google reviews. Compare ratings and review counts, then contact them directly by phone or website. No middleman, no lead fees.

Listings are sourced from public Google Business Profiles and sorted by rating. Are you a Connecticut hvac contractor? Add your business free below.

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1

Murphy Heating & Cooling

8 S Main St, New Milford, CT 06776, USA

5.0star

1,017 reviews

Reviews via Google

phone(860) 799-2300
2

CNM Heating Cooling Piping LLC

699 Storrs Rd, Storrs, CT 06268, USA

5.0star

186 reviews

Reviews via Google

phone(860) 891-3073
3

Innovative Heating & Cooling LLC

229 Pepes Farm Rd, Milford, CT 06460, USA

5.0star

42 reviews

Reviews via Google

phone(203) 283-7272
4

Reliable Heating & Air Conditioning Co

200 Green Hill Rd, Killingworth, CT 06419, USA

5.0star

13 reviews

Reviews via Google

phone(860) 663-6000
5

Absolute Air Services, LLC

1116 Portland-Cobalt Rd, Portland, CT 06480, USA

4.9star

1,110 reviews

Reviews via Google

phone(860) 378-2318
6

Modern Heating and Air Conditioning, LLC

1015 Bridgeport Ave D, Milford, CT 06460, USA

4.9star

832 reviews

Reviews via Google

phone(203) 295-7549
7

American Heating Air Conditioning Service

64 Westridge Dr, Waterbury, CT 06708, USA

4.9star

397 reviews

Reviews via Google

phone(203) 756-5040
8

Hefferon Heating & Cooling LLC

37A Padanaram Rd, Danbury, CT 06811, USA

4.9star

386 reviews

Reviews via Google

phone(203) 790-8826
9

M & M Heating & Cooling, LLC

108 River St, Bridgeport, CT 06604, USA

4.9star

226 reviews

Reviews via Google

phone(203) 364-2571
10

Hometown Heating & Cooling LLC

10 a Herman Dr, Simsbury, CT 06070, USA

4.9star

97 reviews

Reviews via Google

phone(860) 387-9533

Data sourced from Google Places. Updated April 12, 2026.

Hiring an HVAC Contractor in Connecticut

Buildermuse currently lists 10 hvac contractors in Connecticut, averaging 4.9 stars across 4,306 verified Google reviews. That is an unusually strong field — when nearly every firm clears 4.8 stars, response time and availability become the real differentiators, so call two or three rather than only the top result. Most of the crews above operate out of Milford, Bridgeport, and Danbury.

Connecticut requires registration (not licensing) for home improvement contractors. No exam is required for general registration. Electrical and plumbing trades require separate licenses with exams. Confirm credentials with the Connecticut Department of Consumer Protection at (860) 713-6135 before work begins. Licenses renew on an annual cycle (registration date). Expect a $230 state application fee. At a minimum, ask for proof of $100,000 in general liability coverage and active workers' comp.

Labor is the biggest line item on most bids, and the Connecticut market sets the floor: construction workers here average $40.33 an hour — about $83,876 a year — across 65,672 workers statewide, per Bureau of Labor Statistics data. That puts Connecticut among the pricier construction labor markets in the country, so expect quotes to reflect it.

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