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Best HVAC in Connecticut (2026)

176 businesses found · Ranked by quality, not ads

Find top-rated hvac businesses in Connecticut. Every business is ranked by Quality Score — our quality metric based on responsiveness, data completeness, and verified reviews. Not who pays the most.

Edgerton, Inc.

Monroe, CT

HVAC

★ 4.8(555 reviews)

Quality Score: 36.3
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X-treme Temp Heating & Cooling, LLC

Wallingford, CT

HVAC

★ 4.9(275 reviews)

Quality Score: 35.6
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Degree Heating and Cooling

New Milford, CT

HVAC

★ 4.7(454 reviews)

Quality Score: 35.6
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East Coast Mechanical, Inc. Heating & Cooling

Cheshire, CT

HVAC

★ 4.8(268 reviews)

Quality Score: 35.2
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Jennings Oil and Propane

Danbury, CT

HVAC

★ 4.8(175 reviews)

Quality Score: 34.5
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YBC Air LLC

Bridgeport, CT

HVAC

★ 5.0(100 reviews)

Quality Score: 34.4
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Around the Clock Air Conditioning & Heating, Inc.

Stamford, CT

HVAC

★ 5.0(94 reviews)

Quality Score: 34.3
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Hometown Heating & Cooling LLC

Simsbury, CT

HVAC

★ 4.9(90 reviews)

Quality Score: 33.8
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J.M. Curtis Energy Solutions

Bloomfield, CT

HVAC

★ 4.9(68 reviews)

Quality Score: 33.3
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Home Comfort Heating & Cooling

East Haven, CT

HVAC

★ 4.7(74 reviews)

Quality Score: 32.8
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Innovative Heating & Cooling LLC

Milford, CT

HVAC

★ 5.0(42 reviews)

Quality Score: 32.8
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Home Heating & Air Conditioning, LLC

West Haven, CT

HVAC

★ 5.0(35 reviews)

Quality Score: 32.4
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Dominick's Heating and Cooling, LLC

Norwalk, CT

HVAC

★ 5.0(6 reviews)

Quality Score: 28.6
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Gold AC & Heating Services

West Haven, CT

HVAC

★ 5.0(1 review)

Quality Score: 25.1
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One Hour Heating & Air Conditioning® of Bristol

Terryville, CT

HVAC

★ 4.9(692 reviews)

Quality Score: 16
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Viglione Heating & Cooling

East Haven, CT

HVAC

★ 4.3(124 reviews)

Quality Score: 16
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Dependable Heating & Cooling, LLC

North Branford, CT

HVAC

★ 4.1(8 reviews)

Quality Score: 16
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Evergreen Heating & Cooling, LLC.

Hamden, CT

HVAC

★ 5.0(18 reviews)

Quality Score: 16
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C&C Service

Stamford, CT

HVAC

★ 4.4(45 reviews)

Quality Score: 16
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MCN Distributors

North Haven, CT

HVAC

★ 4.7(6 reviews)

Quality Score: 16
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Hellas Air Temp Inc

Norwalk, CT

HVAC

★ 4.8(543 reviews)

Quality Score: 16
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CISCO HEATING AND COOLING PROS LLC

West Haven, CT

HVAC

★ 4.9(144 reviews)

Quality Score: 16
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Hands On Heating Inc.

Stratford, CT

HVAC

★ 4.9(60 reviews)

Quality Score: 16
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JLP Heating & Cooling

Norwalk, CT

HVAC

★ 5.0(23 reviews)

Quality Score: 16
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A.E. Olsen Co., Inc. Service America

Southbury, CT

HVAC

★ 4.8(170 reviews)

Quality Score: 16
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MCK Heating and cooling llc

Norwalk, CT

HVAC

★ 4.7(11 reviews)

Quality Score: 16
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Ugo DiGrazia Air Conditioning and Heating, Inc.

Hartford, CT

HVAC

★ 4.9(361 reviews)

Quality Score: 16
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Silver City Furnace Company

Meriden, CT

HVAC

★ 4.2(25 reviews)

Quality Score: 16
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Steamatic of Connecticut

North Haven, CT

HVAC

★ 4.9(188 reviews)

Quality Score: 16
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Ray's Air Systems LLC

West Haven, CT

HVAC

★ 5.0(1 review)

Quality Score: 16
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Air Comfort Systems Inc

Wallingford, CT

HVAC

★ 5.0(1 review)

Quality Score: 16
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Tyler Heating, Air Conditioning, Refrigeration LLC

Stratford, CT

HVAC

★ 4.8(579 reviews)

Quality Score: 16
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AIRplus Heating & Cooling LLC

Bridgeport, CT

HVAC

★ 5.0(42 reviews)

Quality Score: 16
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One Hour Heating & Air Conditioning® of Shelton

Derby, CT

HVAC

★ 4.5(54 reviews)

Quality Score: 16
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Eminent Mechanical

Meriden, CT

HVAC

★ 5.0(11 reviews)

Quality Score: 16
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Absolute Air Services, LLC

Portland, CT

HVAC

★ 4.9(1044 reviews)

Quality Score: 16
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Central Air, LLC.

Brookfield, CT

HVAC

★ 4.9(193 reviews)

Quality Score: 16
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20/20 Air Mechanical Corporation

Danbury, CT

HVAC

★ 4.8(252 reviews)

Quality Score: 16
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ENCON Heating and Air Conditioning

Stamford, CT

HVAC

★ 4.9(218 reviews)

Quality Score: 16
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Dynamic Heating, Cooling & Geothermal

Plainville, CT

HVAC

★ 4.8(265 reviews)

Quality Score: 16
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American Heating Air Conditioning Service

Waterbury, CT

HVAC

★ 4.9(380 reviews)

Quality Score: 16
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Reliable Heating LLC

Brookfield, CT

HVAC

★ 4.9(82 reviews)

Quality Score: 16
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RED TEAM Air Duct Cleaning

Shelton, CT

HVAC

★ 5.0(67 reviews)

Quality Score: 16
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Controlled Temperatures INC

Stamford, CT

HVAC

★ 4.9(23 reviews)

Quality Score: 16
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R & B Air Conditioning & Heating

Guilford, CT

HVAC

★ 4.7(48 reviews)

Quality Score: 16
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Saucier Mechanical Services

Plantsville, CT

HVAC

★ 4.7(70 reviews)

Quality Score: 16
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Future Mechanical LLC

New Britain, CT

HVAC

★ 4.7(27 reviews)

Quality Score: 16
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Sippin Energy Products

Monroe, CT

HVAC

★ 4.9(2602 reviews)

Quality Score: 16
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Glasco Heating & Air Conditioning

South Windsor, CT

HVAC

★ 4.7(1146 reviews)

Quality Score: 16
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Murphy Heating & Cooling LLC

New Milford, CT

HVAC

★ 5.0(979 reviews)

Quality Score: 16
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