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Commercial HVAC in Connecticut

84 local Commercial HVAC pros serving 34 cities across Connecticut. Looking for commercial hvac in Connecticut? HVAC Service Fast lists 84 local Commercial HVAC companies serving 34 cities — from East Norwalk and City of Milford (balance) to North Stamford. Compare Google ratings, check license details and contact companies directly — no middleman, no fees. Connecticut sees both hot summers (~75°F) and cold winters (~30°F), so equipment works year-round with… Read more

Compare Commercial HVAC Companies in Connecticut

Local contractors · pick a city to narrow down

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Modern Heating and Air Conditioning, LLC logo

Modern Heating and Air Conditioning, LLC

1015 Bridgeport Ave D, Milford, CT 06460, USA

American Standard Customer Care Dealer
Heating Services Commercial HVAC Energy Efficient Solutions
4.9 (862) · via Google

Website

Onofreo Home Comfort Systems LLC logo

Onofreo Home Comfort Systems LLC

280 Quarry Rd, Milford, CT 06460, USA

Bryant Factory Authorized Dealer
Energy Efficient Solutions AC Services Heating Services
4.9 (561) · via Google

Website

Twin Mechanical LLC logo

Twin Mechanical LLC

149 Bishop Ln, Madison, CT 06443, USA

Commercial HVAC Maintenance & Tune-up
4.9 (159) · via Google

Website

JP Dunn Heating & Cooling, LLC logo

JP Dunn Heating & Cooling, LLC

701 Northfield Rd, Northfield, CT 06778, USA

Bryant Dealer
Heating Services Commercial HVAC Heat Pumps
4.9 (72) · via Google

Website

About Commercial HVAC in Connecticut

Looking for commercial hvac in Connecticut? HVAC Service Fast lists 84 local Commercial HVAC companies serving 34 cities — from East Norwalk and City of Milford (balance) to North Stamford. Compare Google ratings, check license details and contact companies directly — no middleman, no fees.

Connecticut sees both hot summers (~75°F) and cold winters (~30°F), so equipment works year-round with little downtime. Typical jobs include commercial hvac, commercial air conditioning, rooftop unit and seasonal maintenance.

Contractor licensing in Connecticut runs through the Connecticut eLicense. Where a company lists a license number on its profile, you can verify it yourself on the official portal before you hire — a two-minute check that filters out most bad actors.

Commercial HVAC in Connecticut — FAQ

How many Commercial HVAC companies are listed in Connecticut?
HVAC Service Fast currently lists 84 Commercial HVAC companies across 34 cities in Connecticut. Every profile shows the data we have on file — ratings from public sources, phone, address and, where available, license numbers.
How do I verify a Commercial HVAC contractor's license in Connecticut?
Use the official Connecticut eLicense search. If a company shows a license number on its HVAC Service Fast profile, look it up there to confirm it is current before signing a contract.
How much does Commercial HVAC cost in Connecticut?
Prices vary with job scope, equipment and local labor rates, so treat any flat number online with caution. Our free HVAC cost guide explains typical price factors, and requesting two or three quotes from the companies listed here is the fastest way to see real local pricing.
Which Connecticut cities have the most Commercial HVAC pros?
The largest concentrations are in East Norwalk, City of Milford (balance), North Stamford, Norwalk, Stamford. Use the city filter to narrow this page, or open a city page for the full local list.

Commercial HVAC by City in Connecticut

Open a city page for the full local list of Commercial HVAC pros.