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Connecticut Licensed HVAC Contractor List

4,683 records in our covered Connecticut sources. Snapshot refreshed 2026-09-02. Build a roster for your territory, with phone and email where available. Credential requirements vary by trade and locality; review the state guidance below.

Connecticut Dept. of Consumer Protection (DCP) via data.ct.gov · Source snapshot
Get matched with hvac contractors in Connecticut — free →
See where hvac contractors appear in our Connecticut coverage →

Why verification matters

Ask how the system will be sized, what equipment is included and who handles electrical, refrigerant and permit requirements. Check the relevant credentials rather than assuming every state uses an HVAC license.

Projects for hvac contractors

AC repair and won't-cool callsFurnace and heat-pump replacementNew system install or zoningSeasonal tune-upsDuctwork and airflow fixes

For businesses

Buy the hvac contractors list in Connecticut, by territory

Public-source records for the selected trade and territory, enriched with phone, email and website where available. Review coverage and filters before buying. Draw your territory and pay for what you draw. Or build a list in two minutes →

StamfordBristolSheltonMilfordWallingfordEnfieldTorringtonKensingtonDanburyNew MilfordNorwalkBranfordWaterburyEllingtonWatertownOxfordBridgeportNorwichLisbonSouth WindsorWethersfieldNewtownCoventryStafford Springs
Tap the map to set your territory center.Two fingers to move & zoom

Radius

Statewide

Sources and limits

Where this list comes from

Our Connecticut roster uses covered records from Connecticut Dept. of Consumer Protection (DCP) via data.ct.gov. A current source check is still needed. Counts describe records in that snapshot, not every business operating in the state.

A license or registration record is a starting point. Credential types and scope differ by jurisdiction; a listing does not establish today's status or authorization for every type of work.

Before hiring, match the business and credential number with the relevant authority, check scope and current status, and confirm local permits. Contacts and Google ratings, when present, are separate enrichment rather than licensing evidence.

Data sources and quality standards →

Why ContractorRoster

Public records, organized for your territory.

Find hvac contractors for AC repair and won't-cool calls, furnace and heat-pump replacement, and related work. Choose your territory and review available contacts before buying. Check the source credential and project scope before hiring.

Connecticut: credentials and scope

Connecticut DCP registers home-improvement and new-home-construction contractors. Skilled work such as electrical, plumbing and HVAC can require a separate occupational license.

A home-improvement registration does not stand in for the trade credential. Search eLicense for the business and relevant individual or contractor license type.

Example: For a kitchen remodel that moves plumbing, check the home-improvement registration and who will perform the licensed plumbing work.

Choose home improvement, new construction and trade records deliberately
  1. Identify whether the proposal concerns home improvement or new-home construction and look for the relevant DCP registration. Do not assume these registration categories are interchangeable.
  2. For electrical, plumbing or HVAC work, use eLicense to check the relevant occupational credential as well. Match the business and the individual or contractor license type rather than accepting any result with the same name.
  3. Ask who is responsible for each regulated portion and discuss permits with the local office. Save unresolved questions for DCP rather than treating a registration as permission to do every skilled trade.

Example: a kitchen remodeling proposal includes moving a sink and adding circuits. A home-improvement registration addresses one part of the check; identify and check the plumbing and electrical credentials separately.

Scope guidance reviewed 2026-09-23. Recheck the official record before hiring.

Use cases

  • ✓Standing up an HVAC vendor roster for a new property in a new market
  • ✓Building a commercial bidder list before an RFP goes out Friday
  • ✓Finding licensed HVAC backup when a tenant emergency hits at 9pm Sunday
  • ✓Pulling equipment-rep outreach lists across an entire region in one CSV

Top cities for hvac contractors in Connecticut

1Stamford95
2Bristol93
3Milford90
4Shelton86
5Southington80
6Wallingford73
7Norwalk67
8Enfield65
9Danbury63
10Torrington63

4,683 records in our Connecticut hvac contractors snapshot, with contact fields where available. See the full Connecticut map →

Other trades in Connecticut

HVAC Contractors in other states

Common questions about hvac contractors in Connecticut

How do I research hvac contractors in Connecticut?

Start with the authority for the trade and project locality. Match the exact business and credential number, check current status and scope, then ask about local permits, insurance and comparable work. A directory listing or rating does not complete those checks.

How many hvac contractors does the Connecticut roster cover?

Our snapshot contains 4,683 records in this category. Records are not necessarily unique companies, and source coverage is not a census of every business in the state.

Where does this data come from?

Covered records come from Connecticut Dept. of Consumer Protection (DCP) via data.ct.gov. License and registration types differ; check the credential that applies to your project. Contacts and ratings are separate enrichment where available.

What contact information is included?

Available fields can include phone, email, website and Google ratings. Availability varies by record and selection; an unavailable field is not a zero, closure or negative finding. Review the selected inventory before purchase.

What will my list cost and when will it arrive?

The current purchase flow shows the price for your selected territory and filters before checkout. Larger website orders are typically delivered within one business day. Custom research scope and delivery timing are agreed before purchase.

Does this list establish current license status?

No. The recorded source refresh date is 2026-09-02. This is a snapshot rather than a live-status guarantee. Verify the appropriate official record before hiring.

From $19. Pay for what you draw

Draw your territory on the map; the price follows the size of the list. Pay once. Larger website orders typically arrive within one business day. No subscription, no account.

✓ Name, license #, expiration, verification URL✓ Phone, email, website where available✓ Google rating + review count, Yelp link✓ Territory intel: population, income, permits, storms✓ CSV ready for Excel or Google Sheets