Connecticut HVAC license lookup: how to check and get a license
Connecticut HVAC license lookup: who issues HVAC contractor licenses (DCP), how to check one online, the license types, and 1,318 plumbing, heating and air-conditioning contractors by county.
Do HVAC contractors need a license in Connecticut?
| Who licenses them | Connecticut Department of Consumer Protection (DCP), Occupational and Professional Licensing Division |
|---|---|
| License types | S-2 Heating, Piping & Cooling Unlimited Journeyperson, Heating, piping & cooling contractor license, Limited licenses (e.g. B-2 burners, D-2 warm air/AC/refrigeration, G-2 gas piping and appliances) |
| When a license is required | License required for heating, piping and cooling work regardless of job size |
Connecticut licenses heating, piping and cooling work at the state level, with limited licenses for specific systems; journeypersons must work for a licensed contractor. Refrigerant work also requires federal EPA Section 608 certification.
How do you look up an HVAC contractor's license in Connecticut?
- Ask the HVAC contractor for the license number and the exact business name on the license.
- Open the Connecticut HVAC license lookup run by DCP.
- Search by license number first. A name search can return several people or companies with similar names.
- Check that the status is active or current, that the license type covers your job, and that the name matches the company on your contract.
- If something doesn't match, ask the HVAC contractor about it before you sign or pay a deposit, or contact DCP.
What HVAC licenses does Connecticut issue?
- S-2 Heating, Piping & Cooling Unlimited Journeyperson
- Heating, piping & cooling contractor license
- Limited licenses (e.g. B-2 burners, D-2 warm air/AC/refrigeration, G-2 gas piping and appliances)
How do you get a HVAC license in Connecticut?
Licenses are issued by the Connecticut Department of Consumer Protection (DCP), Occupational and Professional Licensing Division. Requirements such as experience, exams, insurance and fees change, so read the current rules on the official DCP source before you apply. Already licensed? List your business on Expert Helper to get matched with customers.
How many HVAC contractors are there in Connecticut?
The Census Bureau counted 1,318 plumbing, heating and air-conditioning contractors with employees in Connecticut in 2023. The counties with the most:
| Capitol Planning Region | 323 |
|---|---|
| Western Connecticut Planning Region | 263 |
| South Central Connecticut Planning Region | 196 |
| Naugatuck Valley Planning Region | 180 |
| Greater Bridgeport Planning Region | 98 |
| Southeastern Connecticut Planning Region | 95 |
| Northwest Hills Planning Region | 76 |
| Lower Connecticut River Valley Planning Region | 57 |
What do Connecticut homes mean for heating and cooling work?
The median home in Connecticut was built in 1967, 34% of households rent and 65% of homes are single-family houses. 36% of homes heat with utility gas and 18% with electricity, and 37% with fuel oil.
How do you choose an HVAC contractor in Connecticut?
- Check the state or local mechanical or HVAC license, and ask whether the technicians hold EPA 608 certification for refrigerant work.
- For a new system, ask for a load calculation (often called Manual J) rather than a size picked from square footage.
- Ask which rebates and tax credits apply to heat pumps and high-efficiency equipment, and whether the contractor files the paperwork.
- Compare quotes on the same equipment model numbers and efficiency ratings (SEER2, HSPF2, AFUE).
- Ask what the labor warranty covers, separately from the manufacturer's parts warranty.
HVAC Contractors in other states
Sources: Connecticut licensing agency (linked above); US Census Bureau County Business Patterns 2023 and ACS 2023 5-year estimates.