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Connecticut contractor licenses
Connecticut HVAC contractors
The DCP file dated Oct 31, 2026 lists 3,705 active Connecticut HVAC licenses. 6 were issued in the last 30 days.1
- Active licenses
- 3,705
- Issued, last 30 days
- 6
- Issued, last 12 months
- 144
- Licensed 10+ years
- 73%
Which Connecticut license classes count as HVAC work?
| Class | Active |
|---|---|
| HTG-S1 Heating, Piping & Cooling Unlimited Contractor | 2,071 |
| HTG-D1 Heating, Piping & Cooling Limited Contractor | 542 |
| HTG-S7 Heating, Piping & Cooling Limited Contractor | 325 |
| HTG-S3 Heating, Piping & Cooling Limited Contractor | 281 |
| HTG-G1 Heating, Piping & Cooling Limited Contractor | 140 |
| HTG-S9 Heating, Piping & Cooling Limited Contractor | 91 |
| HTG-B1 Heating, Piping & Cooling Limited Contractor | 87 |
| HTG-ST1 Heating, Piping & Cooling Limited Contractor | 55 |
| HTG-S5 Heating, Piping & Cooling Limited Contractor | 37 |
| HTG-D3 Heating, Piping & Cooling Limited Contractor | 33 |
| HTG-B3 Heating, Piping & Cooling Limited Contractor | 18 |
| HTG-G9 Heating, Piping & Cooling Limited Contractor | 9 |
| HTG-HPG1 Heating, Piping & Cooling Limited Contractor | 8 |
| HTG-BM1 Heating, Piping & Cooling Limited Contractor | 5 |
Check a Connecticut license
Sources
- DCP state licenses and credentials (data.ct.gov, Oct 31, 2026)
- Department of Consumer Protection (DCP) (portal.ct.gov)