New England · 4 trades verified · checked 2026-10-20
Connecticut trade licenses
Electrician, Plumber, HVAC and General contractor credentials in Connecticut, from the issuing board's page or the statute: who issues each one, the levels, the time it takes and the exam.
- 1Electrician 6 years
- 2Plumber 2 years
- 3HVAC 2 years
- 4General contractor registration
| Trade | Issued by | Top credential | Time to top | Exam | Fees printed |
|---|---|---|---|---|---|
| Electrician | Connecticut Department of Consumer Protection | Unlimited Electrical Contractor | 6 years | Yes | No |
| Plumber | Connecticut Department of Consumer Protection | Unlimited Plumbing Contractor | 2 years after the prior level | Yes | No |
| HVAC | Connecticut Department of Consumer Protection | Unlimited Heating, Piping and Cooling Contractor | 2 years after the prior level | Yes | No |
| General contractor | Connecticut Department of Consumer Protection | Home Improvement Contractor registration | registration | No | No |
Electrician in Connecticut
Statewide license. Unlimited E-1 contractors may do all electrical work as defined in Conn. Gen. Stat. § 20-330; E-2 journeypersons do the same work only while employed by a licensed contractor. Unlimited Electrical Contractor: 6 years of experience at minimum, plus an exam.
Unlimited Electrical Journeyperson — 4 years, 720 classroom hours, exam. Unlimited Electrical Contractor — 6 years, exam. Out-of-state route: reviewed case by case under the source's rules.
What the top level asks for: Two years as an unlimited licensed journeyperson, or at least six years of equivalent experience and training.
Connecticut electrician details · Electrician in every state
Plumber in Connecticut
Statewide license. P-1 contractors may do all plumbing and piping work as defined in Conn. Gen. Stat. § 20-330; P-2 journeypersons do the same work only while employed by a licensed contractor. Unlimited Plumbing Contractor: 2 years of experience at minimum, plus an exam.
Unlimited Journeyperson Plumber — time not stated, exam. Unlimited Plumbing Contractor — 2 years after the prior level, exam. Out-of-state route: reviewed case by case under the source's rules.
What the top level asks for: Two years as an unlimited licensed journeyperson, or equivalent experience and training.
Connecticut plumber details · Plumber in every state
HVAC in Connecticut
Statewide heating, piping and cooling license. S-1 contractors may do all heating, piping and cooling work as defined in Conn. Gen. Stat. § 20-330; narrower D, B, G and S classes cover warm air and refrigeration, burners, gas, and smaller buildings. Unlimited Heating, Piping and Cooling Contractor: 2 years of experience at minimum, plus an exam.
Unlimited Heating, Piping and Cooling Journeyperson — time not stated, exam. Unlimited Heating, Piping and Cooling Contractor — 2 years after the prior level, exam. Out-of-state route: reviewed case by case under the source's rules.
What the top level asks for: Two years as a properly licensed journeyperson, or equivalent experience and training.
Connecticut HVAC details · HVAC in every state
General contractor in Connecticut
Registration, not a competency license. Under the Connecticut Home Improvement Act, an individual or business must register with DCP to contract with a consumer for work on residential property; work under $200 is excluded. Connecticut uses a home improvement contractor registration for general contractors, not a skills license.
Home Improvement Contractor registration — registration. No reciprocity partner is named in the source.
What the top level asks for: Register with the Department of Consumer Protection before contracting with a consumer for residential work of $200 or more. The application page states no exam or experience requirement.
Connecticut general contractor details · General contractor in every state
Moving to or from Connecticut
Electrician: Connecticut reviews out-of-state licenses without naming partners. Plumber: Connecticut reviews out-of-state licenses without naming partners. HVAC: Connecticut reviews out-of-state licenses without naming partners. General contractor: no route is named in the source. Conditions differ by board, so read the state page for each trade before relying on a partner list.
Nearby and comparable: Maine · Massachusetts · New Hampshire · Rhode Island · Vermont. Guides: how long each state takes · license or registration.
General information from the Connecticut sources on 2026-10-20, not legal advice. Each board is the authority; confirm before applying.