Is My Contractor Licensed in Connecticut?

Plumbers in Connecticut

Licensed by: Connecticut Department of Consumer Protection

Plumbing and pipefitting work requires an individual contractor or journeyperson license from the Department of Consumer Protection, and every applicant must pass an exam. Look up the plumber's name or license number in the state's eLicense lookup before work starts.

Look up a license  ·  Source: Connecticut DCP: Plumbing and Pipefitting Work Applications and Instructions  ·  21 plumbing companies in Connecticut on 1-800Deals

Electricians in Connecticut

Licensed by: Connecticut Department of Consumer Protection

Electrical work requires an individual contractor or journeyperson license from the Department of Consumer Protection, and every applicant must pass an exam. Check the electrician's license in the state's eLicense lookup before work starts.

Look up a license  ·  Source: Connecticut DCP: Electrical License Applications and Instructions  ·  2 electricians companies in Connecticut on 1-800Deals

HVAC (heating and air) in Connecticut

Licensed by: Connecticut Department of Consumer Protection

Heating, piping and cooling work requires an individual contractor or journeyperson license from the Department of Consumer Protection, with related licenses for sheet metal, hearth product and fuel gas work. Check the technician's license in the state's eLicense lookup, where Heating, Piping and Cooling is a listed license category.

Look up a license  ·  Source: Connecticut DCP: Heating, Cooling and Sheet Metal Work, Hearth Product Work, Fuel Gas Work Licenses  ·  6 hvac companies in Connecticut on 1-800Deals

Roofers in Connecticut

Licensed by: Connecticut Department of Consumer Protection (Home Improvement Contractor registration)

Under the Connecticut Home Improvement Act, anyone contracting with a consumer to do work on residential property, including roofs and siding, must register with the Department of Consumer Protection. Contracts under $200 are not covered (as of 2026). Search the contractor under Home Improvement Contractor in the state's eLicense lookup.

Look up a license  ·  Source: Connecticut DCP: Home Improvement Contractor  ·  1 roofing company in Connecticut on 1-800Deals

Pest control in Connecticut

Licensed by: Connecticut Department of Energy and Environmental Protection (DEEP)

Any business that applies pesticides for hire, including exterminators, must hold a Certificate of Registration from DEEP, renewed each year, in addition to individual applicator certification. Every company applying pesticides commercially must have a certified supervisory applicator. DEEP pesticide credentials can be checked in the state's eLicense lookup.

Look up a license  ·  Source: Connecticut DEEP: Pesticide Business Registration  ·  9 pest control companies in Connecticut on 1-800Deals

Garage door companies in Connecticut

Licensed by: Connecticut Department of Consumer Protection (Home Improvement Contractor registration)

Connecticut's Home Improvement Act lists garages and doors among the residential work that requires Home Improvement Contractor registration with the Department of Consumer Protection. Work covered by a trade license, such as electrical work, falls under that trade license instead, and contracts under $200 are not covered (as of 2026). Check the registration in the state's eLicense lookup.

Look up a license  ·  Source: Connecticut DCP: Home Improvement Contractor  ·  3 garage doors companies in Connecticut on 1-800Deals

Water damage restoration in Connecticut

Licensed by: Connecticut Department of Consumer Protection (Home Improvement Contractor registration)

For the repair side of a water damage job, permanent changes to residential property, including waterproofing, flooring and insulation, require Home Improvement Contractor registration with the Department of Consumer Protection. Plumbing or electrical repairs require the matching trade license. Check both in the state's eLicense lookup.

Look up a license  ·  Source: Connecticut DCP: Home Improvement Contractor  ·  41 water damage restoration companies in Connecticut on 1-800Deals

Frequently asked questions

Do plumbers need a state license in Connecticut?

Yes. Plumbing and pipefitting work requires a contractor or journeyperson license from the Department of Consumer Protection, and applicants must pass an exam.

How do I check a roofer's registration in Connecticut?

Roofers doing residential work must register as Home Improvement Contractors with the Department of Consumer Protection. Search the business in the state's eLicense lookup.

Who licenses pest control companies in Connecticut?

The Department of Energy and Environmental Protection. Businesses that apply pesticides for hire need an annual Certificate of Registration and a certified supervisory applicator.

This page is general information, not legal advice. 1-800Deals does not license, verify or endorse contractors. See all states: contractor licensing by state.