§ 01
How it works
The Connecticut licensing system in plain English
Connecticut relies on statewide regulation for many home improvement and trade categories. Depending on the work, the contractor may hold a registration, a trade license, or both. That distinction matters because a home improvement registration is not the same thing as an electrical, plumbing, or HVAC credential. Homeowners should verify the general home improvement authority and then separately check any trade licenses tied to the proposal.
§ 03
What to verify
Before you sign anything
Use the DCP verification portal to search by business name, individual name, or credential number. Confirm the credential is active and review the credential type so you know whether you are looking at a home improvement registration or a licensed trade. Compare the legal name and address to the contract exactly. If the job includes major mechanical or electrical work, verify those trades separately in the same state system.
§ 04
Homeowner tips
Practical guidance for Connecticut
- 01 Ask the contractor which Connecticut credential covers the contract: home improvement registration, trade license, or both.
- 02 Do not assume a salesperson's card proves the company is properly registered; verify the business entity itself.
- 03 For basement finishing and additions, check whether the proposal includes trade work that needs separate licensed professionals.
- 04 If the company uses a parent brand and a local subsidiary, make sure the subsidiary on your contract is the one in DCP records.
- 05 Use the state lookup before paying a deposit, not after the contract is already signed.
§ 05
Frequently asked
Connecticut-specific licensing questions
01 What is contractor registration in Connecticut and how does it differ from a license? ▸
Connecticut requires home improvement contractors to register with the Department of Consumer Protection (DCP) under the Home Improvement Act (Conn. Gen. Stat. §20-417a et seq.) rather than obtain an exam-based license. Registration confirms the contractor has filed with the state and carries required insurance, but does not verify trade competency. New home construction contractors must separately register under CGS §20-417b. Always verify registration at portal.ct.gov/dcp before hiring.
02 What work requires a registered contractor in Connecticut? ▸
Under CGS §20-417b, all contractors performing home improvement work on residential property valued at $200 or more must be registered with DCP as a Home Improvement Contractor (HIC). New construction of one- to four-family dwellings requires a separate New Home Construction Contractor (NHCC) registration. Specialty trades — electrical (CGS §20-330), plumbing, and HVAC — are separately licensed by DCP regardless of project value.
03 How do I verify a contractor's registration in Connecticut? ▸
Verify registration at the DCP eLicense portal at portal.ct.gov/dcp/verify-a-license. Enter the contractor's name or registration number and confirm the registration is Active and not expired or revoked. Confirm whether the contractor holds an HIC registration, NHCC registration, or both — the type must match your project. Also verify that specialty trade subcontractors carry active DCP licenses.
04 What happens if a contractor is unregistered in Connecticut? ▸
Under CGS §20-427, an unregistered contractor cannot enforce a home improvement contract or collect payment in Connecticut courts, and DCP can impose civil fines up to $2,500 per violation. Homeowners who hire an unregistered contractor cannot access the Connecticut Home Improvement Guaranty Fund (CGS §20-432), which provides up to $15,000 for homeowners harmed by registered contractors.
05 What insurance and bond does a registered contractor need in Connecticut? ▸
Connecticut Home Improvement Contractors must carry general liability insurance of at least $500,000 per occurrence and $500,000 aggregate. Workers' compensation is required under CGS §31-275 for any contractor with employees. There is no statewide mandatory surety bond for HIC registration, but the contractor must contribute to the Home Improvement Guaranty Fund. Verify insurance directly with the issuer before any work begins.
06 Does Connecticut require workers' compensation for contractors? ▸
Yes. Connecticut requires workers' compensation for any employer with one or more employees under CGS §31-275. Even a single employee triggers the coverage requirement. If a registered contractor's employee is injured on your property without coverage, you may face liability as a property owner. Always require a certificate of workers' compensation insurance before any work begins.
07 Can I do my own home improvement work without a registered contractor in Connecticut? ▸
Yes. The Connecticut Home Improvement Act does not apply to homeowners performing work on their own principal residence. However, the exemption does not cover specialty trade work — electrical work requires a CT-licensed electrician, and plumbing and HVAC must be performed by DCP-licensed tradespeople under CGS §20-330, even on owner-occupied properties.
08 How do I file a complaint against a contractor in Connecticut? ▸
File a complaint with the Connecticut Department of Consumer Protection at ct.gov/dcp. DCP investigates violations of the Home Improvement Act and can revoke registrations, impose fines, and facilitate Guaranty Fund claims. For consumer fraud, contact the Connecticut Attorney General at ct.gov/ag. Small claims court handles disputes up to $5,000.
state Connecticut agency Department of Consumer Protection eLicense tier 2
Department of Consumer Protection eLicense is the official source for contractor licensing information in Connecticut. Always verify a contractor's license before hiring. Jaspector is not affiliated with Department of Consumer Protection eLicense; this page is informational guidance only.