Updated April 2026
Connecticut Contractor Licensing — Quick Facts
- State License Required?
- Registration (not full license)
- Licensing Board
- Department of Consumer Protection (DCP)
- Minimum Project Threshold
- All new residential construction and alterations
- Phone
- (860) 713-6000
- Address
- 450 Columbus Boulevard, Suite 901, Hartford, CT 06103
- DCP.complaints@ct.gov
- Online License Lookup
- Search licenses online →
Registration system rather than full licensing. Separate registrations for Home Improvement Contractor (HIC) and New Home Construction Contractor (NHCC). $100 annual Guaranty Fund fee. Specialty trades (electricians, plumbers) require separate licenses.
Connecticut Contractor License Types
| License Type | Application Fee | Annual Renewal | Bond |
|---|---|---|---|
| Home Improvement Contractor (HIC) Required for any contractor performing remodeling, repairs, or alterations to existing residential properties. Registration number must appear in all contracts and advertising. | $220 | $220 | No (unless disciplinary) |
| New Home Construction (NHC) Required for contractors building new residential homes from the ground up. | $360 | N/A | No (unless disciplinary) |
| Major Contractor (MCO) For large-scale commercial and public works projects. No education requirements — approval is reference-based. | $500 | $500 | No (unless disciplinary) |
Connecticut uses a registration system — not a traditional licensing exam — for contractors. Home Improvement Contractors (HIC), New Home Construction Contractors (NHC), and Major Contractors (MCO) must register with the Department of Consumer Protection (DCP). Specialty trades like electrical, plumbing, heating/piping/cooling, and fire protection require separate state licenses with exams.
Specialty Trade Licenses (Separate from Contractor Registration)
- Electrical (E-1, E-2, unlimited, limited licenses)
- Plumbing (P-1, P-2, journeyman, apprentice)
- Heating/Piping/Cooling (HPC — S-1, S-2 and sub-categories)
- Fire Protection Sprinkler
Specialty trades require separate state licenses with examinations, administered through the DCP.
Step 1: Get the Contractor's Registration Number
In Connecticut, Home Improvement Contractors are legally required to display their HIC registration number on all contracts, advertisements, business cards, and vehicles. If a contractor cannot or will not provide their registration number, do not hire them — performing home improvement work without valid registration is a criminal offense in Connecticut.
Step 2: Look Up the Registration Online
Visit the Connecticut eLicense portal to search by contractor name, business name, or registration number. The lookup shows registration status, type (HIC, NHC, or MCO), expiration date, and any disciplinary actions.
Step 3: Verify Insurance Coverage
Connecticut requires HIC and NHC registrants to carry a minimum of $20,000 in general liability insurance. Contractors with one or more employees must also carry workers' compensation insurance. Ask for current certificates of insurance and verify the policies are active.
- General liability insurance: $20,000 minimum (required for HIC and NHC)
- Workers' compensation: required if the contractor has any employees
- Request certificates of insurance before signing any contract
Step 4: Check Complaint and Disciplinary History
Contact the Department of Consumer Protection at (860) 713-6300 or search the eLicense portal. Contractors required to post a $10,000 bond have likely had past complaints. Check for suspensions, revocations, or pending actions.
Step 5: Review the Contract Before Signing
Connecticut law requires specific protections in home improvement contracts. Before signing, confirm the contract includes the contractor's HIC registration number, a notice of your 3 business day cancellation right, a detailed scope of work with materials specified, the total price and payment schedule, and estimated start and completion dates.
Connecticut Contractor Insurance Requirements
| Insurance Type | Requirement |
|---|---|
| General Liability | $20,000 minimum for HIC and NHC registrations |
| Workers' Compensation | Required for contractors with 1 or more employees |
Connecticut Contractor Bond Requirements
No bond is required for initial registration. However, the DCP can require a $10,000 surety bond as a disciplinary measure against contractors with complaints or violations.
Connecticut Consumer Protections for Home Improvement
Connecticut law provides several important protections for homeowners hiring contractors:
- Homeowners have a 3 business day right to cancel any home improvement contract — this must be disclosed in the contract.
- The HIC registration number must appear in all contracts and advertising. Contracts without the number may be unenforceable.
- The Home Improvement Guaranty Fund (funded by a $100 annual fee per contractor) provides a consumer recovery fund for damages caused by registered contractors.
- Unregistered contractors cannot legally enforce a contract or file a mechanics lien in Connecticut.
What Happens if You Hire an Unlicensed Contractor?
Hiring an unlicensed contractor in Connecticut puts you at risk:
- The contractor cannot be held accountable through the DCP's complaint and disciplinary process
- You lose access to the Home Improvement Guaranty Fund — a recovery fund for consumers harmed by registered contractors
- The contractor cannot legally enforce the contract against you
- The contractor cannot file a mechanics lien against your property
- Your homeowner's insurance may deny claims for work done by unregistered contractors
- Unpermitted or uninspected work can create problems when selling your home
How to Report an Unlicensed Contractor in Connecticut
Report unregistered contractors to the Department of Consumer Protection. Performing home improvement work without valid HIC or NHC registration is a criminal offense in Connecticut, carrying fines and potential imprisonment.
- Online: portal.ct.gov/dcp
- Phone: (860) 713-6300 or 1-800-842-2649
- Email: DCP.complaints@ct.gov
How to File a Complaint Against a Registered Contractor in Connecticut
If you have a dispute with a registered contractor in Connecticut, you can file a complaint with the Department of Consumer Protection. DCP investigates complaints on behalf of the state and has authority to impose fines, require surety bonds, suspend or revoke registrations, and refer cases for criminal prosecution.
You can file a complaint by:
- Online: File at portal.ct.gov/dcp
- Email: DCP.complaints@ct.gov
- Phone: (860) 713-6300 or toll-free 1-800-842-2649
DCP represents the state, not individual consumers. For financial recovery, you may also file a claim with the Home Improvement Guaranty Fund if the contractor is registered.
Frequently Asked Questions: Connecticut Contractor Licensing
Does Connecticut require a contractor license?
Connecticut uses a registration system rather than a traditional license. Home Improvement Contractors (HIC), New Home Construction Contractors (NHC), and Major Contractors (MCO) must register with the Department of Consumer Protection. There is no trade exam for HIC or NHC — but specialty trades like electrical, plumbing, and HVAC require separate state licenses with exams.
How do I look up a contractor's registration in Connecticut?
Visit the Connecticut eLicense portal at www.elicense.ct.gov/lookup/licenselookup.aspx. Search by name, business name, or registration number to verify active status and check for disciplinary actions.
What is the difference between HIC, NHC, and MCO in Connecticut?
HIC (Home Improvement Contractor) covers remodeling, repairs, and alterations to existing homes — this is the most common registration type. NHC (New Home Construction) is for building new residential homes. MCO (Major Contractor) covers large-scale commercial and public works projects. Each has separate registration requirements and fees.
Do Connecticut contractors need a surety bond?
No bond is required for initial registration. However, the Department of Consumer Protection can require a $10,000 surety bond as a disciplinary measure against contractors with complaints or violations.
What insurance must Connecticut contractors carry?
HIC and NHC registrants must carry a minimum of $20,000 in general liability insurance. Contractors with one or more employees must also carry workers' compensation insurance. Ask for certificates before hiring.
Can I cancel a home improvement contract in Connecticut?
Yes. Connecticut law gives homeowners a 3 business day right to cancel any home improvement contract. This cancellation right must be disclosed in the contract itself. The cancellation period starts when you receive the signed contract.
How do I file a complaint against a Connecticut contractor?
File a complaint with the Department of Consumer Protection: online at portal.ct.gov/dcp, by email at DCP.complaints@ct.gov, or by phone at (860) 713-6300 (toll-free 1-800-842-2649). DCP investigates on behalf of the state and can impose fines, require bonds, or revoke registrations.
What happens if I hire an unregistered contractor in Connecticut?
An unregistered contractor cannot legally enforce the contract or file a mechanics lien against your property. You also lose access to the Home Improvement Guaranty Fund, which is a consumer recovery fund. Performing unregistered home improvement work is a criminal offense in Connecticut.
How much does it cost to register as a contractor in Connecticut?
Home Improvement Contractor (HIC): $220 application + $220 renewal. New Home Construction (NHC): $360 initial registration. Major Contractor (MCO): $500 application + $500 renewal. All contractors also pay a $100 annual Home Improvement Guaranty Fund fee.
Other States
Looking up a contractor in a different state? Visit our state-by-state contractor license lookup page to find the right verification tool for your state.