How-To7 min read

Contractor License Verification in NY: How to Check Before You Hire

How to verify a contractor's license in New York and Connecticut. Specific databases, phone numbers, and what each type of license actually means for homeowners in Westchester and Fairfield County.

AC
Alex Colombo
Founder, Trusted Local Contractors · January 30, 2026

New York's Licensing System Is More Confusing Than It Should Be

New York does not have a single statewide contractor license. That confuses a lot of homeowners. In Connecticut, every home improvement contractor needs a state HIC license. In New York, it depends on the trade, the county, and sometimes the individual town.

The result is that 'licensed and insured' can mean different things depending on where you are and who you are hiring. This guide covers what the licenses actually are, how to check them, and what to do if a contractor cannot prove their credentials.

What New York State Requires

At the state level, New York only licenses a handful of trades:

Electricians - Must hold a state or local license. In Westchester, electricians are licensed through individual municipalities. New York City has its own licensing through the Department of Buildings.

Plumbers - Licensed at the county or municipal level. Westchester County has a Board of Plumbing Examiners that issues master plumber licenses. Every town may have additional registration requirements.

General contractors - No state license required. New York is one of the few states with no statewide general contractor license. Instead, counties and municipalities handle registration.

HVAC technicians - No state license required for the mechanical work itself, but EPA Section 608 certification is federally required for handling refrigerants.

Roofers, painters, landscapers, and most other trades - No state license required. Local registration may apply.

This means that checking a contractor's credentials requires knowing which level of government to contact.

How to Check in Westchester County

Westchester County requires all residential contractors to register as Home Improvement Contractors with the Department of Consumer Protection. This is the primary credential to verify.

Westchester County Department of Consumer Protection - Phone: (914) 995-2155 - Online: https://consumer.westchestergov.com/trade-licenses - What to ask: 'Is [company name or registration number] an active registered Home Improvement Contractor?'

For plumbers specifically: - Westchester County Board of Plumbing Examiners handles plumbing licenses - Contact through the consumer protection office above

For electricians, check with the individual town building department where the work will be done. Most Westchester towns maintain their own electrician licensing.

Important: The Westchester HIC registration is not a test of skill or competency. It means the contractor has filed paperwork, paid a fee, and agreed to follow consumer protection rules. It is a starting point, not a guarantee of quality.

How to Check in Connecticut

Connecticut has a more straightforward system. The state requires a Home Improvement Contractor (HIC) license for anyone doing residential work over $200.

Connecticut Department of Consumer Protection - Online verification: https://www.elicense.ct.gov/ - Phone: (860) 713-6100 - Search by: Name, license number, or business name

The CT HIC license requires a $20,000 surety bond and proof of insurance. It is a stronger credential than NY's county-level registration because it includes financial backing.

Electricians in Connecticut need an E-1 (Journeyman) or E-2 (Contractor) license. Plumbers need a P-1 (Journeyman) or P-2 (Contractor) license. All verifiable through the same eLicense portal.

If you are in Fairfield County, check the HIC license first. If the contractor says they are 'licensed in New York,' that does not cover work in Connecticut. They need a CT HIC license for CT work, period.

Verifying Insurance (The Part People Skip)

Important

A license without insurance is meaningless for your protection. Here is what to verify:

General Liability Insurance - Covers damage to your property caused by the contractor's work. Minimum should be $1,000,000 per occurrence. Ask for a Certificate of Insurance (COI) and call the insurance company to confirm it is active.

Workers' Compensation Insurance - Covers injuries to the contractor's employees while working on your property. Required in New York for any employer. If a contractor does not carry workers' comp and a worker gets hurt on your property, you could be liable.

How to verify: Ask for the COI. It is a standard one-page document that lists the insurance company, policy number, coverage amounts, and expiration date. Then call the insurance company's verification line (the number is on the COI) and confirm the policy is current.

Do not accept a verbal 'yes, we are insured.' Do not accept a photocopy of an expired certificate. Do not accept 'I will get that to you later.' If they cannot produce a current COI within 24 hours, find someone else.

Warning Signs of Unlicensed or Uninsured Contractors

After vetting hundreds of contractors across the tri-state area, these are the patterns that indicate someone is not operating legitimately:

- Cash-only payments with no receipt or contract - No physical business address (just a phone number or P.O. box) - Cannot produce a license or registration number when asked - Gets defensive or evasive about insurance questions - Offers a 'discount' for not pulling a permit - No reviews or online presence whatsoever - Out-of-state plates on the work truck (not always a red flag, but worth noting) - Quote is dramatically lower than every other bid (cutting corners on insurance and licensing is how they undercut)

None of these alone is proof of a problem, but two or more together should make you pause.

Quick Reference: Where to Verify

Use this table to find the right verification resource based on where the work is being done and what type of contractor you are hiring.

What to CheckWhere to CheckContact
Westchester HIC registrationWestchester County Consumer Protection(914) 995-2155 / consumer.westchestergov.com
Westchester plumbing licenseWestchester Board of Plumbing Examiners(914) 995-2155
CT HIC licenseCT Dept of Consumer Protection(860) 713-6100 / elicense.ct.gov
CT electrician licenseCT DCP eLicense Portalelicense.ct.gov
CT plumbing licenseCT DCP eLicense Portalelicense.ct.gov
Rockland County contractorRockland County Consumer Protection(845) 364-2669
Putnam County contractorPutnam County Consumer Affairs(845) 808-1617
Better Business BureauBBB of NY (NY) / BBB of CTbbb.org
Insurance verificationCall the insurer listed on COINumber on Certificate of Insurance

The Bottom Line

Key Takeaway

Verifying a contractor's license and insurance takes 10 minutes. Dealing with an unlicensed contractor's botched work takes months and thousands of dollars.

Always ask for: the license or registration number, a current Certificate of Insurance, and references from recent local work. Verify each one yourself. A good contractor will not be offended. They are used to it.

If a contractor cannot or will not provide credentials, that tells you everything you need to know.

AC
Alex Colombo
Founder, Trusted Local Contractors

Alex runs Trusted Local Contractors, connecting homeowners with vetted service professionals across the tri-state area. He researched the licensing requirements across NY and CT to write this guide.