Long Island Contractor RegistryLicensed contractors · Nassau & Suffolk

Long Island, New York

Hiring guides for Long Island homeowners

Plain-English guides to checking licenses, contracts, deposits and permits in Nassau and Suffolk Counties.

How to Check a Contractor’s License in Suffolk CountyStep-by-step: verify a Suffolk County home improvement license online or by phone before you hire, and what to do if it is expired or missing.
How to Check a Contractor’s License in Nassau CountyVerify a Nassau County home improvement license online or by phone in minutes, and know what to look for before you hire a contractor.
What a New York Home Improvement Contract Must IncludeNew York law requires a written home improvement contract with specific terms. Here is the checklist, your 3-day right to cancel, and how deposits must be handled.
How to Hire a Contractor on Long Island: A Homeowner’s ChecklistA practical checklist for hiring a home improvement contractor in Nassau or Suffolk: licenses, insurance, quotes, contracts, permits and payments.
Who Issues Building Permits on Long Island?On Long Island, building permits come from your town, city or incorporated village, not the county. Here is how to find the right office for your address.