Start with the credential that applies to the work and the place where it will happen. In New York, the business name, credential type and project scope matter as much as the status label. This guide helps you make those checks; it does not determine eligibility for a specific contract.
What to check in New York
New York contractor verification depends on locality and trade. NYC DOB issues trade licenses and general-contractor registrations; NYC DCWP separately licenses home-improvement contractors.
A NYC general-contractor registration is not a statewide general-contractor license. ContractorRoster's New York sources include selected municipal records, so a missing result is not proof that a contractor elsewhere in New York lacks a required credential.
NYC DOB contractors — DOB licensing and registration roles.
NYC home-improvement license checklist — DCWP home-improvement licensing.
Distinguish NYC home-improvement licensing from DOB records
- Identify the actual municipality before searching. Our selected municipal records do not constitute a statewide New York contractor license system.
- For NYC home-improvement work, check DCWP’s home-improvement contractor requirements and the contracting business. Separately identify DOB trade licenses or registrations relevant to the proposed work.
- Ask for the credentials of the electrical or plumbing contractor where those portions are included. A DOB general-contractor registration and a DCWP home-improvement license answer different questions; neither should be renamed as the other in your notes.
Example: a Queens renovation proposal lists a general-contractor registration. Ask whether the business also needs a DCWP home-improvement license and who will perform regulated trades, instead of stopping at the first matching NYC record.
Check the business, credential and work together
Open NYC DOB License Lookup. For a trade or locality outside that service's coverage, use the authority identified above. Search the exact credential number when you have it, then compare the holder and business name with the written proposal. Use a name search as a cross-check; similar names can belong to different businesses.
Record the credential type, current status, expiration date and classification or endorsement where the authority publishes them. Check the business–qualifier relationship when applicable. If a field is absent, ask the authority; do not treat a blank as confirmation.
Example: For a NYC home renovation, check whether the business needs a DCWP home-improvement license as well as the DOB credentials relevant to the work.
Resolve a mismatch before committing
Ask the contractor to explain a different business name, missing classification or unclear status and supply the relevant record. Confirm the explanation with the issuing authority rather than editing the name in your notes until it matches.
No result in ContractorRoster is not a finding that a business is unlicensed. Our coverage, source timing, spelling and search limits can affect results. Search the appropriate official service and contact it if the answer remains unclear. A portal error is not a negative license finding.
What a registry check does not settle
Check local permits and the scope of any subcontracted trades separately. Request current insurance evidence and confirm coverage questions with the insurer; a license status does not decide whether a particular loss is covered. Ask for references for comparable work and agree on a written scope, payment schedule and change process.
Read any available disciplinary orders for their actual findings and dates. An allegation is not a finding, and the absence of a public complaint is not proof of a clean history. If you are evaluating a legal claim or recovery program, check its specific eligibility rules instead of assuming a license guarantees compensation.
Applying or working across state lines
Use the authority's current category-specific instructions. Our licensing budget guide separates fees from bond and insurance costs; our reciprocity checklist explains what to ask the receiving board. Neither an application nor an exam waiver is an issued license.
Using the roster for research or outreach
Our New York data comes from the covered sources identified as NYC Department of Buildings + DCWP + City of Buffalo; its recorded refresh date is 2026-07-07. A roster row is not necessarily a unique company, and our coverage is not a census of everyone working in the state. License, registration and name-inferred categories must be interpreted separately.
Browse the New York roster to review available trades and territories. Contact fields are supplied where available and are separate from licensing evidence. Before hiring, return to the official record for current status. Original scope guidance was reviewed 2026-09-23. The data refresh date is a different fact.