Rules & Licenses
Check an NYC Home-Improvement Contractor License
NYC home-improvement contractors over the small-job threshold need a DCWP license that consumers can look up.
Published June 23, 2026 ยท Last verified June 23, 2026
For Brooklyn, the important split is between the record and the next office. NYC311 says a contractor needs a Department of Consumer and Worker Protection license to do home-improvement work costing more than $200. DCWP points consumers to its online Search Business tool. That search can show whether a person or business has a DCWP license, and it does not require an account.
DCWP also posts a list of unlicensed home-improvement contractors. A careful homeowner can search the business name, ask for the license number, compare it with the contract, and save the result with estimates and payment records. Keep the applicant name, business name, form, license, or certificate with the date you checked it before treating the answer as final.
For Brooklyn, let the record lead. Use NYC311: Home Improvement Contractor License Check for the public starting point, then keep the exact home improvement or dcwp, search date, and identifying number with the file. Keep the office name with the file too: NYC311. If the answer affects money, title, access, a permit, a license, or a deadline, that name keeps the next call from starting cold. Brooklyn home improvement or dcwp paperwork is less fussy when the address, parcel, citation, account, or application number is written down early.