Anyone performing home improvement services for a fee in NYC is required to be licensed by the Department of Consumer Affairs. Homeowners doing work on their own homes do not need to be licensed.
Queen Economic Development Corporation offers a Home improvement contractor training program to make it easy for you to get your license.
The program is a 3-session, 18 hour training course that both prepares participants for the NYC home improvement contractor licensing examination and helps participants put their license applications together.
FInd out more here