Contractor License Requirements in New Hampshire

New Hampshire does not require a state-level general contractor license. However, certain specialty trades such as electricians and plumbers must be licensed. Many local jurisdictions in New Hampshire have their own contractor registration and licensing requirements that may be more stringent than state-level regulations. New Hampshire does not require a general contractor license at the state level. Electricians, plumbers, and gas fitters must be licensed. Some municipalities have contractor registration requirements. New Hampshire does require building permits for most construction projects.

Important

Never hire a contractor who cannot provide a valid license number. A legitimate contractor will have no hesitation sharing their license credentials for you to verify independently. If a contractor refuses, discourages you from checking, or makes excuses, treat that as a serious red flag.

Visit the New Hampshire Office of Professional Licensure and Certification website to verify any contractor's license before hiring.

New Hampshire does not currently have reciprocal contractor licensing agreements with other states. Contractors licensed in other states must apply for a new New Hampshire license through the standard application process. Some states may credit out-of-state experience toward licensing requirements -- contact the New Hampshire Office of Professional Licensure and Certification for details.