Moving to New Hampshire as a residential contractor: every state's rule
New Hampshire does not issue a statewide residential contractor license, so there is no reciprocity to speak of. Here is what that means in practice.
New Hampshire residential contractor
No individual license at this level
New Hampshire issues no residential building, home builder, remodeler or home improvement contractor license. The Attorney General puts it plainly in the state's own consumer alert on home improvement scams: "in New Hampshire, contractors do not need to be licensed." The Office of Professional Licensure and Certification administers every occupational board in the state, and the statute that lists them, RSA 310:2, runs to more than eighty entries without naming a contractor board; the construction-related ones license the specialists rather than the builder - the Electricians' Board, the Mechanical Licensing Board (plumbers and gas fitters), the Board of Home Inspectors, the Board of Septic System Evaluators, the Installation Standards Board for manufactured housing, and the design professions of architect, landscape architect, professional engineer, land surveyor, natural scientist and forester. The Attorney General's own warning list is a useful summary of the work that still needs a license: electrical work, inspections, plumbing, septic, well pump work, asbestos abatement and lead abatement. A remodeler or homebuilder arriving from another state therefore has no New Hampshire credential to apply for and nothing to transfer, and should go straight to the local building department for permits and inspections. Two things still bind an unlicensed residential contractor. Under RSA 359-G, the residential construction defect law, a contractor entering a contract for the construction or improvement of a residence for more than $5,000 must give the owner a conspicuous written notice, in the statutory all-capitals form, of the contractor's right to resolve alleged defects before the homeowner sues; a homeowner must then serve a written notice of claim at least 60 days before filing, and the contractor has 30 days to offer repair, offer money, propose an inspection or reject the claim. Over all of it sits the Consumer Protection Act, enforced by the Department of Justice's Consumer Protection and Antitrust Bureau, which also enforces the door-to-door sales disclosure rules in RSA 361-B:3.