Contractor checks and roofing paperwork near Lincoln Park

New Jersey's Division of Consumer Affairs says home improvement contractors are required to register with the state, and its FAQ does not call this a license. Renewals are due before March 31. Among the requirements the FAQ lists is commercial general liability coverage of $500,000 per occurrence, at a minimum. It adds that a registered contractor's number belongs on documents, vehicles, business cards and advertising.

The state rule adds that nobody may engage in the business of home improvement without registering, and nobody may advertise as a contractor unless registered. The Division's verification page has a business search: pick the license type first, then Business Search. According to the FAQ, registration does not replace a town's construction permit.

New Jersey's contract rule, section 13:45A-16.2 of the administrative code, wants a home improvement contract over $500 in writing, signed by every party. It lists the contents: the seller's identity and address, a description of the job and its principal materials, the total price (or an hourly rate where the job is billed by time and materials), and the start and completion dates. Changes are put in writing as well.

The same rule covers timing of the paperwork. Permits are issued before work starts, inspection certificates come before final payment, and no completion certificate or final payment is due until the work is done.

Certain sales made at your home or at a temporary location can be cancelled within three business days under the Federal Trade Commission's Cooling-Off Rule. It covers purchases of $25 or more at home and $130 or more at temporary locations. Exceptions include emergency sales, and repair or maintenance that you requested.

Whether the rule reaches a roof job depends on how the sale came about. The FTC page is the place to check before relying on it.

An alert from the state, effective with the 5 March 2018 New Jersey Register, classes the repair or replacement of existing roof covering, in any amount and up to a full tear-off, as ordinary maintenance for a house that stands apart and holds one or two families. Neither a permit nor an inspection is called for, yet the work remains subject to the code. Gutters and leaders are on the same list.

The rule behind it, section 5:23-2.7 of the administrative code, carves out any work affecting structural or fire safety. Attached dwellings and larger buildings sit outside the alert's wording, so those jobs are a question for the town office.

The state's Spring 2025 Construction Code Communicator has an item on solar and reroofing. It says reroofing is ordinary maintenance, that removing rails in a way that breaks the grounding or bonding path is the one case calling for an electrical permit, and that reattaching panels needs no building permit. The roof-access provisions of section R324 apply only when a solar system is newly installed or entirely replaced.

The state's current-codes page lists the 2024 New Jersey editions of the International Building Code and the International Residential Code, adopted on 17 August 2026. The alert's line that all work meets code requirements points to those editions for new work.

A separate state bulletin on ice dam protection, issued in May 2007 and revised in June 2015, wants an ice barrier membrane at the eaves wherever January averages 25 degrees or colder, and for New Jersey its text names Sussex County.

The Department of Banking and Insurance in New Jersey recommends reporting a loss promptly, protecting the property with temporary repairs, saving receipts, and photographing damaged items before they are thrown out. Its position is that the policyholder picks the contractor, whoever the insurer names. Its consumer hotline is 1-800-446-7467, weekdays from 8:30 to 5.

The department also notes that standard homeowner policies do not cover flood. A roof claim and a flood claim go through different channels.