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A New Hampshire Homeowner's Guide to Garage Door Repair, Replacement and Openers
We take garage door requests from four parts of the state: the Nashua area; Salem, Derry and Londonderry; Manchester and Bedford; and the Seacoast from Portsmouth to Rochester. With no state contractor license to lean on and permits set by each town, a little homework before you hire pays off, and every town page covers what its building department expects. Phone (978) 330-1721 or use the form. A person reads every request and replies with what happens next.
- No cost to you
- New Hampshire rules in plain words
- Nashua to the Seacoast
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Where we work
Our New Hampshire towns
In New Hampshire the city or town issues building permits and may enforce codes tougher than the state's, so what a garage door job needs on paper can change at the town line. Each town page describes the local building department, what it wants to see before an opening is changed, and the garages common in that town. Towns without a page yet are still covered, and requests from them are welcome.
Nashua Region
Salem, Derry & Londonderry
Manchester & Bedford
Portsmouth, Dover & Rochester
New Hampshire law
Vetting, contracts, defect claims and permits
No license to check. In consumer advice published March 10, 2022, the Attorney General's office says "contractors do not need to be licensed" in New Hampshire. That leaves the checking to you: ask for references from earlier jobs and from the suppliers the company buys from, and ask every company you talk to for proof of insurance (NH Attorney General).
Get it in writing. The same advice says to have a written contract before any work starts or any money changes hands, spelling out the scope, materials, total price and payment schedule. It names a down payment above 50% of the final cost, or a demand for full payment before the job is done, as signs of trouble. Problems can be reported to local police or to the Consumer Protection Hotline at 1-888-468-4454 (Consumer Protection Hotline). The Consumer Protection Act bars unfair or deceptive practices, such as misrepresenting approvals or the quality or grade of goods, and lets a homeowner sue for damages (RSA 358-A).
Defect claims. When a contract is worth more than $5,000, the contractor has to give you written notice that begins "NEW HAMPSHIRE LAW, RSA 359-G, CONTAINS IMPORTANT REQUIREMENTS YOU MUST FOLLOW BEFORE YOU MAY FILE A LAWSUIT." Under that law, a homeowner serves a written notice of claim no later than 60 days before suing, and the contractor has 30 days after service to respond (RSA 359-G).
Permits and the 2024 codes. Issuing permits and collecting their fees is reserved to towns, cities, counties and village districts, and stricter local codes stay in force (RSA 155-A:2). Where a town does no enforcement of its own, the State Fire Marshal steps in only at the town's written request (RSA 155-A:7). The state building code was updated to the 2024 editions on July 1, 2026; permit requests may follow either the old or the new set during a concurrence period that ends December 31, 2026, and from January 1, 2027 every request follows the 2024 codes (Town of Merrimack code page). No state list says which garage door jobs need a permit, so call the building department before a door is replaced and before any opening is enlarged.
Last verified November 2026. Fees, restrictions and deadlines on this page are due for re-checking by January 2027.
Openers and safety
Opener wiring, federal safety rules and broken springs
Electrical work for openers. Making electrical installations without a state license is a misdemeanor for a person and a felony for a company (RSA 319-C:15). "Electrical installations" means installing, repairing, altering or maintaining wiring, devices and fixtures for heating, lighting or power at any voltage (RSA 319-C:2). The same law lets a homeowner do that work in or about a single-family home that the homeowner owns and lives in. A new outlet or circuit for an opener therefore takes an NH-licensed electrician unless it's your own single-family home and you do it yourself, and either way, ask the town building department whether a permit is needed. Electrician licenses can be checked through the state's online license verification (lookup confirmed November 8, 2026).
What every modern opener must do. Residential garage door operators made on or after January 1, 1993 for sale in the United States fall under a federal safety standard. A door on its way down has to start reversing within 2 seconds of touching an obstruction and return to fully open. The opener needs secondary entrapment protection, such as an external photoelectric sensor or an edge sensor on the door, and if that device is missing or faulty an open door will not close more than one foot below the top (16 CFR 1211.8; 16 CFR Part 1211).
Labels and the monthly test. The warning label beside the wall control states the risk of a child being trapped under an automatic door, says to keep a closing door in sight, and calls for testing the opener every month with a 1½-inch-thick object on the floor under the door; if the door does not reverse on contact, the opener is to be adjusted, repaired or replaced. On sectional doors, another label warns that the door and opener work as a system and that any replacement door or hardware must match the original maker and model (16 CFR 1211.17).
CPSC advice for families. The Consumer Product Safety Commission recommends a look at the door and opener every 30 days, suggests a 2x4 on the floor for the reversal test, and says an opener that fails it should be disengaged until it is fixed. Keep remotes away from children, put the wall button as high as practical and set photo-eyes 4 to 6 inches off the floor. CPSC adds that doors which are out of balance, bind or stick "should be serviced by a professional" (CPSC Pub. 523); never try to adjust springs, cables or tracks yourself.
What we refer
Garage door jobs, explained for New Hampshire homeowners
Garage Door Repair
Doors that stick, sag, jump the track or will not close, plus dented panels, rollers and weather seals.
New Garage Doors
Steel, wood-look and insulated doors swapped into existing openings, with the permits a new opening may need.
Openers
New or replacement openers, with the auto-reverse and entrapment protection federal rules require, plus keypads and remotes.
Springs & Cables
Broken torsion or extension springs and frayed lift cables, a job for a trained technician, not a homeowner.
FAQ
Common New Hampshire garage door questions
Does a garage door company need a state license in New Hampshire?
No. The Attorney General says contractors in New Hampshire do not need to be licensed. Ask each company for references from past jobs, the suppliers it uses and proof of insurance.
How much should I pay before the new door goes in?
The Attorney General's office treats a down payment over 50% of the final cost, or full payment before the job is finished, as a warning sign, and recommends a written contract with the payment schedule before any work or payment.
Do I need a town permit to replace a garage door or widen the opening?
Permits come from your city or town, and no state list says which garage door jobs need one. Call the building department before the work, and especially before an opening is enlarged or reframed. New permit requests follow the 2024 codes from January 1, 2027; through December 31, 2026 either code set is accepted.
Can I wire the outlet for a new opener myself?
New Hampshire law lets a homeowner make electrical installations in a single-family home the homeowner owns and lives in; anyone else doing the work needs a state electrician's license. Either way, ask the town building department whether a permit is needed.
Do I pay anything to New England Garage Door Pros?
No. Sending a request and getting a referral cost you nothing; the garage door company prices the job.