What Should a General Contractor Show You in New Hampshire?
Not a state licence, because there isn't one. New Hampshire issues no general contractor licence at all, which makes the standard advice to check the licence useless here. That changes what you should actually be asking for, and most homeowners never find out until something has already gone wrong.
By Sean Ryan, Owner · Last updated September 23, 2026
Why Is There No Contractor Licence to Check?
Because New Hampshire regulates the trades rather than the builder, deliberately.
The state licenses the disciplines where a mistake is dangerous: electricians, plumbers and fuel gas fitters, each licensed individually through the Office of Professional Licensure and Certification. Those credentials belong to the person rather than the company, and they follow the tradesperson between employers.
What the state does not issue is a general contractor licence. Framing, carpentry, roofing, siding and remodelling carry no state credential. Accountability sits instead with the municipal building department, which issues permits and inspects the work, and with contract law if a dispute arises.
So anyone advertising as a licensed general contractor in New Hampshire is using the word loosely. It is not necessarily dishonest, but it is not a credential either, and it should not be the thing that decides your hire.
Requirements do change, so confirm current rules with OPLC before relying on any of this. If a firm tells you it holds a state registration, ask which one and look it up.
What Should You Verify Instead?
Four things, and together they do more work than a licence would.
Trade licences on the trades. Your project's electrical and plumbing portions must be performed by individually licensed people. Ask who is doing them and whether they are direct employees or subcontractors, then verify those individuals rather than the general contractor.
A certificate of insurance issued by the carrier. Not a forwarded PDF. Check the policy is current, the named insured matches the business on your quote, and the coverage is appropriate to the size of your job.
A written contract, always. With no licensing board standing behind the work, your contract is the mechanism. It should name the scope, the payment schedule tied to completed stages, how changes are priced, and the expected timeline.
Permit history at the Town. Londonderry's building department sees the same names repeatedly. Asking whether a contractor pulls permits properly is a fair question and the department deals with it routinely.
How do I find a good general contractor near me, in New Hampshire specifically: verify the trades, read the insurance certificate, and get everything in writing. The state is not doing that part for you.
What Happens If Something Goes Wrong?
There is a defined process, and it is worth knowing before you need it.
RSA 359-G sets out a framework for residential construction defects and dispute resolution, designed to encourage out-of-court settlement between homeowners and contractors. It provides a structure for raising an alleged defect, and it allows a homeowner to give access for an inspection, something the statute encourages but does not require.
Separately, RSA 358-A, the Consumer Protection Act, covers unfair and deceptive business practices and is enforced by the Attorney General.
The practical takeaway for a homeowner is that New Hampshire's remedies run through documentation and contract rather than through a licensing board that can pull someone's ticket. That is exactly why the written contract above matters more here than it does in a state with a licensing regime.
What Does a General Contractor Actually Do?
Coordination, and it is worth understanding what you are paying for.
On a single-trade job you can hire that trade directly. On anything involving several, somebody has to own the sequence: demolition before rough-in, rough-in before inspection, inspection before close-up, close-up before finish. Get that order wrong and work gets undone.
A general contractor Londonderry homeowners engage takes on four things. Sequencing the trades so nobody is waiting on nobody. Permits, including who pulls which and when. Single-point accountability, meaning one number to call rather than four contractors blaming each other. And problem ownership when something opens up that nobody expected, which on older Rockingham County housing stock is most projects.
The alternative, managing trades yourself, genuinely saves the coordination margin. It costs you the time and the risk, and it means a scheduling failure is yours.
For a home renovation contractor Londonderry residents hire across multiple rooms, that coordination is most of the value. Our kitchen and bathroom guides cover the single-room versions.
What Do General Contractors Typically Charge?
A general contractor cost is usually asked as a percentage, and the more useful answer is that it depends on how the job is priced.
Two common structures. Fixed price, where you agree a number for a defined scope and the contractor carries the risk of it taking longer. Cost plus, where you pay actual costs plus an agreed fee, with more visibility and less certainty.
What does a general contractor charge for a remodel varies with scope, how many trades are involved, the age and condition of the house, and how much of the work is genuinely unknown until walls come open.
Three things worth agreeing before signing, whichever structure you choose. How change orders are priced, in writing, before any arise. What the payment schedule is tied to, which should be completed stages rather than dates. And what happens if something unexpected is found, which on a 1970s Londonderry ranch is a when rather than an if.
Where Do You Work, and What Do You Offer?
Londonderry, Atkinson, Derry, Windham, Salem and Hampstead across Rockingham County. Free estimates with up-front pricing, and for anything multi-room that means walking the house rather than quoting from a description.
See our services on general contracting, kitchen remodeling, bathroom remodeling, home additions and cabinetry. Completed projects are in the gallery, the area list on our location page, and more about us.
Comparing the best general contractor near Londonderry, asking who does home renovations in Londonderry, or looking for which general contractor near me offers free estimates? Ask the four verification questions above first. Any building contractor Londonderry homeowners should trust will answer all four without hesitating, and will offer the written contract before you ask for it.
Frequently Asked Questions
1. How much does a general contractor cost in Londonderry?
It depends on how the job is priced rather than on a single percentage. Fixed price means an agreed number for a defined scope, with the contractor carrying the risk if it runs long. Cost plus means actual costs plus an agreed fee, giving more visibility and less certainty. Beyond structure, cost tracks scope, how many trades are involved, the age and condition of the house, and how much is genuinely unknown until walls open. Agree how change orders are priced, in writing, before any arise.
2. Do you offer free project estimates?
Yes, with up-front pricing, and for anything beyond a single room it means walking the house rather than quoting from a description. Three things can only be assessed in person: whether the electrical panel has capacity for what you are adding, whether walls you want removed are carrying load, and what is actually inside those walls in terms of plumbing and mechanical runs. Bring your must-haves and nice-to-haves separately, since that shapes how the project is staged and phased.
3. Are you insured and bonded?
Yes to insurance and yes to a written contract, and the written contract matters more in New Hampshire than in most states. There is no state general contractor licence here, so there is no licensing board standing behind the work, which means your contract is the mechanism if anything goes wrong. It should name the scope, a payment schedule tied to completed stages rather than dates, how changes are priced, and the timeline. Ask any contractor for a certificate of insurance issued directly by their carrier.
4. What areas around Londonderry do you serve?
Londonderry, Atkinson, Derry, Windham, Salem and Hampstead, across Rockingham County. Worth knowing that permit processes differ town by town in New Hampshire, since there is no statewide building permit, so each municipality runs its own department with its own submission requirements and inspector availability. That local knowledge affects your timeline more than most homeowners expect, and it is a fair question to ask any contractor about the specific town your project sits in.
5. Do you offer financing for a larger project?
Ask at the estimate stage rather than after the quote, because it affects how the project is staged. Whatever arrangement you are offered, three questions settle most of it before signing: what the rate becomes once any promotional period ends, whether the agreement places a lien on your property, and whether the cash price differs from the financed price, since a quote that rises when you offer to pay outright has a commission built into it. Confirm the payment schedule in writing before work starts.
Contact Sean Ryan & Son Carpentry
Sean Ryan & Son Carpentry 1 Pheasant Lane Atkinson, NH 03811 Call: 603-362-8230 · Text: 603-300-6214 Serving Londonderry, Atkinson, Derry, Windham, Salem and Hampstead across Rockingham County since 1995. Free estimates and up-front pricing.
Planning a project? Get a free estimate or call 603-362-8230, and ask us for the written contract before you ask us for a number.
