New Hampshire roof replacement runs about $5,200 to $12,500 in 2026 depending on region, with a mid-point near $8,700 in the populous south — modeled by the Vanderflip Home Cost Index (VHCI v2.0) from public Bureau of Labor Statistics wage data, a Bureau of Economic Analysis price parity of 104.165, and a snow-and-ice climate modifier. Pick your region below, then read the registration, code, snow-load, and ice-dam rules that actually move your number.
Estimate for educational planning purposes only. Not a contractor bid or guarantee.
Every dollar figure on this page comes from the Vanderflip Home Cost Index (VHCI v2.0), an open-method model assembled only from public data. We do not license, scrape, or republish any proprietary construction-cost database. New Hampshire replacement ranges run from about $5,200 in the low-cost North Country to $12,500 on the high-wage Seacoast, and every regional figure is derived the same transparent way: a Bureau of Labor Statistics roofer wage base, a Bureau of Economic Analysis New Hampshire price parity of 104.165, and a 1.15 snow-and-ice climate modifier that accounts for ground snow load, the mandatory ice-dam membrane, and the 12–15% waste that steep Colonial and Cape Cod pitches add. Full inputs are documented in the VHCI methodology section at the bottom of this page.
New Hampshire is a small state with an outsized cost gradient, and it runs north-to-south on two axes at once: wage and weather. The populous south around Manchester and Nashua sits inside Boston’s labor shadow, which pulls roofer wages up. The Seacoast around Portsmouth and Dover carries the highest regional wage in the state and adds Nor’easter wind exposure. The Lakes Region and the North Country are lower-wage nonmetro markets, but the mountains impose the heaviest snow loads in New England. The VHCI assigns each of the four regions its own low / mid / high band. Click a region in the estimator above to open its range, then read the code, snow, and ice-dam rules that move your number.
| Region | VHCI Low | VHCI Mid | VHCI High | Primary Cost Driver |
|---|---|---|---|---|
| Southern NH | $6,400 | $8,700 | $11,900 | Boston labor drain, highest demand ($25.90/hr, CBSA 31700) |
| Seacoast | $6,800 | $9,200 | $12,500 | Highest wage ($27.15/hr, CBSA 38860) + Nor’easter Exp C/D wind |
| Lakes Region | $6,000 | $8,100 | $11,000 | Heavy snow; standing seam metal common ($22.65/hr) |
| Rural / North Country | $5,200 | $7,000 | $9,600 | Lowest wage ($22.65/hr); alpine 80–100+ PSF snow |
The spread from the North Country to the Seacoast is roughly $1,600 at the low end and $2,900 at the high end — wide for a state this compact, and driven almost entirely by the wage gap between Boston-influenced southern labor and the nonmetro north. Each figure is an all-in installed price — tear-off, disposal, the code-required ice-and-water barrier, underlayment, flashing, shingles, and labor — for a typical owner-occupied single-family home, not a slate, cedar, or standing-seam specialty roof, which price well above these asphalt bands.
Here is the fact every New Hampshire homeowner should internalize: the state does not license roofing contractors, and there is no roofing trade exam. What New Hampshire has instead is registration. Under RSA 310-A:188 through 310-A:198, home improvement contractors register with the Office of Professional Licensure and Certification (OPLC) rather than earning a licensed trade credential. Registration requires a minimum $25,000 general liability policy but no competency examination, so it confirms that a business exists and carries insurance — it does not vet skill.
Because the state performs no trade-competency check, verification falls entirely on you. A registration number tells you a contractor is on file and insured to the statutory minimum; it tells you nothing about whether they can flash a valley or detail an eave membrane correctly. Treat OPLC registration as the floor, not the finish line, and run the checks below before any money changes hands.
Because New Hampshire requires only registration and no trade exam, this protocol is your real protection:
New Hampshire enforces the International Residential Code (IRC) statewide through the State Building Code (RSA 155-A), so the structural, fastening, underlayment, and flashing provisions that govern your roof are IRC provisions. The state is in the middle of a code transition: a concurrency window lets jurisdictions apply either the outgoing edition or the 2024 IRC through December 31, 2026, and the 2024 IRC becomes mandatory statewide on January 1, 2027. If you re-roof in 2026, confirm which edition your town is enforcing, because it changes underlayment and ventilation details.
One provision is not optional anywhere in the state: the ice barrier. Under IRC R905.1.2, a self-adhering polymer-modified bitumen membrane meeting ASTM D1970 is mandatory statewide, running from the eave up the roof to at least 24 inches inside the exterior wall line. It is the single most important cold-climate roofing requirement in New Hampshire, and it exists because of ice dams.
Snow load, not wind, is the dominant structural driver in New Hampshire. Ground snow loads follow the U.S. Army Corps of Engineers ERDC/CRREL study TR-02-6, the authoritative New Hampshire ground-snow-load reference, and they climb steeply with elevation. A roof framed for a 45 PSF valley load is nowhere near what a White Mountains site demands.
| Region | Ground Snow Load (ERDC/CRREL TR-02-6) | Note |
|---|---|---|
| Southern NH | 40–55 PSF | Merrimack Valley design baseline |
| Seacoast | 40–50 PSF | Moderated by the ocean; wind-driven drift raises local demand |
| Alpine / White Mountains | 80–100+ PSF | North Country structural upgrades; snow-shedding metal favored |
Wind matters most on the coast. Design wind speeds run about 110–115 MPH statewide, but the Seacoast sits in Exposure Category C and D, where open coastal fetch and Nor’easters drive uplift that sheltered inland sites never see. Coastal roofs there need high-wind fastening on top of the snow and ice detailing the rest of the state already requires, which is a real part of why the Seacoast band sits at the top of the table.
If the Gulf Coast has hurricanes and the Plains have hail, New Hampshire has ice dams — and they are the number-one roofing failure mode in the state. The mechanism is freeze-thaw. Heat escaping through the roof deck melts the underside of the snowpack; the meltwater runs down to the cold eave and overhang, where it refreezes into a growing dam of ice. Water backing up behind that dam is forced under the shingles and into the house. No shingle system sheds water uphill, which is why the code response is a membrane, not a covering.
That is exactly what the ASTM D1970 ice-and-water barrier does: it seals the deck at the vulnerable eave so that even when a dam forms and water backs up, the deck stays watertight. New Hampshire mandates it statewide under IRC R905.1.2 for this reason. Proper attic insulation and ventilation reduce the heat loss that starts the cycle — and should always be part of the job — but the membrane is the last line of defense, and it is required, not optional.
New Hampshire’s roofing labor market does not stand alone — it is coupled to Boston. Southern New Hampshire is close enough that crews and tradespeople can commute to higher-paying metro-Boston jobs, which drains local labor supply and lifts Southern NH and Seacoast wages above what a state this size would otherwise support. That coupling is the single biggest reason the southern regions print well above the North Country.
Large in-state institutional employers add their own steady draw on skilled trades: BAE Systems and DEKA Research in the Manchester–Merrimack corridor, Liberty Mutual in the Dover and Portsmouth Seacoast, and the University of New Hampshire (UNH) and Dartmouth College campuses. Their construction and facilities work competes for the same crews that install residential roofs, tightening availability during the short northern building season and firming installed pricing when demand peaks after a hard winter.
Material choice in New Hampshire is a cold-climate calculation, and three systems dominate the market.
Because the VHCI baseline models architectural asphalt shingles, standing seam, slate, and cedar projects will price above the ranges shown — often substantially — and should be quoted as their own scope.
New Hampshire’s housing stock skews toward steep-pitched Colonial and Cape Cod forms built to shed snow, and pitch is a real cost multiplier. Where a Sun Belt ranch might sit at a 4:12 pitch, New Hampshire roofs commonly run 8:12 to 14:12. Steep pitch adds surface area, slows installation, requires fall protection, and increases cut waste — typically 12–15% on a complex New Hampshire roof versus single digits on a simple low-slope one. The VHCI is calibrated to a 22-square baseline; a steep, cut-up roof with many valleys and dormers pushes you toward the high end of your regional band.
The VHCI generates roofing cost estimates using U.S. Bureau of Labor Statistics Occupational Employment and Wage Statistics data (SOC 47-2181, Roofers), U.S. Bureau of Economic Analysis Regional Price Parities, and regional climate and building-code modifiers sourced from state and municipal government publications. No proprietary commercial construction database is used at any stage.
These figures are modeled estimates published for educational and informational purposes only — not quotes, appraisals, or construction advice. Always obtain at least three written quotes from registered, insured contractors before acting. For a full description of the model and its inputs, see How the VHCI Works.
The VHCI v2.0 puts a typical New Hampshire roof replacement between about $5,200 in the low-cost North Country and $12,500 on the high-wage Seacoast for an asphalt-shingle roof. The populous south around Manchester and Nashua runs roughly $6,400 low, $8,700 mid, and $11,900 high. Every band is built from BLS roofer wages, a BEA New Hampshire price parity of 104.165, and a 1.15 snow-and-ice climate modifier. Use the estimator at the top of the page for a number tuned to your region and roof size.
No. New Hampshire does not license roofers and has no roofing trade exam. Home improvement contractors register (not license) with the Office of Professional Licensure and Certification (OPLC) under RSA 310-A:188–198, carrying a minimum $25,000 general liability policy. Registration confirms a business exists and is insured, but no competency exam is required, so verifying skill and references is your responsibility.
New Hampshire enforces the International Residential Code (IRC) statewide under the State Building Code (RSA 155-A). The state is mid-transition to the 2024 IRC: a concurrency window runs through December 31, 2026, and the 2024 IRC becomes mandatory statewide on January 1, 2027. Regardless of edition, a self-adhering ASTM D1970 ice-and-water barrier is mandatory at the eaves under IRC R905.1.2.
Ice dams are the number-one roofing failure mode in New Hampshire. Heat escaping the roof deck melts the snowpack, the meltwater refreezes at the cold eave into a dam, and water backing up behind it is forced under the shingles. No shingle sheds water uphill, so the code answer is a membrane: the statewide ASTM D1970 ice-and-water barrier required under IRC R905.1.2 seals the deck at the eave. Insulation and ventilation reduce the heat loss that starts the cycle.
Ground snow loads follow the US Army Corps of Engineers ERDC/CRREL study TR-02-6, the authoritative New Hampshire reference, and climb steeply with elevation: roughly 40–55 PSF across Southern New Hampshire, 40–50 PSF on the Seacoast, and 80–100+ PSF in the alpine White Mountains and North Country. Higher loads drive heavier framing and are a major reason many mountain owners choose snow-shedding standing seam metal.
Wages and wind. The Seacoast carries the highest regional roofer wage in the state (BLS $27.15/hr, CBSA 38860) and sits in Exposure Category C and D, where open coastal fetch and Nor’easters drive uplift that inland roofs never see. The North Country is a lower-wage nonmetro market (BLS $22.65/hr). Southern New Hampshire wages are also lifted by the Boston labor drain, so the whole southern half prints above the north.
Every figure comes from the Vanderflip Home Cost Index (VHCI v2.0), built only from public data: BLS roofer wages (SOC 47-2181), the BEA New Hampshire Regional Price Parity of 104.165, a 1.15 snow-and-ice climate modifier, and US Army Corps ERDC/CRREL TR-02-6 snow loads. We use no proprietary or licensed construction-cost databases, so any number on this page can be audited against its citation.
Drill into a specific New Hampshire city for localized labor rates, permit notes, and metro-level VHCI cost data:
All cost figures on this page are produced by the Vanderflip Home Cost Index (VHCI v2.0) from public, government-sourced data only. Labor inputs: US Bureau of Labor Statistics occupational wage data for Roofers, SOC 47-2181 (Southern NH CBSA 31700 at $25.90/hr; Seacoast CBSA 38860 at $27.15/hr; nonmetro $22.65/hr). Regional price level: US Bureau of Economic Analysis Regional Price Parities, New Hampshire RPP 104.165. Climate adjustment: a 1.15 snow-and-ice modifier. Snow loads: US Army Corps of Engineers ERDC/CRREL TR-02-6. No proprietary, licensed, or paywalled construction-cost databases are used.
Legal and code references summarize the New Hampshire State Building Code (RSA 155-A) and IRC adoption, with the 2024 IRC mandatory January 1, 2027; the statewide ASTM D1970 ice-barrier requirement under IRC R905.1.2; and home improvement contractor registration through the Office of Professional Licensure and Certification (OPLC) under RSA 310-A:188–198. This page is for informational purposes only and is not legal, insurance, or construction advice. Always obtain at least three quotes from registered, insured contractors and verify current statutes at the relevant state agency before acting.
VHCI v2.0 · Last updated June 2026 · Verify all statutory, code, and snow-load requirements with the New Hampshire OPLC at oplc.nh.gov and your local building department before relying on them.