The money guide
What a metal roof costs in New Hampshire
National cost guides put a standing seam metal roof at roughly $8 to $39 per square foot installed, and the first honest thing to say is that they disagree with each other by about a factor of four. This Old House, priced from RSMeans construction data, gives $8 to $39 per square foot and $7,540 to $39,430 for a 1,000 square foot roof. Today's Homeowner gives $10 to $20 per square foot and $20,000 to $40,000 for an average home. Bob Vila, last updated in 2022, prices standing seam at $200 to $1,000 per roofing square, which works out to $2 to $10 per square foot. Metal is still about twice the price of asphalt for a roof that serves two to three times as long. The rest of this page is what actually moves the number on your roof.
Most of that spread is metal type rather than region. This Old House breaks it out per square foot: steel $4.59 to $8.55, aluminum and zinc $6.12 to $28.50, copper $12.24 to $26.60. Most New Hampshire residential standing seam is steel or aluminum, which is why a typical quote here lands well below the top of the band. Anyone quoting you a tight statewide number without naming the metal is quoting a guess.
The ranges, system by system
| System | Installed range | Notes |
|---|---|---|
| Standing seam (concealed fastener) | $8 to $39 / sq ft installed | The 40-to-70-year system this site is about. That band is This Old House priced from RSMeans data. Metal type drives most of the spread: steel at the bottom, aluminum and zinc higher, copper at the top. |
| Exposed-fastener metal panels | Below standing seam, no reliable published band | Screw-through panels for barns, camps, and budget jobs. Bob Vila prices sheet metal at $75 to $600 per roofing square against $200 to $1,000 for standing seam, so the discount is real, but no guide we could verify publishes an installed per-square-foot figure. Carries a fastener maintenance schedule. |
| Architectural asphalt (for comparison) | About half the standing seam number | The 2x rule of thumb holds across national cost guides; asphalt typically serves 15 to 30 years here. |
Standing seam band from This Old House, priced from RSMeans construction data. Cross-checked against Today's Homeowner ($10 to $20 per square foot) and Bob Vila ($2 to $10 per square foot, last updated 2022). All three read 2026-08-09. They disagree by roughly a factor of four, which is the honest state of national roofing cost data and the reason this page publishes the spread rather than a tight band. Your quote prices your actual roof.
A worked example: the 1,500 square foot roof
Take a Manchester colonial with a simple 1,500 square foot roof (15 squares). This Old House prices that roof at $11,310 to $59,145 for standing seam, which is the same four-to-one spread the band carries and is not a useful budget on its own. Narrow it with the two things that actually decide it. Pick the metal: steel or aluminum on a simple gable roofline sits in the lower part of the range, and copper or zinc is what puts a project near the top. Then pick the system: a snap-lock panel quotes below a mechanical double-lock spec with engineered snow retention. Exposed-fastener panels on the same roof cost less again, though no guide we could verify publishes an installed per-square-foot figure for them. Add the real-world lines before comparing: tear-off and disposal, a per-sheet decking allowance, and the snow guard layout.
What moves the price up or down
Roof size, measured in squares
Roofers price per square (100 square feet of roof surface). Roof area runs bigger than floor area because pitch stretches it, so a 1,500 square foot ranch does not have a 1,500 square foot roof.
Pitch and complexity
Steeper costs more to work safely, and every dormer, valley, ell, and porch roof adds trim, flashing, and hours. A plain colonial rectangle quotes efficiently; an 1890s farmhouse with three additions does not.
Tear-off versus overlay
Stripping the old asphalt adds labor and disposal but exposes the deck for repair, and it is the default assumption in most manufacturer warranty terms. Deck repair belongs in the quote as a per-sheet price.
Panel gauge and finish
24 gauge costs more than 26; a PVDF finish costs more than SMP and holds color longer. These two lines are where quotes that look identical quietly differ.
Region and access
Mountain-town loads require heavier engineering, and hard site access (steep drives, lakeside lots reached by boat ramp roads) adds staging time.
Snow retention
Engineered guard rows over entries and equipment are a real line item, not a freebie. A New Hampshire quote without one is incomplete, not cheaper.
Trim and flashing
Every chimney, skylight, sidewall, and ridge vent gets its own fabricated metal, cut and fitted by hand. A roof with many penetrations spends more of its budget on detail metal than the panel field suggests.
Add-ons and extras, and how each one prices
None of these carry an honest flat statewide price, so this page does not invent one. Each prices off your specific roof. What they share: every one belongs in the written quote as a named line, because an estimate that folds them into one number cannot be compared to one that itemizes them.
| Add-on | What it is | How it is priced |
|---|---|---|
| Tear-off and disposal | Stripping the old asphalt and hauling it away before panels go on. | Its own labor and disposal line, priced by the roof. The default assumption in most manufacturer warranty terms. |
| Deck repair | Replacing rotten or delaminated sheathing found once the old roof is off. | Per sheet. The per-sheet price belongs in the quote before work starts, not in a change order after. |
| Snow retention | Clamp-on bars or guards over doorways, decks, and fuel equipment. | By the engineered layout: rows, hardware count, and placement. Layout details are on the snow guards page. |
| Ice and water barrier and underlayment | Membrane at eaves and valleys plus underlayment across the deck. | Usually inside the base quote on a tear-off. Worth confirming it is named there rather than assumed. |
| Chimney and skylight flashing | Custom-fabricated detail metal around each penetration. | Per detail. Old masonry chimneys take more fitting time than a pipe boot. |
Snow retention layout and hardware are covered in depth at snow guards and ice dam protection; the tear-off decision and the full project sequence at metal roof replacement.
When the low number is real, and when it is not
The $10 end of the standing seam range is a real price, not bait, for a specific kind of job: a simple gable or colonial roofline, snap-lock panels, 26 gauge metal in an SMP finish, easy access, southern-tier snow specs, and nothing ugly waiting under the old shingles. Change those conditions and the honest number climbs. Dormers and valleys, a mechanical double-lock spec at mountain snow loads, 24 gauge in PVDF, tear-off that finds bad decking, engineered snow retention, and hard site access each push toward the top of the band, and they stack. So does the metal: copper and zinc carry the highest per square foot figures in every guide read here.
Two flags in the other direction. A "standing seam" quote sitting well under the rest of your quotes usually means one of two things, so ask which before celebrating: the product is actually an exposed-fastener panel, or named lines like tear-off, the decking allowance, or snow retention are missing from the number. And every whole-house figure on this page assumes a whole house; a small camp or garage roof honestly lands below all of them because there is simply less roof.
The 40-year view
Metal typically serves 40 to 70 years (Metal Roofing Alliance; State Farm guidance cites 40 to 80), asphalt 15 to 30. Over a 40-year window, the asphalt path is two or three purchases plus tear-offs and disposal; the standing seam path is one. On the worked example above, $24,000 of standing seam over 40-plus years runs about $600 a year, while $12,000 of asphalt bought roughly every 20 years runs about the same before its extra tear-offs, ice dam repairs, and the fact that each replacement cycle reprices at future labor rates. The premium buys the years; the full comparison, including where asphalt still wins, is the standing seam vs asphalt guide.
No credit, no rebate, no exceptions
The federal energy-efficiency credit (section 25C) expired for property placed in service after December 31, 2025, and even before that only certain reflective ENERGY STAR metal roofs qualified. NHSaves has no roofing rebate. Budget the real number, and treat any pitch built on a credit or rebate as a sign to re-check everything else in the quote.
Reading a quote like it matters
New Hampshire has no contractor license, so the written quote does the work a credential would. Five named items make quotes comparable: panel system, metal, gauge, finish, snow retention layout, plus a per-sheet decking price for surprises. The systems behind those words are explained at standing seam metal roofing, the project sequence at metal roof replacement, and the whole decision at the New Hampshire Metal Roofing Guide. Regional wrinkles, from mountain premiums to Seacoast salt-air specs, live on the region pages.