Metal roof cost per square foot depends on the panel system, the roof and the scope. No local price is published here. Homewyse puts standing seam installation at $18.37 - $24.82 per square foot as a national planning range (September 2026). Wind Proof Roofing LLC installs standing seam metal roofing in Oak Harbor, Anacortes, Coupeville, Freeland and Stanwood, WA, and sets each figure after inspecting the roof.
National Planning Ranges for Metal Roof Cost Per Square Foot
The metal roof cost per square foot figures below are national planning ranges from published sources. They are not Wind Proof Roofing LLC prices, and they are not a quote for any roof on Whidbey Island or in Anacortes.
Homewyse states: "In September 2026 the estimated national average cost to Install a Seam Metal Roof starts at $18.37 - $24.82 per square foot." This Old House states for metal roofing: "Pricing starts at $20 per square foot."
Both sources describe a starting point, not a ceiling. Neither figure covers the exact layout, condition or details of your roof. No sourced per-square-foot figure is available here for corrugated or exposed-fastener panels, so this page gives no number for them.
| Source | What the figure covers | National planning figure | Date given |
|---|---|---|---|
| Homewyse | Installing a seam metal roof | $18.37 - $24.82 per square foot | September 2026 |
| This Old House | Metal roofing | Pricing starts at $20 per square foot | 2026 |
| No sourced reference | Corrugated or exposed-fastener panels | No figure available | Not applicable |
| Wind Proof Roofing LLC | Standing seam metal roof for your home or building | Set only after inspecting the roof | Per project |
What a Per-Square-Foot Metal Roof Price Usually Covers
A per-square-foot metal roof price is only comparable when you know what work sits inside it. Two estimates with similar unit prices can describe very different jobs.
- Removal and disposal of the existing roof
- Inspection of the decking and replacement of damaged sections, if any
- Underlayment and moisture barrier
- Metal panels and their finish
- Trim and flashing at eaves, rakes, valleys, walls and chimneys
- Ventilation components
- Sealing of pipe boots, vents and other penetrations
- Cleanup at the end of the job
What Pushes Metal Roof Cost Up or Down
Metal roof cost per square foot moves with a handful of factors that the national ranges cannot see. Each one is worth discussing during the estimate.
Panel system. Standing seam metal roofing hides its fasteners under raised seams, while exposed-fastener panels screw through the face of the panel. Wind Proof Roofing LLC offers standing seam metal roofing; ask directly if you are considering exposed-fastener panels, since that option is not confirmed here. The guide on standing seam vs exposed fastener metal roofs explains the difference.
Panel thickness and finish. Gauge and paint system both change material cost. Wind Proof Roofing LLC installed a snap-lock standing seam roof with a Kynar 500 finish in Anacortes. For the trade-offs between paint systems, see Kynar vs SMP metal roof coating.
Roof complexity. Valleys, dormers, skylights, chimneys, wall transitions and steep pitches add cutting, trim and labor. A simple roof with few penetrations usually costs less per square foot than a cut-up roof of the same size.
Underlayment, trim and flashing. These parts are easy to overlook in a quick comparison, yet they protect the edges and joints where leaks tend to start.
Metal Roof vs Asphalt Shingles: Comparing Cost Over Time
Metal roof cost should be weighed against architectural asphalt shingles, since Wind Proof Roofing LLC installs both and many owners price the two side by side.
The national references above give a per-square-foot planning figure for metal only. No sourced shingle figure is provided on this page, so no percentage or payback number is offered here. The honest comparison is the one built from two estimates for your own roof, with the same tear-off, decking and flashing scope in each.
How to Compare Metal Roof Estimates Line by Line
Comparing metal roof estimates works best when every quote describes the same job. The checklist below is general guidance for reading any estimate, not a description of a specific company's paperwork.
- Unit of measure: per square foot, per roofing square, or one lump sum
- Panel system named: standing seam (snap-lock or other) or exposed fastener
- Panel thickness and paint system named, not just "metal"
- Underlayment type stated
- Trim and flashing listed for each area: eaves, rakes, valleys, walls, chimneys
- Ventilation work described
- Tear-off and disposal included or excluded
- How damaged decking is handled and priced
- Who confirms permit needs with the City of Oak Harbor or your local jurisdiction before work starts
- Date of the quote, since material pricing can change
- Payment schedule and any payment options, asked in writing
Mistakes That Can Raise Metal Roof Cost or Lead to Rework
Metal roof cost can climb after the fact when the estimate skipped details that later need fixing. The points below are common risks to ask about, not predictions for any particular roof.
Choosing on unit price alone. A low per-square-foot number can leave out trim, flashing or decking repair that shows up later as change orders.
Underestimating the details. Wind Proof Roofing LLC's owner focuses on "the details that prevent leaks long-term: flashing, valleys, ventilation, and clean transitions." Ask any installer how they handle each of those areas on your roof.
Ignoring ventilation and moisture. Metal panels sit over the attic, so airflow and the moisture barrier deserve a clear plan in the scope.
Getting an Accurate Metal Roof Price in the Whidbey Island and Anacortes Area
An accurate metal roof price for a specific home starts with an inspection rather than a calculator. Wind Proof Roofing LLC describes its inspections as "walking the roof, documenting what we see, explaining why things fail, and outlining options, not shortcuts."
The company is owned by Bruno Cantoli, who has more than 16 years of hands-on roofing experience in the Pacific Northwest and started roofing at 15 years old. He states that he stays directly involved in projects, with a clear scope, solid documentation and straightforward communication from inspection through completion.
Before signing with any contractor, verify registration with Washington L&I. Wind Proof Roofing LLC is a registered Washington construction contractor under L&I registration WINDPPR816P1, which you can check at the L&I verify tool.