Roof replacement cost
Plan your roof replacement project with a clear scope and an itemized proposal. This guide separates the published benchmarks for this topic from product-only prices.
Price basis: Benchmarks reviewed October 24, 2026. They apply to the scope and market stated below. National and other-city figures are planning references, not verified Portland Metro quotes.
Installation and project costs
Compare each alternative separately. Installation is included only where the stated scope includes it; overlapping totals should not be added.
| Project or reference | Published benchmark | Basis and scope |
|---|---|---|
| Roof replacement cost — Roof replacement | $5,700 – $16,000 | average project, scope-dependent |
| Roof replacement cost — Asphalt shingles | $3 – $6 | per sq ft installed |
| Roof replacement cost — Metal roofing | $5 – $16 | per sq ft installed |
| Roof replacement cost — Flat roofing | $3 – $11 | per sq ft installed |
Labor cost
These are professional-time or labor-only figures. Check whether materials, permits, disposal and finish repairs are included in your quote.
| Project or reference | Published benchmark | Basis and scope |
|---|---|---|
| Roof replacement cost — Standard roofing labor | $150 – $300 | per roofing square; installation labor only |
Define the scope before requesting bids
- Describe the existing condition, the desired result and the exact location of the work.
- Provide measurements, quantities and photos so bidders can price the same scope.
- Ask for separate allowances for preparation, removal, installation and finish repairs where they apply.
- Confirm products, permits, site access, disposal, schedule and exclusions in writing.
Compare the proposals
Match the units and inclusions shown in the price tables. Product-only, labor-only and complete-project figures cover different work. For a Portland Metro proposal, have a local professional confirm the property conditions and the current price.
Material cost
These are purchase-only allowances. Confirm product specifications, quantities and delivery. Do not add them to a project total that already includes materials.
| Product or reference | Published benchmark | Basis and scope |
|---|---|---|
| Roof replacement cost — 3-tab asphalt shingles | $80 – $130 | per roofing square, material only |
| Roof replacement cost — Architectural shingles | $100 – $250 | per roofing square, material only |
| Roof replacement cost — Metal roofing | $100 – $800 | per roofing square, material only |