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Architectural shingles run about $564 to $816 per square installed in Portland, which puts a typical 25-square roof at roughly $14,100 to $20,400. That is 20% above the Oregon baseline. 2026 planning estimates, not quotes.
Roof replacement in Portland, Oregon runs roughly 20% above the Oregon state baseline in 2026, driven by local labor rates, permit fees, and code requirements. A typical 25-square asphalt shingle roof here comes to about $14,100–$20,400 installed. Heavy moss zone; zinc/copper strips standard. Use this guide to size a per-square budget for asphalt shingles, standing-seam metal, or concrete/clay tile on a typical Portland home, then refine your estimate with our project estimator.
A roof replacement in Portland, OR costs about $14,100 – $20,400 for a typical 25-square asphalt shingle roof — $564 – $816 per square installed with tear-off. Standing-seam metal runs $1,128 – $1,752 per square. These are 2026 planning figures: the Oregon baseline scaled by Portland's local factor of 1.20.
Portland runs about 20% above the Oregon state baseline, so the state figures are scaled by 1.20 to give the local ranges below.
| Material | Per square installed | 20 squares | 25 squares | 30 squares |
|---|---|---|---|---|
| Architectural asphalt shingles | $564 – $816 | $11,280 – $16,320 | $14,100 – $20,400 | $16,920 – $24,480 |
| Standing-seam metal | $1,128 – $1,752 | $22,560 – $35,040 | $28,200 – $43,800 | $33,840 – $52,560 |
| Concrete or clay tile | $1,500 – $2,256 | $30,000 – $45,120 | $37,500 – $56,400 | $45,000 – $67,680 |
Figures are per square — 100 square feet of finished roof — for installed work including tear-off, and are 2026 planning estimates rather than quoted prices. Squares shown allow for a typical 6/12 pitch and 10% waste. Always get three written quotes before committing.
| Roof size | Squares | Asphalt shingle range |
|---|---|---|
| 1,200 sq ft footprint | 15 | $8,460 – $12,240 |
| 1,500 sq ft footprint | 18 | $10,152 – $14,688 |
| 2,000 sq ft footprint | 25 | $14,100 – $20,400 |
| 2,500 sq ft footprint | 31 | $17,484 – $25,296 |
| 3,000 sq ft footprint | 37 | $20,868 – $30,192 |
The Oregon state permit average is around $280; large metros frequently sit above that and may add inspection or scaffolding requirements of their own.
| House size | One storey | Two storeys |
|---|---|---|
| 1,000 sq ft house | 12 sq · $6,768 – $9,792 | 6 sq · $3,384 – $4,896 |
| 1,300 sq ft house | 16 sq · $9,024 – $13,056 | 8 sq · $4,512 – $6,528 |
| 1,500 sq ft house | 18 sq · $10,152 – $14,688 | 9 sq · $5,076 – $7,344 |
| 1,800 sq ft house | 22 sq · $12,408 – $17,952 | 11 sq · $6,204 – $8,976 |
| 2,000 sq ft house | 25 sq · $14,100 – $20,400 | 12 sq · $6,768 – $9,792 |
| 2,500 sq ft house | 31 sq · $17,484 – $25,296 | 15 sq · $8,460 – $12,240 |
| 3,000 sq ft house | 37 sq · $20,868 – $30,192 | 18 sq · $10,152 – $14,688 |
Flat and low-slope roofs are priced differently from shingles: they use membranes (TPO, EPDM, modified bitumen) or spray foam with a protective coating, and are usually quoted per square foot of roof area. If your Portland home has a flat roof, size it with the flat roof calculator and ask roofers to quote the membrane or foam system, its thickness and the coating warranty separately.
How Portland compares with the rest of the country, for 14 materials: roof cost per square foot.
Getting quotes from crews that also work the next metro over? The same 25-square shingle roof is estimated at Seattle, WA (about $16,250 – $23,400 for 25 squares), Boise, ID (about $9,975 – $14,250 for 25 squares), Las Vegas, NV (about $11,550 – $16,538 for 25 squares), Los Angeles, CA (about $17,213 – $24,638 for 25 squares), Anchorage, AK (about $18,125 – $26,100 for 25 squares). Each figure is that city's own multiplier on its state baseline.
A typical 25-square asphalt shingle roof in Portland works out at roughly $14,100 – $20,400 installed. That is the Oregon baseline scaled by the local factor of 1.20.
A one-storey 1,500 sq ft house has about 18 squares of roof at a 6/12 pitch with 10% waste, so roughly $10,152 – $14,688 for architectural shingles in Portland. A two-storey house of the same floor area has about half the roof.
Heavy moss zone; zinc/copper strips standard. Metro labour rates, permit and inspection requirements, and disposal fees all differ from the state average, which is what the 1.20 multiplier represents.
Measure your roof in squares, then get three written, itemised quotes from licensed and insured local roofers on the same scope. Compare the per-square price and check each quote covers tear-off, decking, underlayment, flashing, ventilation, disposal and the permit.
In almost every jurisdiction yes, and a licensed contractor will pull it as part of the job. Budget roughly $175–$450 for the fee, but check with the Portland building department, which sets it. Replacing a roof without one can cause problems at resale and can give an insurer grounds to dispute a later claim.
Three, from licensed and insured local contractors, each written against the same scope. Ask specifically whether flashing, drip edge, underlayment, ridge vent and decking replacement are included, because that is where quotes usually differ.