Basic
$4.87 – $12 per sq ft
Typical tear-off, 1-1/2 in. polyiso board, 45-mil white TPO mechanically fastened with hot-air welded seams
How Much Does TPO Roof Cost in Seattle, Washington?
Install a single-ply TPO membrane roof with insulation board on a flat or low-slope roof, including typical tear-off, per sq ft of roof.
TPO Roof in Seattle, Washington typically costs $5.73 to $14 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
TPO Roof in Seattle, Washington
$5.73 – $14
per sq ftPrices in Seattle are 19.0% higher than the national average for tpo roof.
National average: $5 – $12 per sq ft
What you get at each price level
Standard
$5.73 – $14 per sq ft
Typical tear-off, 2 in. polyiso board, 60-mil white TPO mechanically fastened, welded seams, TPO-clad metal edge
Premium
$7.16 – $17 per sq ft
Typical tear-off, two layers of polyiso with cover board, 60-mil fully adhered white TPO, welded seams, TPO-clad edge
Cost Breakdown in Seattle
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $2.34 – $5.62 | sq ft |
| Labor | labor | $2.35 – $5.63 | sq ft |
| Supplies & Other | supplies | $0.62 – $1.50 | sq ft |
| Equipment & Disposal | equipment | $0.42 – $1 | sq ft |
Prices adjusted for Seattle local market conditions.
Cost Factors in Seattle, Washington
What Affects Pricing
- Materials ($2.25-$5.40 per square foot)
- Labor ($1.75-$4.20 per square foot)
- Supplies & Other ($0.60-$1.44 per square foot)
- Equipment & Disposal ($0.40-$0.96 per square foot)
Local Price Adjustments
Material costs4.0% above avg
Labor costs34.0% above avg
Labor costs in Seattle run proportionally higher than materials, which may favor material-heavy solutions.
Frequently Asked Questions
References
- General Roofing: TPO roofing cost per square foot 2026, generalroof.com, retrieved Nov 2026
- Construction wages by metro and rural area, used for the labor adjustment by ZIP code, U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025
- Regional price parities for goods, used for the materials adjustment by ZIP code, U.S. Bureau of Economic Analysis, 2024
Get Free Estimates in Seattle
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