Basic
$4.87 – $9.73 per sq ft
45-mil black EPDM membrane fully adhered after one-layer tear-off, taped seams, standard flashings and drip edge
Photo: Crownbuild · CC BY-SA 3.0 · Source
How Much Does EPDM Roof Cost in Seattle, Washington?
Install a fully adhered or mechanically attached EPDM rubber membrane on a low-slope roof, including tear-off of one layer and flashing.
EPDM Roof in Seattle, Washington typically costs $5.73 to $11 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
EPDM Roof in Seattle, Washington
$5.73 – $11
per sq ftPrices in Seattle are 19.0% higher than the national average for epdm roof.
National average: $5 – $10 per sq ft
What you get at each price level
Standard
$5.73 – $11 per sq ft
60-mil black EPDM fully adhered over a new cover board, seam tape, pressure-sensitive flashings and metal edge trim
Premium
$7.16 – $14 per sq ft
60-mil reinforced EPDM fully adhered over a cover board, wider seam tape, preformed corners and pipe boots, heavier edge metal
Cost Breakdown in Seattle
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $2.34 – $4.68 | sq ft |
| Labor | labor | $2.35 – $4.69 | sq ft |
| Supplies & Other | supplies | $0.62 – $1.25 | sq ft |
| Equipment & Disposal | equipment | $0.42 – $0.83 | sq ft |
Prices adjusted for Seattle local market conditions.
EPDM Roof photo examples
Large flat roof finished with an EPDM rubber membrane and upstand edge
Photo: Crownbuild · CC BY-SA 3.0 · Source
Find a pro to do thisFlat roof covered with EPDM membrane, edge trim and a ladder
Photo: KVDP · Public domain · Source
Find a pro to do this
Cost Factors in Seattle, Washington
What Affects Pricing
- Materials ($2.25-$4.50 per square foot)
- Labor ($1.75-$3.50 per square foot)
- Supplies & Other ($0.60-$1.20 per square foot)
- Equipment & Disposal ($0.40-$0.80 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
- Litespeed: Commercial Roof Cost Per Sq Ft (2025), litespeedconstruction.com, retrieved Nov 2026
- Hixon's Roofing: TPO vs EPDM vs Modified Bitumen 2025, hixonsroofing.com, retrieved Nov 2026
- Flat Roof Costs in 2025: Real Prices by Region, flatroofinginsights.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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