Metal Roof Installation Cost in Seattle 2026
Metal Roof Installation in Seattle costs between $16,950 and $56,500 in 2026, with the average around $28,250. Seattle pricing runs 41% above the US national average. Installation of a standing seam or metal panel roof with new underlayment, fasteners, and trim. Includes tear-off of the old roof and custom flashing at valleys and penetrations.
What metal roof installation includes in Seattle
Installation of a standing seam or metal panel roof with new underlayment, fasteners, and trim. Includes tear-off of the old roof and custom flashing at valleys and penetrations.
Typical time on site: 3 to 5 days. Local labor rate: $33/hour for an experienced roofing pro.
What changes the price of metal roof installation in Seattle
- Metal type and gauge
- Standing seam versus panels
- Roof complexity and cuts
- Tear-off of old roof
- Custom trim and flashing
A metal roof installation quote priced off statewide averages will be off by 10 to 20 percent for Seattle, because the metro has its own labor pool, material delivery distances, and permit timelines.
Seattle climate and demand for roofing
Mild winters with persistent rain (moss/moisture on roofs); rare snow loads; minimal AC historically but warming trend
Seattle permits for metal roof installation
Building department: Seattle Department of Construction and Inspections (SDCI). https://www.seattle.gov/sdci
Typical permit cost: $400 - $5,000 residential. Inspection time: 10-25 business days; plan check 6-12 weeks. Seattle rule: Seattle SDCI has strict energy code (Stretch Code). Tree ordinance affects site work. ADU streamlined permitting. WA L&I license required for all contractors.
Washington sales tax and licensing for Roofing
Washington sales tax: 6.5% + local (~9.3% combined avg) + 0.471% B&O. WASHINGTON TAXES CONTRACTOR LABOR. Retail Sales Tax applies to total construction contract (labor + materials) on speculative builders. Custom construction taxed differently.
State license: Washington Department of Labor and Industries (L&I), required: $117 (initial) + $12K bond + insurance.
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