City Guide 9 min read Updated 2026-02-01

Home Improvement Costs in Seattle 2026

Seattle area home improvement guide. Rain-focused projects, costs, and local considerations.

Seattle Cost Overview

Cost Index: 1.15-1.25 (15-25% above national average) Rain Country Priorities:
  • Roof quality (rain protection)
  • Gutter systems
  • Waterproofing
  • Mold prevention
  • Drainage systems

Seattle-Specific Costs

ProjectSeattle Range
Roof replacement$10,000-$20,000
Gutter system$1,500-$4,000
Basement waterproofing$3,000-$10,000
Siding (rain-resistant)$8,000-$18,000

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