We cover 2 Washington metros. Installed siding in Washington typically runs about $4 to $16.25 per square foot depending on material and city (our estimate, scaled from national ranges). Climate here means cold winters and freeze-thaw cycles, rain, moisture and mild temperatures; commonly recommended materials include insulated vinyl, fiber cement and engineered wood.
Cities in Washington
Siding in Seattle
Vinyl ~$5.62–$10.25/sq ft installed
Siding in Spokane
Vinyl ~$4.50–$8.20/sq ft installed
Material costs in Washington (state average)
| Material | Installed cost / sq ft |
|---|---|
| Vinyl | $5.06 – $9.22 |
| Insulated vinyl | $6.75 – $12.38 |
| Engineered wood (e.g. LP SmartSide) | $5.62 – $11.25 |
| Fiber cement (e.g. James Hardie) | $6.75 – $14.62 |
| Wood (cedar, clapboard) | $6.75 – $15.75 |
| Metal / aluminum / steel | $5.62 – $13.50 |
| Stucco | $7.88 – $13.50 |
| Stone / stone veneer | $16.88 – $56.25 |
| Old siding removal (add-on) | $0.79 – $2.25 |
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Frequently asked questions
How much does siding cost in Washington?
Our estimate is about $4 to $16.25 per square foot installed, depending on material and city.
Do I need a permit for siding in Washington?
Many cities and counties require a permit for re-siding; your contractor should confirm and pull it.
Sources: national figures ($4–$13/sq ft installed, vinyl $4.50–$8.20/sq ft, materials $1–$12 and labor $1–$4/sq ft, old-siding removal $0.70–$2.00/sq ft, stone up to $50/sq ft) come from the SidingCostEstimate 2026 cost guide. Other material ranges, project totals, climate recommendations and city/state adjustments are SidingCostEstimate editorial estimates based on typical scope, materials and labor — not survey data. Always compare written quotes from licensed local contractors.