Solar Panel Cost in Washington: $9,446-$20,401 (2026)
Compare solar panel costs across 3 Washington cities. Pricing varies significantly by metro area — use our city-specific calculators for accurate local estimates.
TL;DR — Washington Solar Cost Costs
Solar Panel in Washington ranges from $9,446 to $20,401 depending on city, materials, and project size. Washington’s rain and moss require moisture-resistant materials and regular maintenance.
Solar Panel Cost by Washington City
Click any city below for a detailed interactive cost calculator with local material prices, labor rates, and permit requirements.
Washington Solar Cost Market Overview
Washington offers solar panel services across 3 major metros.
| City | Avg Cost Range | Labor Rate | Active Contractors |
|---|---|---|---|
| Seattle | $10,924 – $14,779 | 1356h sun/yr | 48 installers |
| Spokane | $15,079 – $20,401 | 1576h sun/yr | 13 installers |
| Tacoma | $9,446 – $12,779 | 1445h sun/yr | 16 installers |
Frequently Asked Questions — Washington Solar Cost
How much does solar panel cost in Washington?
Solar Panel in Washington costs $9,446 to $20,401 on average, depending on city, project size, and materials. Tacoma tends to be the most affordable market, while Spokane commands premium pricing.
Do Washington cities require permits for solar panel?
Most Washington cities require permits for major home improvement projects. Fees range from $146 to $245 depending on the municipality. Your contractor should handle the permit process.
When is the best time for solar panel in Washington?
The best time for roof replacement in Washington depends on your specific city. Generally, mild weather months offer the best conditions and pricing.
Solar Cost Calculators by State
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