Basic
$146 – $389 each
Burner and combustion chamber brushed and vacuumed, water side flushed, basic safety check

Professional cleaning/descaling of a residential hot-water or steam boiler with a basic inspection (not repairs).
Clean Water Boiler in Seattle, Washington typically costs $172 to $458 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Seattle are 19.0% higher than the national average for clean water boiler.
National average: $150 – $400 each
$146 – $389 each
Burner and combustion chamber brushed and vacuumed, water side flushed, basic safety check
$172 – $458 each
Fireside surfaces cleaned, water side flushed, combustion and safety controls tested, relief valve checked
$215 – $573 each
Fireside fully cleaned, descaling flush, combustion analysis with printout, relief valve, low-water cutoff and controls tested
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $71 – $187 | each |
| Labor | labor | $70 – $188 | each |
| Supplies & Other | supplies | $19 – $50 | each |
| Equipment & Disposal | equipment | $12 – $33 | each |
Labor costs in Seattle run proportionally higher than materials, which may favor material-heavy solutions.
Connect with local clean water boiler contractors in Seattle for personalized quotes based on your specific project.