Basic
$0.14 – $0.42 per sq ft
Low-pressure soft wash of siding with a standard cleaning solution, rinsed top to bottom

Pressure or soft wash the exterior siding of a 1-2 story house, per sq ft of wall surface washed.
Power Wash a House in Boston, Massachusetts typically costs $0.16 to $0.49 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Boston are 14.0% higher than the national average for power wash a house.
National average: $0.15 – $0.45 per sq ft
$0.14 – $0.42 per sq ft
Low-pressure soft wash of siding with a standard cleaning solution, rinsed top to bottom
$0.16 – $0.49 per sq ft
Soft wash with mildew-killing solution, dwell time on stained areas, rinse, windows and outlets protected
$0.20 – $0.62 per sq ft
Soft wash with mildew treatment, hand-brushed problem spots, trim and gutter faces rinsed, plants pre-wet and rinsed
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $0.07 – $0.20 | sq ft |
| Labor | labor | $0.06 – $0.20 | sq ft |
| Supplies & Other | supplies | $0.02 – $0.06 | sq ft |
| Equipment & Disposal | equipment | $0.01 – $0.03 | sq ft |
Labor costs in Boston run proportionally higher than materials, which may favor material-heavy solutions.
Connect with local power wash a house contractors in Boston for personalized quotes based on your specific project.