Roof Cleaning Cost Estimator
Estimate your roof cleaning cost based on roof size, pitch, material type, and cleaning method. Prices reflect typical U.S. contractor rates.
Formula
Roof Cleaning Cost = Roof Area (sq ft) × Base Rate ($/sq ft) × Pitch Factor × Method Factor × Stories Factor × Condition Factor
Gutter Cleaning Cost = Gutter Linear Footage × $1.50 / lf
Total Cost = Roof Cleaning Cost + Gutter Cleaning Cost (minimum $150)
Base Rates by Material: Asphalt $0.10, Metal $0.13, Tile $0.16, Wood Shake $0.18, Slate $0.20 per sq ft
Pitch Factors: Low 1.00 ×, Moderate 1.10 ×, Steep 1.25 ×, Very Steep 1.45 ×
Method Factors: Soft Wash 1.00 ×, Chemical Only 1.15 ×, Pressure Wash 1.30 ×
Stories Factors: 1-story 1.00 ×, 2-story 1.15 ×, 3+-story 1.30 ×
Condition Factors: Light 1.00 ×, Moderate 1.15 ×, Heavy 1.35 ×
The estimated range is ±15% of the calculated total to reflect regional labor variation.
Assumptions & References
- Base rates derived from HomeAdvisor / Angi national average data (2023–2024): typical roof cleaning runs $0.10–$0.20/sq ft before adjustments.
- Soft washing is the recommended method for asphalt shingles per the Asphalt Roofing Manufacturers Association (ARMA); pressure washing can void warranties.
- Pitch factors reflect increased labor time and safety equipment costs for steeper roofs.
- Stories factors account for additional ladder/scaffolding setup and safety requirements.
- Gutter cleaning rate of $1.50/linear ft is consistent with national averages ($100–$250 for a typical home).
- A $150 minimum job charge is applied, reflecting typical contractor minimums.
- Estimates do not include roof repairs, moss-prevention treatments applied after cleaning, or permit fees (rarely required for cleaning).
- Prices are U.S.-based and may vary significantly by region, season, and local contractor rates.