HOW TO USE IT
How to use the Roof Cleaning Cost Calculator
- 1
Price by roof area: Roof cleaning prices by the area of the roof surface. Measure the footprint and multiply by pitch to get the true surface.
- 2
Choose the method: Soft wash uses low pressure and chemicals to clean without lifting shingles. Pressure washing is faster but riskier on asphalt.
- 3
Moss and algae add work: Heavy moss needs treatment and extra rinsing. Quote a moss surcharge and explain why.
- 4
Difficult access costs more: Steep pitches and tall roofs need more safety equipment and time. Add an access charge.
THE MATH
Roof cleaning calculation method
A 1,500 sq ft roof with soft wash, moss treatment and 8 labor hours at $45 totals about $1,135.Soft wash uses low pressure and chemicals to clean without lifting shingles. Pressure washing is faster but riskier on asphalt.
PRACTICAL EXAMPLE
Worked example for Roof cleaning
A 1,500 sq ft roof with soft wash, moss treatment and 8 labor hours at $45 totals about $1,135.
FAQ
Frequently asked questions
How to Estimate Roof Cleaning
A 1,500 sq ft roof with soft wash, moss treatment and 8 labor hours at $45 totals about $1,135.
What should I verify before using the result?
Soft wash protects shingles; pressure washing can strip granules. Recommend the gentler method.
Is this a final quote or design?
No. Use it as a planning estimate, then confirm measurements, local rates, product requirements, permits and jobsite conditions before bidding or building.