At a glance
Typical (HA)
$296-$626
Average (HA)
$461
Soft wash
$0.30-$0.75/sq ft
Fixr
Hourly (HA)
$35-$80
By method (per sq ft, Fixr)
| Method | Cost per sq ft |
|---|---|
| Roof blow (debris only) | $0.05-$0.10 |
| Zinc oxide application | $0.05-$0.15 |
| Pressure wash | $0.20-$0.70 |
| Low-pressure clean | $0.30-$0.70 |
| Soft wash | $0.30-$0.75 |
What moves the price
- Material (HomeAdvisor): low-pressure washing for wood or slate $600-$1,100; high-pressure for metal $350-$700.
- Moss and algae: moss prevention treatments add $100-$250 (HomeAdvisor).
- Pitch and height drive setup and safety time.
- Bundles: Fixr lists gutter plus roof cleaning at $650-$1,100.
Get a number for your job
Operators: embed this calculator on your site
Run a washing or window business? Put the pressure washing price calculator on your own website so homeowners get a ballpark before they call. Free: enter your details and the copy-paste embed code appears right here.
Software for exterior cleaning operators
Pressure washing softwareQuotes, routes and invoices for washing crews (in development).Instant quotes from your price sheetMeasure, price and send before you leave the driveway.Window cleaning softwareBuilt around recurring rounds.Pricing: $39/mo founding rateOne published price, locked for founding members.
Frequently asked questions
How much does roof cleaning cost?
HomeAdvisor: $296-$626 typical, $461 average. Fixr: $450-$700 for 1,500 sq ft.
How much does roof soft washing cost?
Fixr lists $0.30-$0.75 per sq ft.
How do I mix chemicals for a roof soft wash?
Use the soft wash mix calculator for the dilution math and follow the product label.
Sources
- HomeAdvisor - Cost to pressure clean a roof (updated Jun 19, 2026) (accessed 2026-09-23)
- Fixr - Roof cleaning cost (updated Jan 31, 2025) (accessed 2026-09-23)