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Roof cleaning cost calculator (2026)

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Cleaning off moss, algae, and black streaks can add years to a roof. Enter your roof area and cleaning method for a fast 2026 price range.

Estimated cleaning cost
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Steep, tall, or heavily soiled roofs cost more. Avoid high-pressure washing on shingles.

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What roof cleaning costs

Pros usually price by roof area or as a flat fee. Soft washing — low pressure plus a cleaning solution — is the safe method for asphalt shingles; high-pressure washing can strip granules and void a warranty. Heavy moss removal with treatment costs more. Most homes run $300–$800.

Cost ranges reflect 2026 U.S. installed prices (BLS producer/labor data, Remodeling Cost vs. Value, and manufacturer pricing). Your real price depends on your roof, region, and pro — see the full cost guide.

FAQ

Roof Cleaning Cost Calculator questions

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Most roof cleaning runs $300–$800, or about $0.30–$0.60 per sq ft for soft washing. Steep, tall, or moss-heavy roofs cost more.
Not on asphalt shingles — high pressure blasts off the protective granules. Pros use soft washing (low pressure plus a cleaning solution) to kill algae and moss safely.
Yes. Algae and moss hold moisture and can lift shingles, so removing them and treating the roof can add years and restore curb appeal — for far less than a replacement.
Every 2–5 years in humid or shaded areas prone to algae and moss, or whenever you see black streaks or green growth. Keeping nearby branches trimmed slows regrowth.

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