Roof Cleaning · Cost
Roof cleaning cost
Roof cleaning typically costs $0.15 to $0.70 per square foot in 2026, or about $255 to $1,190 for a typical 1,700 square foot roof, according to Today's Homeowner. Soft washing - the method manufacturers recommend for asphalt shingles - runs higher, around $510 to $1,275, and heavy moss removal can reach roughly $1,200.
Written by Priya SharmaReviewed by Sarah Williams
Price is driven by four things: roof area, pitch, how bad the growth is, and access. A steep roof takes longer and needs more fall protection, so it costs more per square foot than a walkable one of the same size. Two-story with tight landscaping costs more than a single-story ranch.
Method changes the price a lot, and the cheapest method is the one you should not buy on an asphalt roof. EcoWatch's 2026 figures put chemical wash at $0.15-$0.30 per square foot and high-pressure washing at $0.15-$0.60, against $0.30-$0.80 for soft washing. High-pressure is cheap because it is fast, and it is fast because it blasts granules off your shingles.
Material matters too. Today's Homeowner puts average totals around $893 for asphalt or architectural shingles and clay tile, $765 for wood shake and slate, and $680 for metal. Add-ons are priced separately: moss removal and prevention treatment at $135-$300 per Today's Homeowner, or up to roughly $1,200 for manual moss removal on a badly infested 1,700 square foot roof per EcoWatch.
A quote far below the low end of these ranges is usually a signal, not a bargain. It typically means high pressure, no fall protection, no insurance, or no plan to protect your landscaping from runoff.
How to choose
Choosing roof cleaning on cost
The judgement calls that decide the bill, before anyone quotes you.
- Get the method named in the quote "Roof wash" is not a method. You want the words soft wash or low-pressure application in writing, plus a statement that no high-pressure equipment will be used on the shingles.
- Price by roof area, not by house square footage A 1,700 sq ft house with a steep roof has considerably more roof surface than 1,700 sq ft. Ask how they measured.
- Separate the moss line item Moss removal is extra work. Today's Homeowner puts moss removal and prevention at $135-$300; heavy manual removal can run far higher. Get it quoted distinctly so you can see what you are paying for.
- Ask what happens to the runoff The cleaning solution runs off onto your plants, your driveway, and your neighbor's. A professional quote should include landscape protection and pre-wetting. If it does not, ask why.
- Be suspicious of door-knock discounts Deep-discount roof cleaning is the classic vehicle for uninsured crews and pressure washing. The damage shows up as granule loss you will not notice until the roof ages early.
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Roof Cleaning Cost
Roof Moss Removal Cost
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About $0.15 to $0.70 per square foot in 2026, working out to roughly $255-$1,190 for a typical 1,700 square foot roof, per Today's Homeowner. Soft washing sits at the upper end, around $510-$1,275.
It takes longer. Soft washing applies a cleaning solution at low pressure, lets it dwell, and rinses gently. Pressure washing is faster because it strips growth mechanically - which also strips the protective granules off asphalt shingles.
Today's Homeowner puts moss removal and prevention at $135-$300 as an add-on. EcoWatch puts manual moss removal at $0.60-$1.00 per square foot, around $1,200 on a 1,700 square foot roof, where growth is heavy and has to be lifted by hand.
Yes. Today's Homeowner's averages run about $893 for asphalt shingles and clay tile, $765 for wood shake and slate, and $680 for metal. Fragile materials cost more because they need slower, more careful work.
Sources
Where these figures come from
Sources last checked
- Today's Homeowner - How Much Does Roof Cleaning Cost? (2026) · retrieved 2026-07-25
- EcoWatch - Roof Cleaning Costs (2026): Professional vs DIY · retrieved 2026-07-25
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