ATX Clean Pro Wash provides professional roof cleaning services using a proven soft wash process that safely removes black streaks, algae, moss, lichen, and organic buildup — without damaging shingles or voiding warranties.
Roof stains aren't just cosmetic — they're caused by algae and organic growth that break down roofing materials over time. Our roof cleaning service uses low-pressure soft washing, the method recommended by roofing manufacturers.
The dark streaks running down most Austin roofs aren't dirt or soot — they're a blue-green algae called Gloeocapsa magma. It feeds on the limestone filler in asphalt shingles, which is why it's so common here, and it spreads as airborne spores from roof to roof. Left alone, the colony holds moisture against the shingles, accelerates granule loss, and shortens the life of the roof — and it drops your curb appeal noticeably, which matters if you're selling.
The Asphalt Roofing Manufacturers Association (ARMA) explicitly recommends low-pressure cleaning with a chemical treatment — not pressure washing — for one clear reason: pressure washing strips the protective granules off shingles and can void your manufacturer warranty. Our soft wash applies a roof-safe biocide that kills the algae and its spore layer at the root, including the part pressure washing physically can't reach. We protect gutters, downspouts, and landscaping throughout, and rinse everything down when we're done.
Because the treatment kills the spore layer, results last roughly 4–6 years — versus 12–18 months for a pressure wash that only removes what's visible on the surface.
Soft wash roof cleaning starts at $375 for a standard single-story asphalt shingle roof. From there:
A gutter rinse-out is included with every roof cleaning, and we flag any other roof issues we notice while we're up there.
Fast, no-obligation estimates with guaranteed fair pricing. Most quotes delivered same day.