Those black streaks on Austin roofs are not dirt. They are Gloeocapsa Magma, a hardy algae that feeds on the limestone filler in asphalt shingles and spreads fast in our heat and humidity. Hi-Tech Power Wash soft washes roofs to kill the algae at the root, restoring your roof's appearance without the high pressure that strips granules and shortens shingle life.
Never let anyone pressure wash your roof
High pressure blasts the protective granules off your shingles and can void your roofing warranty. Soft washing is the only method approved by shingle manufacturers and the ARMA. We apply a treatment that kills the algae, then let time and rain rinse it. The streaks fade, and the treatment helps keep them from coming back for years.
Our process
- 1Inspect the roof and protect gutters, landscaping, and downspouts.
- 2Apply a manufacturer-approved soft wash treatment to the shingles.
- 3Let the solution kill the algae and organic growth at the root.
- 4Rinse landscaping and confirm runoff is handled safely.
Real roof washing results in Austin
Frequently asked questions
How much does roof washing cost in Austin?
Single-story asphalt roofs start around $399. Larger or two-story homes run $549 to $899 depending on footprint and access. Get an instant ballpark with our estimate tool.
Why does my Austin roof have black streaks?
Black streaks are caused by Gloeocapsa Magma algae that feeds on the limestone granules in shingles. Austin's heat and humidity make it spread quickly. Soft washing kills it at the root so it stays gone for years.
Will roof washing void my warranty?
Our soft wash method is the approach approved by shingle manufacturers and roofing associations. High pressure washing is what voids warranties, and we never use it on roofs.
How often should an Austin roof be cleaned?
Most Austin roofs benefit from a soft wash every two to three years, sooner on north-facing slopes and under heavy tree cover where algae grows fastest.
Is the treatment safe for my plants and gutters?
Yes. We protect and pre-wet landscaping, control runoff, and rinse plants after the job so your yard is protected throughout.
See your roof washing price in 30 seconds
Instant ballpark pricing. No obligation. Fully insured.