Those black streaks on your shingles are alive. We kill the algae at the source — safely, at low pressure — and bring the color back to your roof. ARMA-approved method, family-done.
Roof soft wash from $549 · quote in 24 hrsSoft-wash roof cleaning is the ARMA-recommended method for asphalt shingles, and the only safe method for metal and tile. We apply a low-pressure surfactant blend that kills Gloeocapsa magma — the algae behind those black streaks — and rinses cleanly without lifting a single granule off your shingles. Results stay visible for 3–5 years, not until the next rainstorm.
We climb up, check shingle condition, flag loose nails or damage, and tarp landscaping below.
Low-pressure surfactant rinse from a ground-or-ladder rig. We don't walk on brittle shingles.
The biocide does the killing during a controlled dwell — then a soft rinse carries it away.
Before-and-after photos for your records. Re-treat any spots that didn't lift fully on the first pass.
Soft wash is the method the Asphalt Roofing Manufacturers Association actually endorses. Your shingle warranty stays intact.
Roof work is where most pressure-washing companies get in trouble. Our crew is certified for fall protection and ladder safety.
We come back inside the season if anything looks off. The same family answers the phone every time.
North-slope shingles that hadn't seen sun in years. Soft-wash treatment, controlled dwell, gentle rinse. Color came back without a single shingle moved.
See more roof work
Gloeocapsa magma — an algae that feeds on the limestone filler in asphalt shingles. It usually starts on the north slope where it stays damp longest, then spreads. Power washing removes the symptom; soft wash kills it.
No. The Asphalt Roofing Manufacturers Association (ARMA) actually recommends soft wash as the approved cleaning method. Pressure washing voids most shingle warranties.
3–5 years on average for soft-washed asphalt roofs in central Ohio. A maintenance treatment in year two doubles that.
Yes. Soft wash is even better for metal and tile — pressure wash can warp panels and crack tiles. We adjust the surfactant blend by roof type.
Free, no-pressure quote within 24 hrs. Photos with the estimate so you can see exactly what we'd touch.