Those black streaks are algae feeding on the shingle, and high pressure is the wrong tool for it — it strips the protective granules and can void the roof warranty. Soft washing uses low pressure and a cleaning solution instead, killing the growth at the root so the roof comes clean and stays intact.
Our Process
Get a Quote
Send us the details or let us take a look — surface type, height, condition and access. We price it up front, in writing, and tell you exactly what is included.
Inspect the Surface
We check what we are washing first. Shingles, painted siding and screens do not take high pressure, and knowing which surface is which is what stops a cleaning job becoming a repair job.
Prep & Protect
Plants covered and watered down, fixtures and openings closed off, and the surrounding area shielded before we start.
Soft Wash
Low pressure with a cleaning solution that does the work chemically instead of mechanically — it lifts algae, mold and mildew at the root rather than blasting the surface.
Rinse & Check
A thorough rinse, then a walk-around to confirm the whole surface is even and nothing was left behind.
Written Quote
Sky High Pressure Washing offers written, no-obligation quotes. Tell us about your job and we'll send a clear written price.