Black streaks off. Shingles left alone.
The dark stains running down a Lowcountry roof are algae, not dirt. They come off with a soft wash, never pressure on the shingles.
Roof Washing
What gets cleaned on this job.
Every surface on the list below comes with its own method. Tell us which ones you have and we will work out the order.
- Asphalt shinglesThe common Lowcountry roof, and the one algae loves most.
- Architectural shinglesHeavier profile, same streaks, same soft-wash approach.
- Metal roofsPanels and trim rinsed down without scouring the coating.
- Ridge & valleysThe lines where growth and debris collect first.
- Soffit & gutter lineThe roof edge usually gets washed with the roof.
- Sheds & detached garagesSmall roofs count too. They are the ones you see from the yard.
Roof washing
Streaks read as a tired house.
From the street, algae on the roof ages a home faster than anything else on it.
How we do it
Done right, it stays done longer.
A roof wash is chemistry and patience, not pressure. Treat the growth, let it work, rinse it down.
- Asphalt shingles: The common Lowcountry roof, and the one algae loves most.
- Architectural shingles: Heavier profile, same streaks, same soft-wash approach.
- Metal roofs: Panels and trim rinsed down without scouring the coating.
Roof washing questions
Asked and answered.
Will washing hurt my shingles?
Pressure would. A roof wash is a solution that kills the algae, then a gentle rinse, no blasting the granules off.
Why do the black streaks keep coming back?
They are a living organism, gloeocapsa magma, and it thrives in warm, humid air, which describes South Carolina most of the year. Killing it rather than just rinsing the surface is what buys you time before it returns.
The rest of the list
One call covers the whole outside.
Ready when you are
Get roof washing on the calendar.
Call or text with what you have got and roughly where you are. We will take it from there.
Get a quote
Tell us what needs
washing.
Send the details and you’ll get a call back. If it’s easier, call or text. The phone is the fastest way to reach us.
- Homes, businesses and fleets
- Soft wash for roofs and siding
- Summerville and the towns around it


