Proudly Serving Charleston & Surrounding Areas
Commercial roof cleaning in Charleston, SC uses the soft-washing method to kill algae and remove black streaks from asphalt shingle, metal, and TPO roofs. Preferred Services Group uses ARMA-approved low-pressure techniques that protect roofing warranties and last 3–5x longer than pressure washing. Service available across Charleston, Summerville, Moncks Corner, Goose Creek, and North Charleston. Call (843) 478-2114.
The Right Way to Clean a Commercial Roof
Those black streaks on your roof aren't dirt — they're a living algae called Gloeocapsa magma that feeds on the limestone in shingles. Pressure washing it just blasts off granules and voids your warranty. Soft washing, the method recommended by ARMA and major shingle manufacturers, kills the algae at the root using low-pressure biodegradable solutions.
We clean asphalt shingle, metal panel, TPO membrane, and modified bitumen roofs across the Charleston area — restoring curb appeal and extending roof life by years.
What's Included
ARMA-Approved
Soft washing is the only manufacturer-approved cleaning method for asphalt shingle roofs.
Algae & Streak Removal
Black streaks and algae killed at the root, not just rinsed off the surface.
Low-Pressure Application
Pressure dialed down to protect granules, sealants, and panel coatings.
Warranty-Safe
Cleaning methods preserve manufacturer warranty on shingle and TPO roofs.
Long-Lasting Results
Soft washing keeps roofs clean 3–5x longer than pressure washing.
Plant Protection
Landscape pre-rinse and post-rinse to protect surrounding plants.
What We Cover
Roof Cleaning by Service Area
Local pages with city-specific information, neighborhoods we cover, and frequently asked questions.