Columbia Power Washing Pros Roof Cleaning
Roof Cleaning and Soft Washing in Columbia, SC
Roof cleaning in Columbia, SC means a soft wash, never a pressure washer wand on the shingles. Columbia Power Washing Pros connects homeowners with local crews who treat the black streaks on asphalt shingle roofs at low pressure, so the algae dies and the protective granules stay on the roof where they belong.
- Call anytime
- Serving Richland and Lexington counties, SC
- Independent local cleaning contractors

What Those Black Streaks Are
The dark streaks running down shingle roofs across the Midlands are usually algae. They show up first on shaded, north-facing slopes and under trees. They don't wash off with a simple rinse, and they come back if the growth isn't killed.
Algae
Dark streaks that follow the slope of the roof.
Moss
Green clumps that hold moisture against the shingles, often near valleys and under overhanging limbs.
Lichen
Crusty spots that grip tightly. They need dwell time and patience, not force.
Why Not Pressure Wash a Roof
High pressure knocks the granules off asphalt shingles. Those granules protect the shingle from sun, so stripping them shortens the roof's life. Pressure can also drive water under the shingle tabs. A soft wash treats the growth at low pressure and lets the cleaner do the work.
Metal Roofs
Metal roofs get the same low-pressure approach, with attention to the coating and fasteners.
Tile and Slate
Less common in Columbia, but they need careful handling and good footing.
Protecting the Rest of the House
Runoff from a roof wash travels down gutters and onto plants. A crew should wet plants before and rinse them after, protect downspout outlets, and rinse siding and windows under the roof line. Ask how they handle gutters and landscaping before you book.
Keeping It Clean Longer
Trimming limbs that shade the roof lets it dry out faster after rain. Gutters that drain well help too. Many homes need a roof wash again after a few years, depending on shade.
Price Factors
- Roof size and pitchSquare footage and how steep it is.
- StoriesOne-story or two-story access.
- GrowthLight streaks, heavy algae, moss or lichen.
- Roof typeAsphalt shingle, metal or tile.
- Plant protectionLandscaping under the drip line.
- Combined workAdding a house wash the same day.
Want the siding done too? See house washing. Back to Columbia Power Washing Pros.
Request a Quote
Upload a photo of the roof from the street and the shady side. We'll match you with a local crew that soft washes roofs.
How It Works
- Tell us about the jobCall anytime or use the quote form.
- We match you with a local crewYour details go to an independent local exterior cleaning contractor that works your area.
- You get a quoteThe contractor quotes and performs the work.
Call anytime.