Anderson roofs, including houses in Northlake, Centerville, Midway Ridge, and Lake Hartwell Providence, streak black in the same humid pattern as the rest of the Upstate. The algae is usually Gloeocapsa magma. Near Lake Hartwell, shade and moisture hang on a bit longer, and WYFF's pollen coverage described the yellow pine pollen coat reaching the lake itself in spring. That pine pollen, mostly loblolly according to Clemson Extension, lands on shingles from late March through April and then the summer heat darkens the colonies.
Do not pressure wash those shingles to match a clean driveway. ARMA says no pressure washer on asphalt roofs. GAF says granules come loose. Soft washing is the repair-sparing method: low pressure, a cleaning solution, dwell, rinse. Anderson County is not Greenville County. Ask about runoff anyway, particularly on lake streets where wash water should not be an afterthought.
Published ranges are $450–$700 for a typical cleaning and about $0.30–$0.75 per square foot. That is a national cost-guide range; local quotes vary. There is no separate Anderson price list in those guides. Pros on this page rank with up to three Top Spots, then Featured, then the rest. The $40 deposit is credited to the job.
What roof soft washing costs in Anderson
We have not found reliable Anderson-specific price data, so these are national ranges. A quote in Anderson County still depends on the property. These figures are a national cost-guide range; local quotes vary.
| Roof | National typical range |
|---|---|
| Typical roof cleaning | $450–$700 |
| Soft wash | $0.30–$0.75 per sq ft |
| About a 1,700 sq ft roof | $510–$1,275 |
These figures are a national cost-guide range; local quotes vary.
Source: Angi, “How Much Does It Cost to Pressure Wash a House?” (updated Oct 2026); Today's Homeowner, roof cleaning cost.
Soft wash vs. pressure wash
Asphalt shingles in Anderson should be soft washed, not pressure washed. Black streaks around Northlake are usually Gloeocapsa magma. The Asphalt Roofing Manufacturers Association says to keep a pressure washer off shingles, and GAF says power washing can dislodge granules. Use a gentle bleach-and-water mix, let it dwell, and rinse at low pressure. Anderson is in Anderson County, near Lake Hartwell. Ask how rinse water is kept out of storm drains. Greenville County's ordinance is not the local rule.
How booking works
- Pick a Anderson pro from the listings on this page. Up to three Top Spots lead, then Featured profiles, then the rest. Featured and Top Spot are paid placement, and the badges say so.
- Choose a time and pay the $40 deposit. It is credited to your job, not an extra fee. If the pro declines, the deposit is refunded.
- The pro confirms, does the work, and you pay them the balance.
Spring weeks fill first. For a late April or May visit in Anderson, booking in February or March leaves more open times.
Nearby
- roof soft washing nearby: roof soft washing in Easley
- Also in Anderson: house washing in Anderson · driveway cleaning in Anderson · deck and fence cleaning in Anderson · gutter brightening in Anderson
- All exterior cleaning in Anderson · Roof Soft Washing across the Upstate
FAQ
How much does roof soft washing cost in Anderson, SC?
National guides put a typical roof cleaning at $450–$700. Soft washing often runs about $0.30–$0.75 per square foot, or roughly $510–$1,275 for a 1,700 square foot roof. Pitch and shade around Northlake and Centerville change the Anderson quote. That is a national cost-guide range; local quotes vary.
What are the black streaks on roofs in Anderson?
They are usually Gloeocapsa magma, an algae that thrives in warm, humid weather. Shaded slopes near Northlake and Centerville in Anderson County streak the darkest. Pine pollen from late March through April adds another film. It is not dirt a garden hose will remove.
Can I pressure wash a roof in Anderson?
No. The Asphalt Roofing Manufacturers Association says not to use a pressure washer on asphalt shingles, and GAF says power washing can dislodge granules. A Anderson roof should be soft washed: a gentle solution, dwell time, and a low-pressure rinse.
When should I book roof cleaning in Anderson?
After the heaviest pine pollen, late April into May, is a common time in Anderson, because pollen and humidity both feed growth on Anderson County roofs. Spring appointments book up, so earlier reservations leave more choices.
Will a roof soft wash in Anderson harm plants or storm drains?
The solution can burn plants if it is not controlled. Ask how plantings are wetted and rinsed. Anderson is in Anderson County, near Lake Hartwell. Ask how rinse water is kept out of storm drains. Greenville County's ordinance is not the local rule.
Is the $40 deposit an extra charge in Anderson?
No. The $40 deposit is credited to the roof soft washing job in Anderson, and you pay the pro the remaining balance. If the pro declines the booking, the deposit is refunded.