Skip to main content
Monster Pro Wash

Professional Roof Cleaning in Columbia, SC

Remove Black Streaks, Moss & Algae Safely

Remove ugly black streaks, moss, lichen, and algae from your roof safely with our manufacturer-recommended soft wash method.

Get Your Free Estimate

Takes less than 30 seconds

5-Star Rated · Free Estimates · No Obligation

Why Roof Cleaning Matters

Those dark black streaks running down your roof are not just dirt. They are a cyanobacterium called Gloeocapsa magma, and they are literally eating your shingles. This organism feeds on the limestone filler in asphalt shingles, and as it spreads across your roof, it retains moisture against the shingle surface, accelerating granule loss and reducing the lifespan of your roof. In the Columbia, SC area, where humidity and warm temperatures create ideal conditions for this growth, it is one of the most common roofing issues homeowners face. You can also see green algae, moss, and lichen establishing on roofs, particularly in shaded areas.

Monster Pro Wash provides professional roof cleaning using the soft wash method, which is the only method recommended by shingle manufacturers including GAF, CertainTeed, Owens Corning, and IKO. We never, under any circumstances, use high-pressure washing on roofing materials. Pressure washing a roof voids your warranty, strips protective granules, and causes irreversible damage. Our soft wash process applies a cleaning solution at virtually no pressure, allowing the solution to kill the bacteria, algae, moss, and lichen without any mechanical force on the shingles.

Our roof cleaning service is available for asphalt shingle roofs, tile roofs, metal roofs, cedar shake roofs, and flat roofs throughout Columbia, Lexington, Irmo, and the SC Midlands. The results are dramatic: those dark streaks disappear, and your roof's original color is restored. Beyond the aesthetic improvement, roof cleaning extends the life of your roofing material by removing the organisms that cause premature deterioration. It can also improve your home's energy efficiency, since dark, algae-covered roofs absorb more heat than clean, reflective ones.

What We Clean

Asphalt shingle roofs
Concrete and clay tile roofs
Metal roofing
Cedar shake roofs
Flat roofs (TPO/EPDM)

Our Process

What's Included in Our Roof Cleaning

1

Roof and Property Assessment

We inspect the roof type, identify the types of growth present (algae, moss, lichen), and evaluate the surrounding property to plan protection for landscaping, vehicles, and outdoor items.

2

Property Protection

We pre-wet all landscaping, cover sensitive plants, move outdoor furniture and vehicles away from the drip line, and take all necessary precautions to protect your property from overspray and runoff.

3

Soft Wash Solution Application

We apply our cleaning solution across the entire roof surface at extremely low pressure, ensuring even coverage. The solution kills algae, bacteria, moss, and lichen on contact and continues working over the following days.

4

Rinse and Property Cleanup

Depending on the roof type, we either allow the solution to rinse naturally with the next rain or perform a gentle rinse. We thoroughly rinse all landscaping and surrounding surfaces and return the property to its original condition.

Roof Cleaning FAQs

Will soft washing void my roof warranty?
No. Soft washing is the cleaning method recommended by all major shingle manufacturers including GAF, CertainTeed, and Owens Corning. In fact, pressure washing your roof is what voids the warranty. Our method follows the guidelines established by the Asphalt Roofing Manufacturers Association (ARMA).
What are the black streaks on my roof?
The black streaks are caused by Gloeocapsa magma, a type of cyanobacterium (blue-green algae) that feeds on the limestone in asphalt shingles. It is extremely common in humid, warm climates like the SC Midlands. It is not just cosmetic; it actually accelerates shingle deterioration by retaining moisture and consuming the roofing material.
How long does a roof cleaning last?
A professional soft wash roof cleaning typically keeps your roof clean for 2-5 years, depending on factors like shade coverage, proximity to trees, and the orientation of the roof. North-facing roof planes and heavily shaded areas may see regrowth sooner. Most homeowners in the Columbia area get their roof cleaned every 3-4 years.
Is roof cleaning safe for my landscaping?
We take extensive precautions to protect your landscaping. We pre-wet all plants, shrubs, and grass before and after the cleaning process. We also cover particularly sensitive or valuable plants. Our solution is diluted by the time it reaches the ground, and the pre-wetting creates a protective barrier. We have cleaned thousands of roofs without landscape damage.
Can you clean tile or metal roofs?
Yes. We clean all residential roof types including asphalt shingles, concrete tile, clay tile, metal roofing, cedar shake, and flat (TPO/EPDM) roofs. Each material requires a slightly different approach and cleaning solution concentration, which is why we assess the roof before every job.

Contact Monster Pro Wash

Ready for a Fresh Look? Call Us Today!

Call or message us now and let us take care of all your exterior cleaning needs.

Call

(803) 239-1473

Email

monsterprowash@gmail.com

Message

Facebook Messenger