Shamrock Pro Wash
Summerville, SC

Professional Roof Cleaning

Those black streaks on your roof aren't just ugly — they're algae eating away at your shingles. We use the ARMA-recommended soft wash method to safely remove them without damaging your roof or voiding your warranty.

Signs Your Roof Needs Cleaning

Black streaks or dark staining on shingles
Green or brown moss patches
White or gray lichen growth
Discoloration on north-facing or shaded slopes
Visible algae or mildew buildup

Benefits of Professional Roof Cleaning

Removes black streaks caused by Gloeocapsa Magma algae
Eliminates moss, lichen, and mildew that degrade shingles
ARMA-recommended soft wash method — no pressure damage
Extends roof lifespan and protects your warranty
Restores original color and improves curb appeal
Prevents costly premature roof replacement

Our Roof Cleaning Process

01

Roof Inspection

We inspect your roof type, pitch, and level of organic growth before recommending a cleaning approach.

02

Landscape & Gutter Protection

We cover and pre-wet surrounding plants, gutters, and surfaces to protect them during the cleaning process.

03

Soft Wash Application

We apply a diluted sodium hypochlorite solution at low pressure — the ARMA-recommended method for asphalt shingles.

04

Dwell & Kill

The solution dwells on the roof to kill algae, moss, and lichen at the root — not just on the surface.

05

Gentle Rinse

We rinse the roof and all surrounding areas thoroughly, leaving your home clean and your landscaping unharmed.

Roof Cleaning FAQs

What causes black streaks on my roof?

Black streaks are caused by Gloeocapsa Magma, a type of algae that feeds on the limestone filler in asphalt shingles. It spreads quickly in humid climates like Summerville, SC and will continue to grow and damage your shingles if left untreated.

Is roof cleaning safe for my shingles?

Yes — when done correctly using the soft wash method. The Asphalt Roofing Manufacturers Association (ARMA) specifically recommends low-pressure soft washing over high-pressure washing, which can strip granules and void your warranty.

How often should I clean my roof?

In the Lowcountry, most roofs need cleaning every 2–3 years due to the heat and humidity. Roofs with heavy tree coverage or north-facing slopes may need it more frequently.

Will roof cleaning void my warranty?

No — soft washing is the manufacturer-recommended cleaning method and will not void your roof warranty. High-pressure washing, however, can void warranties and damage shingles.

Shamrock Pro Wash

Summerville's Expert Pressure Washing Solutions. Eco-friendly, affordable, and trusted by hundreds of homeowners.

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Hours

Mon–Sat: 7:00 AM – 7:00 PM

Sun: 1:00 PM – 5:00 PM

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