Roof Cleaning ยท Westerville, Ohio

Roof Cleaning in
Westerville, OH

Those black streaks are Gloeocapsa Magma โ€” a shingle-eating algae. Our soft wash kills it at the root, safely, without voiding your warranty. Serving Westerville and Franklin/Delaware County.

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Roof Cleaning in Westerville

Safe Soft Wash โ€” ARMA Compliant

Westerville's combination of significant tree canopy, summer humidity, and north-facing roof exposure creates near-ideal conditions for Gloeocapsa Magma algae โ€” the organism responsible for the black streaking you see on roofs throughout the community. Homes near Sharon Woods, beneath the mature oaks and maples in Cherrington Farms, and along the established corridors near Otterbein University are particularly susceptible. Our soft wash roof cleaning in Westerville kills the algae at the root safely.

The solution is not pressure washing your roof. High-pressure water strips the protective granule coating from asphalt shingles, voids most manufacturer warranties, and can force water under shingle laps โ€” the exact damage you're trying to prevent. The ARMA (Asphalt Roofing Manufacturers Association) specifically recommends against pressure washing asphalt roofs.

The right method is a soft wash โ€” low-pressure water delivery combined with a professional-grade algaecide that kills organic growth at the source. The treatment penetrates the shingle surface, kills the biological growth, and rinses clean without mechanical damage. Most treated roofs look dramatically improved within a single day and remain clean for 3โ€“5 years.

Central Ohio's weather makes roof algae a near-universal problem. The combination of summer humidity, shade from mature trees, and freeze-thaw moisture cycling creates ideal conditions for algae and moss colonization. Most Columbus-area homeowners with asphalt roofs older than 5 years have some level of Gloeocapsa Magma growth.

We document every roof cleaning job with before-and-after photos. For roofs with significant moss or lichen growth, we provide a realistic assessment of what the treatment will achieve and what timeline to expect for full clearing.

โœ”Asphalt shingle roofs โ€” all ages
โœ”Metal roofing systems
โœ”Concrete & clay tile roofs
โœ”Cedar shake & wood shingles
โœ”Black streak & algae removal
โœ”Moss & lichen treatment
โœ”Ridge cap & flashing areas
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Serving Westerville, OH

Roof Cleaning for Westerville Homeowners

We serve Westerville and all of Franklin/Delaware County. Same-day quotes. Trained crews. Before-and-after photos. Satisfaction guarantee on every job.

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Roof Cleaning in Westerville
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Roof Cleaning FAQ

Common Questions About Roof Cleaning

Almost always yes. The streaking running down from the ridge is the signature of Gloeocapsa Magma โ€” a cyanobacteria common throughout Ohio that degrades shingle granules over time.
Soft washing does not void manufacturer warranties. Most manufacturers actually recommend against pressure washing and endorse low-pressure chemical treatment as the correct method.
Most treated roofs stay clean for 3โ€“5 years in Ohio's climate. Roofs with heavy tree coverage and shade tend toward the shorter end of that range.
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