ROOF CLEANING
GILROY, CA

Gilroy's warm summers and wet winters create a cycle that accelerates moss and algae growth on roof surfaces — especially on north-facing sections and under tree shade. Insurance companies serving the Gilroy area, including State Farm, Farmers, and AAA, increasingly require roof cleaning documentation for policy renewal. Agricultural dust from surrounding fields also deposits on roof surfaces, creating a film that retains moisture and encourages organic growth.

Roof cleaning is priced individually based on roof size, pitch, material, and moss load — every job is different. Text (408) 476-3891 with your address and Matt will give you a firm quote within 30 minutes. No visit required before you decide.

Most Gilroy homes need roof cleaning every 2–3 years. Homes in Eagle Ridge and Las Animas with significant tree coverage may need more frequent treatment. If you've received an insurance notice, prioritize scheduling before the renewal deadline.

We assess your roof type before starting and choose the best cleaning method — whether that's soft-wash, low-pressure, or another approach. The goal is always to remove moss, algae and buildup effectively without damaging your specific roofing material. We'll tell you exactly what method we'll use when we quote.

Yes. We provide dated before-and-after photos and a professional invoice after every roof cleaning — exactly what State Farm, Farmers, AAA, and most other insurers require for policy renewal in Santa Clara County. Many Gilroy homeowners hire us specifically after receiving an insurance cancellation notice.

Most single-story Gilroy homes take 1–2 hours. Two-story or larger homes typically take 2–3 hours. We apply the treatment, clear all debris from the roof surface, and walk you through the results before we leave.

Those streaks are a hardy algae (Gloeocapsa magma) that feeds on the mineral filler in asphalt shingles and spreads by airborne spores — it needs shade and dew more than heavy rain, so north-facing and tree-shaded Gilroy roofs get it worst. We soft-wash to kill it at the root so it clears evenly and stays gone longer.

Often, yes. Santa Clara County insurers increasingly flag roof moss and algae as deferred maintenance, and some issue non-renewal notices over it. We send dated before-and-after photos and a professional invoice after every job — exactly the documentation they ask for.