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3350 Scott Blvd, Santa Clara CA 95054
Roof Cleaning
Moss, algae, and lichen don't just look bad — they shorten roof life by holding moisture against the surface.
Get a Free Quote +1 (408) 540-3870What We Do
North-facing slopes under tree cover in the Bay Area grow moss within five years. Once it's established it lifts shingle tabs, traps water, and accelerates granule loss. We use low-pressure soft-wash methods that kill biological growth without blasting the granules off your shingles like high-pressure washing does.
- 20+ years serving Santa Clara, Alameda, San Mateo, and surrounding counties
- Fully licensed (CSLB #1092531), bonded, and insured
- Manufacturer-certified installers for major roofing brands
- Written warranties on workmanship and materials
What Sets This Service Apart
Three commitments that show up on every job, every time.
Soft-Wash Method
Low-pressure application of biodegradable cleaning solution — not a power washer.
Moss & Algae Removal
Treatment kills existing growth and inhibits regrowth for 2–5 years.
Zinc Strip Install
Optional zinc strips at the ridge release trace metal that prevents moss long-term.
Everything You Should Know
Soft-Wash vs Pressure Washing
Pressure washing strips the protective granules off asphalt shingles, voids most manufacturer warranties, and forces water under shingle tabs. The roofing industry standard is soft-wash: a biodegradable solution applied at garden-hose pressure that kills moss and algae chemically. The Wikipedia article on pressure washing covers the technique broadly; for the specific category, see roof cleaning.
Runoff and Environmental Responsibility
Roof cleaning runoff enters storm drains, which in most Bay Area cities flow untreated to the Bay. We use solutions that biodegrade and we contain runoff during application. The EPA stormwater program regulates what enters municipal systems — responsible contractors comply, careless ones don't.
Cleaning Is Part of Maintenance
Cleaning is most effective as part of an ongoing maintenance plan rather than a one-off after the problem is severe. Pair it with gutter service — the moss you clean off the roof will end up in the gutters within 48 hours.
From First Call to Final Walkthrough
A predictable, transparent process — no mystery, no surprise charges.
Contact
Call, text, or submit the form. We respond within one business day.
Assess
On-site or drone-based assessment. Photo-documented and explained.
Quote
Written, itemized estimate. No verbal handshakes, no vague line items.
Execute
Scheduled work, clean job site, written warranty on completion.
Common Questions
Will cleaning damage my shingles?
Not when done correctly with soft-wash methods. Pressure washing absolutely will. We never pressure wash asphalt roofs.
How often should I have my roof cleaned?
Every 2–4 years for most Bay Area properties. More often under heavy tree cover.
Will the moss come back?
It depends on shade and moisture. Zinc strips at the ridge significantly extend regrowth interval — often beyond 5 years.
Other Ways We Help
Most projects benefit from more than one service. Here's what commonly pairs with this one.
Ready to Talk About Your Roof Cleaning Project?
License #1092531 · 3350 Scott Blvd, Santa Clara CA 95054
+1 (408) 540-3870
Your reliable Bay Area roofing company offering expert roof installation, repair, and replacement services for both homes and businesses with guaranteed results.
License: 1092531
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Office Location
3350 Scott Blvd, Santa Clara CA 95054