The Bay Area's Exterior Cleaning Professionals

Yes — all estimates are free and done in person. We never quote over the phone without seeing the property first. We walk your home or commercial site, assess every surface, and provide a detailed quote with no hidden fees. Most Bay Area properties are quoted within 24 hours of your request.

Yes — when done correctly. We assess every surface before starting and choose the right method. Soft washing is used for delicate surfaces like stucco, siding, and roofing. High-pressure washing is reserved for concrete, brick, and pavers only. Using the wrong method on the wrong surface is exactly how damage happens — we never do that.

No. We use biodegradable, plant-safe, and pet-safe detergents on every job. Before we start, we pre-water your landscaping and cover any sensitive plants. We also follow California stormwater compliance guidelines — runoff is managed responsibly. Your family, your pets, and your garden are always protected.

Yes. Willow Wash is fully licensed and carries general liability insurance for all residential and commercial work throughout California. We can provide a certificate of insurance naming your company as an additional insured, and we can complete W-9 documentation and vendor portal registration for GC and property management onboarding.

Yes. We offer weekly, monthly, and quarterly maintenance contracts for commercial properties — parking lots, building exteriors, dumpster pads, storefronts, and window cleaning. Recurring contracts include consistent scheduling, predictable pricing, and direct account management. Most commercial clients bundle multiple services into a single recurring visit for cost efficiency.

Yes. We offer flexible scheduling including early mornings, evenings, and weekends for both residential and commercial clients. Most commercial work — parking lots, storefronts, building exteriors — is best done outside of business hours, and we plan every job accordingly. Let us know your constraints and we'll build the schedule around them.

Every commercial job includes proper wastewater containment and recovery to comply with California Regional Water Quality Control Board regulations. We block storm drains, use containment berms where necessary, and collect and properly dispose of wash water. No runoff enters storm drains on our jobs — protecting your property from fines and violations.

We serve 36+ cities across the South Bay, East Bay, Peninsula, and Tri-Valley — including San Jose, Santa Clara, Sunnyvale, Fremont, Hayward, Milpitas, Pleasanton, Palo Alto, Redwood City, San Mateo, Walnut Creek, and more. See our full service area below or visit the Areas We Serve page.