Meet the Experts Behind Northern California’s Cleanest Exteriors
For 22+ years, we’ve helped property owners protect their investments with precision, eco-care, and neighbor-level service.
Built in Walnut Creek
Family-Owned, Regionally Trusted
Mt Diablo Window Cleaning was founded by Gilberto and Monica—a husband-wife team who turned their passion for detail and service into a company that protects Northern California’s most valuable properties. With Monica’s nursing background and Gilberto’s commercial expertise, they built a brand rooted in care, precision, and integrity. From day one, the goal has been clear: deliver technical excellence with a personal touch. Unlike national franchises, we’re part of this community. We don’t believe in shortcuts or flat-fee guesswork—just tailored service that gets results. That's why residents across the East Bay and commercial managers trust our services.
20+
YEARS IN BUSINESS
Certified by Experience
Why We Focus Only on Exteriors
We’re not a general janitorial crew—and that’s on purpose. Mt Diablo Window Cleaning was designed as an “exterior-only” company to ensure maximum technical precision. Our certified technicians operate advanced equipment, including 220-degree hot-water trailers, DI water-fed poles, and aerial lifts. This narrow focus allows us to deliver unmatched results while protecting surfaces, systems, and warranties. Whether it’s bird-proofing a rooftop solar array or cleaning hard-to-reach commercial glass, we don’t just make it look good—we preserve the long-term value. When property preservation matters, a specialist makes all the difference. That’s why we do what we do—and only what we do.
Precision-Driven. People-Focused.
About Our Team, Tools, and Approach
Are your technicians certified for aerial and lift work?
Yes. We maintain aerial platform certifications and full insurance to meet both residential and commercial safety requirements.
How long has your team served the Northern California region?
We’ve been operating for over 22 years of service excellence based in Walnut Creek.
What makes your equipment different from other companies?
We use commercial-grade trailers, hot water pressure washers, and deionized systems—far beyond typical consumer-level tools.
Is Mt Diablo Window Cleaning a franchise?
No. We’re family-owned, locally operated, and proud to serve our East Bay neighbors with personal accountability.
