CrownExteriors — Pure Ionized Water Window Cleaning in San Mateo County
Commercial & Residential · San Mateo County
Spotless Windows.
Pure Dionized Water.
Streak-free results every time. Trusted by homeowners and businesses across San Mateo County.
Our Services
What We Do Best
From homes to high-rises — all powered by pure deionized water. No chemicals, no streaks, done in half the time.
100% Chemical-Free Deionized Water Technology
Every service we offer uses pure deionized water — no soaps, no chemicals, no residue. It's safer for your property, better for the environment, and gets the job done in half the time of traditional methods.
Window Cleaning
Residential & Commercial. Zero Chemicals.
We clean windows on everything from single-family homes to multi-story office buildings, law firms, and tech campuses — all using 100% pure deionized water. No soaps, no chemicals, no residue. Our water-fed pole system reaches high-rise windows safely and dries completely spot-free, in half the time of traditional methods.
- Homes, condos & townhouses
- Office buildings, law firms & tech spaces
- 100% chemical-free deionized water
- Twice as fast as traditional cleaning
- Interior & exterior, screens & tracks included
Solar Panel Cleaning
Maximize Your Energy Output.
Dirty solar panels can lose up to 30% of their efficiency. Our pure deionized water soft-brush method gently removes dust, bird droppings, and grime without any chemicals — protecting your panels and restoring peak performance. Faster, safer, and more effective than standard cleaning.
- Chemical-free pure water method
- Restores up to 30% lost efficiency
- Faster than traditional methods
- Residential & commercial arrays
Holiday & Seasonal Lighting
Professional Installation & Takedown.
Transform your home or business with a stunning, professionally installed holiday light display. We handle everything — design, installation, and takedown — so you can enjoy the season without the hassle. Residential homes, commercial storefronts, and office buildings welcome.
- Residential homes & rooflines
- Commercial storefronts & offices
- Full installation & takedown service
- Custom designs available
Pressure Washing
See the Difference Yourself
Drag the slider to reveal the transformation. Years of grime, oil stains, and buildup — gone in one visit.
Drag the handle left or right to compare
Driveways, Patios & Building Exteriors
Pressure washing is one of the fastest ways to restore your property's curb appeal. We clean driveways, walkways, patios, fences, decks, and commercial building exteriors — using the right pressure for each surface so nothing gets damaged.
Pure Water Rinse
We finish every job with a deionized water rinse — no soap residue, no streaks, no chemical runoff.
Twice as Fast
Our high-efficiency equipment cleans driveways, patios, and walkways in a fraction of the time.
Safe for All Surfaces
Concrete, pavers, brick, tile — we dial in the right pressure so nothing gets damaged.
Homes & Commercial
Residential driveways to commercial parking lots and building exteriors — we handle it all.
500+
Jobs Completed
5.0
Star Rating
100%
Satisfaction
3+
Years Serving
Why Choose Us
The CrownExteriors Difference
Pure Deionized Water
Our water-fed pole system uses 100% deionized water — no chemicals, no soap, no streaks. Just pure water that dries spotless.
Fully Licensed & Insured
We carry full liability insurance and are properly licensed in California, so you can have complete peace of mind.
5-Star Reputation
Our customers consistently rate us 5 stars. We take pride in showing up on time, doing the job right, and leaving no mess behind.
Reliable & On Time
We respect your schedule. You'll always get a confirmed appointment window and a team that shows up when they say they will.
Commercial Grade Equipment
We invest in professional-grade tools and technology to deliver results that exceed what standard cleaning can achieve.
Locally Owned
We're your neighbors. Locally owned and operated in San Mateo County, we care deeply about the community we serve.
500+
Jobs Done
5★
Rated
100%
Satisfaction
About CrownExteriors
San Mateo County's Trusted Exterior Cleaning Experts
Ask about our new Maintenance Plan for year-round shine. Locally owned and operated, we are all about honest work, reliable service, and helping neighbors keep their homes looking great. Whether you're prepping for guests or just tired of looking through smudges, we're here to make window cleaning simple — and keep it that way.
We use a professional deionized water-fed pole system that leaves zero streaks, zero chemicals, and zero mess. Every job is backed by our satisfaction guarantee.
Customer Reviews
What Our Customers Say
"Absolutely incredible service. My windows have never looked this clean — you can barely tell the glass is there. The team was professional, on time, and left zero mess. Will definitely be booking again."
Michael T.
Belmont, CA · August 2026
"I had my solar panels cleaned and noticed a difference in my energy output almost immediately. The pure water system they use is impressive — no chemicals, no residue. Highly recommend."
Sarah L.
San Mateo, CA · July 2026
"Used CrownExteriors for our commercial building and they knocked it out of the park. Every window spotless, done in half the time I expected. Pricing was fair and transparent. 5 stars."
David R.
Foster City, CA · July 2026
Get In Touch
Request a Free Quote
Fill out the form and we'll get back to you within 24 hours with a free, no-obligation estimate.
Phone
(415) 996-0949Service Area
Belmont, CA · San Mateo County