Our combination of pure water technology, seven plus of local experience, and a genuine SpotFree guarantee sets us apart. Having cleaned tens of thousands of windows across the East Bay — from vintage Claremont Craftsman homes to modern Emeryville lofts — we know exactly how to handle the region’s hard water, coastal film, and seasonal pollen. Every team member is trained in-house, insured, and committed to leaving your property better than we found it.

We filter ordinary tap water through multiple stages (sediment, carbon, reverse osmosis, and deionization) until it reaches 0.0 total dissolved solids. This ultra-pure water becomes “hungry” — it aggressively bonds to dirt, dust, and mineral buildup, lifting them away without detergents. Since there’s no soap residue left behind, your windows stay clean longer and won’t attract new grime as quickly, which is a huge advantage in Oakland’s fog-prone neighborhoods.

Pricing depends on window count, accessibility, and any extras like screen cleaning or hard water stain removal. However, our online quote tool gives you an exact price in under one hour — no waiting for a day or two. Our average residential job ranges modestly, and because we use water-fed poles, we can often reach high windows without the added cost of extensive ladder work. For a custom, instant quote, use the tool right here on this page.

Absolutely. In addition to being the area’s go-to window cleaners, SpotFree offers professional gutter cleaning, solar panel cleaning, whole-house washing, and pressure washing. East Bay trees — think redwoods, oaks, and pines — drop plenty of needles and debris into gutters. Our team can bundle services on the same visit, saving you time and money. You’ll find direct links to our solar panel cleaning and pressure & power washing pages right here on the site.

Yes. Many Oakland and Berkeley homes feature original wood sash windows or leaded glass that can’t be treated with harsh chemicals or high pressure. Our pure water system is entirely chemical-free and uses a gentle rinse that’s safe for the most delicate frames and glazing. We also inspect for cracked putty or loose panes before we begin, and we’ll alert you to any maintenance needs we notice.

Completely. Because we clean with nothing but purified water, there are zero detergents, phosphates, or chemicals running into your garden beds or touching play areas. It’s the same water quality you’d find in a laboratory — just pure H₂O. Many of our clients with organic gardens, bird baths, and curious pets specifically choose SpotFree for this reason.

The East Bay’s unique blend of fog, freeway dust, and pollen means most homes benefit from a thorough cleaning twice a year. Coastal properties closer to the Bay or near redwood groves may want a third visit to combat persistent moisture and tannin drip. We offer flexible recurring schedules (quarterly, biannual, or annual) with a discount for regular maintenance.

Yes, and it’s as simple as it sounds. After we finish, we invite you to inspect every window with us. If you find any spot, streak, or smear, we’ll re-clean it on the spot. No fine print, no hassle. This guarantee applies to every service we offer — window cleaning, gutter cleaning, solar panels, you name it.

For geting instant quote for your San Lorenzo home, Click the “Instant Quote” button on this page. You’ll enter the number and type of windows, choose any add-ons, and recieve your price in one hour. You can then schedule online or give us a call at +1 (510) 214-3794. There’s no obligation, and we never share your information.

Yes. SpotFree Window Cleaning carries full general liability insurance and workers’ compensation. We’re also bonded. Commercial property managers across Oakland, Castro Valley, Lafayatte, and Moraga trust us for storefronts, office parks, and mixed-use buildings. We can provide a certificate of insurance directly to your property management office.