72% of Fresno properties we service have hard water staining on exterior glass. Fresno's notoriously hard water leaves calcium and mineral deposits every time sprinklers hit glass — and if left untreated, they chemically etch the surface permanently. We remove them before they become permanent damage.
Fresno has some of the hardest water in California. Combined with the prevalence of lawn irrigation systems and the city's hot, dry climate, mineral deposits on glass are nearly universal.
Every sprinkler cycle deposits a thin layer of dissolved minerals on glass. The water evaporates; the minerals stay. Over weeks and months, layers accumulate into visible white haze.
72% of Fresno HomesMineral etching begins in as little as 3–6 months on untreated glass. Once etching occurs, the glass surface is permanently microscopically damaged — some deposits cannot be fully removed without professional polishing compounds.
We use professional-grade acidic and chelating compounds specifically formulated for mineral deposit removal — not consumer products that scratch. Treatment time depends on deposit severity and glass type.
After removal, regular cleaning prevents deposits from rebuilding. Our monthly plan ($85/mo) keeps deposits from reaching the etching threshold — far cheaper than repeated heavy treatment.
Prevention Is CheaperHard water treatment is available as a standalone service or included with full-service window cleaning. Contact us for a quote based on your glass area and stain severity.