In Centennial the giveaway is a chalky band across the bottom of whichever windows the sprinklers reach. Centennial sits in far west Boise around Centennial High School, out toward Cloverdale and McMillan, where the homes are mostly 1990s and 2000s two-story production homes on compact lots. Here is how we approach hard water stain removal on this side of Boise, what it costs, and when to book it.
Treasure Valley water carries a heavy dissolved mineral load. When a droplet lands on glass and evaporates, the water leaves and the minerals stay. Layer after layer builds a deposit that no ordinary cleaning touches, and left long enough the minerals bond into the silica surface and etch it. Before that point it is removable. After it, the pane has to be replaced — there is no cleaning that reverses etching, and anyone who says otherwise is selling you something.
Two reasons stack up here. First, irrigation: new-subdivision construction dust and sprinkler systems running hard on Ada County water. Second, the housing — large two-story vinyl double-pane units, often with upper windows over a landscaped bed or roofline, and on 1990s and 2000s two-story production homes on compact lots the glass often sits close to grade where spray reaches it directly. Walk your irrigation zones once while they run and you will see exactly which heads are hitting the house. Adjusting two or three heads is free and prevents the whole problem.
We assess severity first, because the treatment escalates. Light mineral film comes off with an acid-free treatment and a lot of careful work. Heavier deposits need a specific mineral dissolver with controlled dwell time, worked in sections and neutralised. The heaviest cases need mechanical polishing, which is slow and priced accordingly. Every case finishes with a pure deionized water rinse so nothing is left to re-spot.
If the glass is already etched we will say so and not charge you to chase a stain that will not move. We will show you the test patch so you can see it yourself. That honesty costs us a job occasionally, but a customer who was told the truth about one window trusts us on the other thirty. It is also why we push prevention harder than treatment.
Treatment is quoted by severity and pane count — most Centennial homes land between $50 and $150 on top of a window clean. It is included at no charge on every Monthly and Quarterly membership visit, which is the cheapest way to handle it, because on a recurring schedule the deposits never get the chance to build. Call or text (208) 453-6760.
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Hard Water Stain Removal is quoted by severity; included on Monthly membership. We quote your specific property rather than guessing from square footage. Call or text (208) 453-6760 and we will give you an exact number, usually within the hour.
Yes — Centennial is on our regular Boise routes, including Cloverdale Road and the surrounding streets. We are locally owned, based in Meridian, and fully insured in Idaho.
Yes, and it is usually cheaper and simpler that way — one visit, one crew, one appointment. Window cleaning starts at $199 priced by pane count, and most customers bundle two or three services.
Licensed, bonded and fully insured in Idaho, with general liability coverage. Property managers and HOAs can request a certificate of insurance and we will send it over.
It depends on exposure, but new-subdivision construction dust and sprinkler systems running hard on Ada County water is the driver here, so most Centennial properties end up on a recurring schedule rather than calling once and forgetting. We will give you an honest interval for your property rather than the one that bills the most.
If rain spots your windows within seven days of a visit, we re-clean the affected exterior glass free. It is included on every Monthly and Quarterly membership visit.
Free, no-obligation quote. Next-day slots available.
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