Bonded mineral spotting
Hard-water stain removal on 30A.
White spots that stay after a cleaning are minerals bonded to the glass. Removing them is slow hand work, priced once we've seen them.
Hard-water stains are the white, cloudy spots that stay put after a normal cleaning. They come from water carrying dissolved minerals: sprinkler overspray, a hose, an outdoor shower beside the house, or runoff dripping off a roof edge. When that water dries the minerals stay behind, and after enough wet-dry cycles in the sun they bond to the glass.
On 30A the pattern is easy to read. The worst spotting is usually on one wall or a row of low panes near an irrigation head, or on the glass next to an outdoor rinse station. Salt spray alone mostly leaves a film that rinses off. It's mineral water drying on the same spot over and over that leaves stains a regular cleaning can't touch.
Removing them is slow work done by hand on the affected panes, and how long it takes depends on how heavy the spotting is. That's why it's priced after we've seen the glass. Stains that have sat for years can etch the glass itself. Etching is damage to the surface and can't be cleaned off, and if we see it we'll tell you before starting.
Afterward, regular exterior window cleaning and moving the sprinkler head are what keep new spots from forming.
What’s included
A straight assessment
We look at the spotting and tell you what's realistic before any work starts.
Removal by hand
Bonded spots worked off pane by pane, at a pace that doesn't risk the glass.
A finished clean
Treated windows are cleaned afterward so they match the rest of the house.
The source pointed out
If a sprinkler head or outdoor shower is causing it, we'll show you so the spots don't come right back.
How it works
- 01
Look at the glass
How heavy the spotting is, whether there's etching, and what's causing it.
- 02
Price it
You get a price for the affected panes before we start.
- 03
Remove the spots
Worked off gradually, checking progress as we go instead of forcing it.
- 04
Finish the glass
Cleaned and detailed, with advice on keeping new spots from forming.
Related services
Common questions
Can all hard-water stains be removed?
Can I remove them myself?
Why isn't this on the quote form with a price?
Why do my windows keep getting spotted?
Ready for clear glass, kept that way?
Answer a few quick questions and see an estimate for your home. We confirm the final price with you before the first visit.