Mineral spotting
Hard water spot removal
Sprinkler overspray, rain and a previous cleaning all leave mineral behind on glass. Ordinary cleaner will not shift it. We do, without scratching the pane.
Why the spot stays after the water is gone
Every drop of water sitting on your glass carries dissolved calcium and magnesium. The water evaporates, the minerals do not, and what is left dries onto the surface as a hard, chalky film. That is why a squeegee or a bottle of glass cleaner off a shelf glides straight over it and does nothing: dirt sits on top of glass, hard water spotting is bonded to it. Leave it long enough through repeated sprinkler cycles or rain and it stops being a film and starts etching a texture into the surface itself, which is the difference between a spot that lifts in one visit and one that takes patience over more than one.
What actually comes back
Our crews are trained to work spotting off the glass without scratching the pane or marking the frame, sill or siding around it. Large windows, a full run of windows, or a job that runs up multiple storeys are all routine, not a special case, and the same crew that clears the mineral spotting can move straight into your regular window cleaning, your pressure washing or your high dusting while they are already on the ladder. If your glass has been etched for years rather than months, tell us that on the free estimate and we will give you an honest read on how much of it recovers rather than a number picked to sound good on the phone.
Caprock Window Cleaning, same-day service is typically available. Call (806) 790-9944.
One window, two visits apart
Not a rinse. A different job entirely.
This is the same storefront window, the same yellow frame, shot from the same spot. The pane on the left had been carrying spotting across its whole surface for long enough that it read as frosted glass rather than dirty glass, which is the tell that you are looking at mineral buildup and not a window somebody forgot to wash. Drag the slider and watch what happens when the deposit actually lifts rather than gets wiped around: the glass goes back to holding a reflection instead of scattering light.
Where it comes from in the first place
Lubbock lawns run on sprinklers more months of the year than they don't, and a head aimed even slightly wrong throws a fine mist across the lowest few feet of glass on a house, storefront or dealership window every single cycle. Rain does the same thing over a longer stretch, and so does a previous cleaning that used the wrong water. None of it is neglect on your part. It is what water does to glass everywhere it is allowed to sit and dry, repeatedly, for months.
What we do differently
A standard window cleaning pass is built to lift dust, pollen and fingerprints, and it will run right over a mineral deposit without touching it. Hard water removal is a slower, more deliberate pass aimed specifically at that bonded layer, worked evenly across the whole pane so you do not end up with a patchy clear spot in the middle of spotted glass. The result is the same surface finish you would get on a window that was never spotted at all: smooth, clear, no scratches, no ring left behind from the process itself.
Same equipment, same crew, whether the glass is spotted or clean. A water-fed pole reaches storeys a squeegee on a pole cannot.
One visit, more than one thing done
While the ladder is already up
Most of the customers who call about spotting on their windows also have brick, siding or concrete nearby that could use a pressure wash, or a chandelier and some high shelving nobody has dusted in a while. Since the crew and the equipment are already on site, all three fold onto the same free estimate rather than three separate appointments.