Austin Hard Water Stain Removal

Why Austin Homes Get Hard Water Stains

Central Texas tap water is among the hardest in the country, with high levels of calcium, magnesium, and silica from the limestone that the Edwards Aquifer flows through. Every time a sprinkler hits your window, a rainstorm splashes runoff up from the patio, or condensation drips down the outside of a poorly sealed pane, those minerals are left behind as the water evaporates.

At first they look like simple water spots that should wipe right off. But mineral deposits actually bond to the glass surface over time, and once they've baked in for a few months they're chemically fused to the silica in the glass itself. Standard window cleaner won't touch them. Vinegar might soften the surface but rarely restores clarity. Aggressive scraping risks scratching the glass permanently.

Professional removal uses pH-balanced restoration products combined with the right pads and technique. Done properly, even windows that have looked permanently stained for years can be brought back to clear glass.

Where We See the Worst Hard Water Damage

The usual suspects in Austin homes: ground-floor windows hit by misaligned sprinklers (especially side-yard windows nobody pays attention to), shower glass with daily mineral exposure, exterior glass on patio doors near pools, and any window directly under an eave that gets repeated rain runoff from above.

We've also seen severe staining on brand-new construction in Leander, Cedar Park, and Liberty Hill, where nearby builds spray hard water during framing and the overspray bakes onto neighboring glass. The good news is that even severe stains can usually be reversed if they're caught within a year or two.

Once we restore your glass, we'll point out the source — usually a sprinkler head that needs adjusting, a patio that needs a splash guard, or a roof drip line that needs redirection — so you don't end up paying for restoration again next year.

• Inspection and severity assessment of every affected pane
• Application of professional-grade hard water restoration product
• Hand-polishing with non-abrasive restoration pads
• Multiple passes on heavily stained areas
• Final cleaning and streak-free finish
• Recommendations on preventing future buildup (sprinkler tweaks, etc.)

Our Process

Hard Water Stain Removal FAQs

The questions Austin homeowners ask us most about hard water stain removal.