Hard water stains aren’t just ugly — they can etch and permanently damage your window glass. In Minnesota, we see it all the time from sprinkler spray, lake water, and mineral-heavy well systems. Here’s how to treat them right — and when to call in the pros.
What Causes Hard Water Stains?
These stains are the result of minerals like calcium and magnesium being left behind when water evaporates. Over time, they become cloudy, chalky spots that regular cleaning won’t touch.
External Resource: USGS explains hard water by region
DIY Methods to Try First
1. White Vinegar Soak
- Mix vinegar + water (50/50)
- Soak paper towels in solution and lay them on the glass
- Let sit 5–10 minutes
- Scrub with non-scratch pad
✅ Good for light stains, but ineffective on long-standing build-up
2. Store-Bought Cleaners
- Look for products like CLR, Bio-Clean, or Sprayway’s Glass Cleaner
- Use gloves and test on a small area
External Link: Bio-Clean Hard Water Stain Remover
Why Professional Treatment Works Better
At Lakes Area Window Cleaning, we use:
- Acid-based restorers (safe when used properly)
- Steel wool #0000 for sensitive glass
- Pure water-fed pole systems that prevent re-staining
Prevention Tips
- Adjust sprinklers away from windows
- Add gutters or splash guards to minimize splashback
- Schedule professional cleaning every 4–6 months near lakes or wells
Hard water stains are stubborn — but you don’t have to live with them. We’ve removed thousands from Minnesota homes, and we’d be happy to do the same for yours.
📲 Schedule your free quote today at (651) 239-6323
🌐 lakesareawindows.com