Most Seattle window problems come down to hard water spots — from sprinklers, salt air, or even just rain runoff over time. Here's the prevention vs. cure breakdown.
Prevention (cheap, easy)
Adjust sprinklers so they never hit glass. Check sprinklers seasonally. Use rain-X-style protective coating on windows facing your sprinkler zones.
Cure for fresh spots (under 30 days)
Light spotting cleans with white vinegar + microfiber. Diluted CLR works for moderate. Both wipe off if you catch them early.
Cure for etched spots (over 30 days)
Once minerals etch the glass surface, household cleaners won't touch them. Professional restoration uses cerium oxide polishing or hydrofluoric-based gels. Cost: $145-325 per window depending on severity.
The math
Restoration at $145-325 vs. window replacement at $500-1,200. Plus the install of a new window often damages surrounding trim or siding. Restoration wins almost always.
Inspect your sprinkler aim once a season. Saves thousands in glass restoration.
Free assessments any time. We tell you straight which spots need restoration vs. just a good cleaning.
Need hard water spot removal in Seattle?
We're Crystal Clear Window Co. — family-owned, fully licensed, and answering the phone live. Most Seattle jobs booked same-day.