How Often Should You Clean Your Windows in Colorado?

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Colorado is hard on glass. Between Front Range dust, spring pollen, sprinkler overspray, summer thunderstorms, and months of winter grit, windows here get dirty faster than most homeowners expect. So how often should you actually have them cleaned?

The short answer

For most Denver-metro homes, 2 to 4 professional cleanings per year keeps glass consistently clear. Twice a year (spring and fall) is the practical minimum; quarterly is the sweet spot for homes that want windows that look clean all the time, not just for a few weeks after a visit.

What makes Colorado different

• Dust and wind. The Front Range is semi-arid, and chinook winds carry fine dust that settles on exterior glass year-round.
• Pollen season. Cottonwood and pine pollen in late spring can coat screens and glass in days.
• Hard water. Sprinklers that hit windows leave mineral deposits that etch into glass if they're not removed — this is the number one cause of permanently cloudy panes we see.
• Freeze and thaw. Winter snow splash and road grit build a film on lower panes that hangs around until spring.

A schedule that works

• Twice a year (bi-annual): a solid baseline — one clean after pollen season, one before the holidays.
• Quarterly: the most popular cadence with our members. Glass never gets a chance to build up grime, and hard-water spots are caught before they set.
• Monthly: for storefronts, businesses, and homes where the view is the point.

If sprinklers hit any of your windows, have those panes looked at sooner rather than later — mineral deposits get harder to remove the longer they sit.

Save on every visit

Recurring cleanings are exactly what the Pine membership is built for: bi-annual, quarterly, or monthly plans with a discount on every cleaning, free hard-water removal and DI technology on quarterly and monthly plans, and no contracts to manage. Or just grab a free flat-rate quote and see the numbers for your home.