How Often Should You Have Your Windows Cleaned?
There's no universal answer — the right cleaning frequency depends on where you live, how exposed your windows are, and what kind of building you own. Here's what professional window washers recommend.
Recommended Frequency by Property Type
Standard suburban homes — Twice a year: once in spring, once in fall. This handles pollen, summer dust, and pre-winter cleanup before storm-window season.
Homes near the coast or busy roads — Every 3 months. Salt spray and road grime etch glass and degrade frames if left untreated.
Wooded or pollen-heavy areas — Quarterly, with an extra spring deep-clean to deal with tree-sap and pollen film.
Storefronts and restaurants — Weekly or bi-weekly. Foot-traffic prints, splashes, and curbside dust make commercial glass look tired fast.
Office buildings — Monthly to quarterly for interior; quarterly to semi-annually for exterior depending on building height and local climate.
High-rise residential — Twice a year is standard; HOAs and luxury buildings often book quarterly.
Signs It's Time for a Cleaning
Don't wait if you notice:
- Visible film, streaks, or water spots after rain
- Reduced natural light coming through
- Pollen or insect debris on sills and tracks
- Hard-water stains forming around sprinkler-hit windows
- Storm windows or screens collecting visible grime
What Happens If You Wait Too Long?
Skipping cleanings allows mineral deposits, acidic pollen, and hard-water stains to bond with the glass. Once etched, those stains require chemical restoration ($25–$75 per window) — far more than a routine cleaning. Wood and metal frames also degrade faster when dirt and moisture sit on them for months.
Maintenance Between Visits
Between professional cleanings, you can extend the look of your glass by:
- Rinsing exterior glass with a hose after pollen storms
- Wiping interior glass with a microfiber cloth and a 50/50 vinegar-water mix
- Vacuuming tracks every few weeks to prevent buildup
- Trimming back shrubs and trees that touch the windows