How often should you have your windows cleaned?
Clean windows make a surprising difference to how a home looks and how much light gets in — but dirt builds up so gradually that most people don't notice until it's bad. So what's the right frequency?
For most homes, a clean every four to eight weeks keeps glass consistently clear. The exact interval depends on where you live and what's around you.
The general guidance
A four-weekly clean is the sweet spot for most households — frequent enough that the glass never really gets the chance to look dirty, and affordable as a regular service.
Stretch to every eight weeks if your windows are sheltered and you're happy with a slightly less pristine finish between visits.
What makes windows dirty faster
Location matters a lot. Homes on busy roads pick up traffic film quickly. Properties near trees deal with sap, pollen and bird mess. Coastal and exposed homes get salt and wind-blown grime.
Across Lanarkshire, our damp climate and frequent rain are the biggest factors — rain carries dust and dirt down the glass and dries into spots, which is why windows can look worse after a shower, not better.
Why regular beats occasional
A one-off deep clean looks great for a week, but dirt comes back. Regular cleaning keeps a baseline of clear glass and is actually easier each time, because grime never gets the chance to bake on.
It's the same logic as the bins — little and often beats rare and drastic.
What a professional clean covers
A good window clean isn't just the glass. Frames, sills and doors should be wiped down too, since dirty frames make clean glass look worse.
We use a reach-and-wash purified water system, which leaves glass to dry spot-free and means upstairs windows are cleaned safely from the ground. Our regular service runs every four weeks across Hamilton and the surrounding towns.
Let Blitz Bin Cleaning take care of it
Regular window cleaning across Hamilton and the wider Lanarkshire area, with no contract and easy online booking.
Book a cleanFrequently asked
Is it worth cleaning windows in winter?+
Yes. Winter brings more rain, road spray and grime, so windows actually get dirtier. Purified-water cleaning works fine in cold weather and keeps glass clear through the darkest months when you want the most light.
How long does a window clean last?+
With regular four-weekly visits, glass stays consistently clear. After a one-off clean you'll typically notice dirt returning within a few weeks, depending on weather and location.
Keep reading
How to remove hard-water spots and limescale from glass
Those cloudy white spots that won't wipe off? Here's what causes them and how to get glass properly clear again.
Pure water window cleaning explained (and why we use it)
Reach-and-wash, purified water, no ladders — here's what modern window cleaning actually involves and why it leaves a better finish.