Most busy high-street shops need their windows cleaned weekly or fortnightly; quieter or set-back units can usually go monthly. Footfall, traffic, weather and what you sell matter more than any rule of thumb.
What makes shop glass dirty
Three things do most of the damage: hands, traffic and weather. Hands leave smears on doors and at child height on display glass. Traffic throws up a grey film, worst on busy roads and bus routes. Rain dries into spots, and near the coast salt adds its own haze.
A simple way to decide
Stand across the road at mid-morning, when the sun is on your window. If you can see a film or smears from there, so can your customers. Note how many days after a clean that happens. That gap is roughly your cleaning frequency.
As a guide: food shops, cafés and anything near a bus stop usually need weekly cleans. Clothing, salons, estate agents and offices with a shopfront often suit fortnightly. Units on quiet parades or set back from the road can manage monthly.
Inside matters too
The inside of display glass collects dust and condensation marks, especially in winter. Every second or third outside clean is a good rhythm for inside glass, done by hand around your displays.
Keep it on a schedule
The shops that always look good are the ones on a fixed day. It is easier to plan stock and displays around a known clean, and it stops the glass slowly getting worse between “we must get the windows done” moments.
Does the type of shop change the answer?
Yes. Food businesses, cafés and takeaways get grease and condensation on the inside as well as road film on the outside, so they almost always need weekly cleans. Opticians, jewellers and estate agents rely on people looking through the glass at what is displayed, so streaks matter more there than on a shop with posters in the window.
Shops with large awnings or deep recessed doorways stay cleaner on the lower glass, because rain and traffic spray do not reach it. Units on a corner or facing the prevailing wind get dirty faster. These details are why we look at the frontage before suggesting a frequency.
What about shopping parades and centres?
Where several shops share a parade, it is common for some to be cleaned weekly and others fortnightly on the same round. Each shop still gets its own invoice. On some parades the landlord arranges the upper windows and the tenants arrange the shopfronts, so it is worth checking your lease before you book.
Can you clean in the rain?
Light rain does not stop pure water cleaning, because rainwater on clean glass dries far cleaner than rain on dirty glass. Heavy storms, frost and strong wind are the main reasons a clean is moved, and it is rebooked as soon as possible.
Quick questions
Is weekly window cleaning overkill for a small shop?
Not if you sell food, have heavy footfall or sit on a busy road. If your glass still looks clean after a fortnight, fortnightly is enough.
What time of day is best?
Before you open, so the glass is dry and there is no kit on the pavement when customers arrive.
