How often should windows be cleaned? For most homes in and around Cambridge, every 6 weeks keeps the glass consistently clear, and every 12 weeks is enough for houses in quieter, sheltered spots. The right gap depends far more on what is around your house than on how big it is.
How often should windows be cleaned: every 6 or 12 weeks?
We run rounds on both cycles, and most customers settle into one within a couple of visits. A 6-week round suits homes on busy roads, houses near trees, families with children and dogs who leave marks on patio doors, and anyone who simply notices dirty glass. A 12-week round works well for newer estates set back from traffic, with few trees and not much direct sun on the main windows.
The longer gap costs a little more per visit, because there is more build-up to clear each time. On a 3-bed semi, for example, that is £21 every 6 weeks or £27 every 12 weeks.
What makes windows get dirty faster?
When customers ask how often their windows need cleaning, these are the things we look at first:
- Trees. Sap, pollen in spring and bird droppings all land on the glass. Lime and sycamore trees are the worst for sticky sap.
- Main roads. Traffic leaves a grey, oily film. Homes along routes like Histon Road or near the A428 tend to need the shorter round.
- Building work. New-build phases in Cambourne and Northstowe throw up a lot of dust. If there is a site next door, a 6-week round stops it settling into a crust.
- South-facing glass. Sun bakes marks on and shows up every smear, especially in the low autumn and winter light.
What happens on the day of a pure-water clean?
We use a water-fed pole system. Tap water is filtered to strip out the minerals, then pumped up the pole to a soft brush. We scrub the glass, frames and sills, then rinse everything down. Because there is nothing left in the water to dry as spots, the glass dries clear with no wiping. Everything is done from the ground, with no ladders, and the poles reach up to the 4th floor.
A few things make the visit go smoothly: leave side gates unlocked, move pots or furniture away from under the windows, and keep dogs inside. If your windows were previously cleaned with soapy water, the first pure-water clean can leave a few faint marks as old residue washes out of the frames. That normally clears by the second visit.
Is it worth cleaning windows in autumn and winter?
Yes, and in October this is when people start to notice it. The sun sits lower, so it shines straight through dirty glass. Falling leaves stick to frames, and damp days mean dust clings instead of blowing off. Rain does not clean windows either: it carries dust down the glass and leaves it behind as it dries.
Keeping your regular round going through winter means the glass never gets badly neglected, so spring cleans are quicker and cheaper. Pure water also lets us carry on in light rain rather than cancelling.
Frequently asked questions
Can windows be cleaned in the rain?
Yes, in light rain. Pure water leaves no residue, so a few drops landing on freshly cleaned glass dry off without marking it. We only hold off in heavy downpours.
How often should windows be cleaned near a main road?
We usually recommend every 6 weeks. Traffic leaves a grey, greasy film that builds up quickly and is much harder to shift if it is left for three months.
How much does window cleaning cost in Cambridge?
Our prices start from £19 per visit. A typical 3-bed semi is £21 every 6 weeks or £27 every 12 weeks, and a 4-bed detached is £27 or £36.
How CamClean can help
We run window cleaning in Cambridge and the surrounding villages on 6 and 12-week rounds, including regular rounds for window cleaning in Cambourne and Bar Hill. Call us on 01954 783308 or ask for a window cleaning quote and we will tell you which round your street is on.



