Window cleaning is usually priced per visit rather than a flat monthly fee, but most people asking how much a window cleaner costs per month are really trying to budget for a regular round, so it's worth breaking down what that works out to across common visit frequencies.
Here's a realistic look at per-visit and effective monthly pricing, how 4-weekly and 8-weekly plans compare, and what typical house sizes pay.
Typical window cleaning prices
For a standard semi-detached or terraced house, a window clean (using pure water systems, which is now the standard professional method) typically costs £15-£25 per visit. Larger detached houses or those with a conservatory or extension of extra glazing often run £25-£40 per visit. Flats and small terraces can be cheaper, sometimes £10-£18.
On a 4-weekly (monthly) cycle, that works out to roughly £15-£40 a month depending on house size. On an 8-weekly cycle, the per-visit price is often similar or slightly higher (since dirt has more time to build up), but the effective monthly cost roughly halves, working out closer to £8-£20 a month.
4-weekly versus 8-weekly plans
A 4-weekly round keeps windows consistently bright and is popular with people who like a predictable, always-clean look, especially those with front-facing glazing on a busy street. An 8-weekly round costs less overall per year but means windows will look noticeably dirtier by the end of each cycle, particularly after wet or pollen-heavy weeks.
Neither is objectively 'right'; it comes down to budget and how much you notice window griminess. Some window cleaners also offer a 12-weekly or seasonal option, though gaps that long mean more hardened dirt and a slightly longer clean (and sometimes cost) each visit.
What affects the price beyond house size
Ground floor only versus full house (including upper floor and hard-to-reach windows) makes a real difference, since pure water pole systems can reach most upper windows without ladders, but very tall or complex properties may need extra time. Conservatories, bay windows, and porches with extra glass panels also add to the price.
Access matters too: a house with a locked side gate that needs opening each visit, or windows overlooking a neighbour's garden requiring extra care, can be a small factor in how a round is priced.
Choosing a frequency that suits you
There's no single right answer for how often to have windows cleaned; it comes down to how much grime bothers you, how exposed your windows are to road spray or garden mess, and what fits your monthly budget. Many customers start on a 4-weekly plan and switch to 8-weekly once they've settled on what they're happy with.
It's also worth asking whether frames, sills and doors are included as standard, since some rounds cover glass only while others wipe down the full window surround, which affects both the look of the finished job and, sometimes, the price.
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