Window cleaning companies in London
247 window cleaning companies have a registered office in London, and 99 of them were formed in 2025 or 2026. In their latest accounts, the typical one held £7,010 in cash and owed £9,798 at year end.
The numbers
| Measure | London | UK |
|---|---|---|
| Registered companies | 247 | 3,009 |
| Formed in 2025 or 2026 | 99 (40%) | 25% |
| Being struck off or in liquidation | 21 (8.5%) | 8.3% |
| Typical cash at year end | £7,01040 accounts | £5,849 |
| Typical amount owed at year end | £9,798106 accounts | £10,508 |
| Typical number of employees | 1108 accounts | 1 |
What this means if you’re starting one
London has fewer of these businesses than most places
Window cleaning companies are 0.02% of companies registered in London, against 0.06% UK-wide (0.4× the national share).
That could be a gap or a sign of weak demand. The register cannot tell which.
Most of these businesses are run by one or two people
The typical window cleaning company in London reports 1 employee; the top quarter has 3 or more (108 filings).
You are mostly up against owner-operators. Your own hours are likely to be your biggest cost, and the easiest one to undercount.
Most of your competition will be other newcomers
40% of the 247 window cleaning companies in London were formed in 2025–26, against 28% of all companies in London.
New rivals are arriving faster than in most trades, so your customers already have fresh options. Being new is not a difference on its own.
Planning a business like this in London?
Answer two questions about your customer and what makes you different, and get a free three-week plan to test the idea before you spend real money. No account or card.
Check my ideaWhat these figures can’t tell you
Companies are counted where their registered office is, which may be an accountant or a home address rather than a shop. Sole traders and partnerships are not on the register, and electronically filed accounts cover roughly 60–75% of accounts filed each year. The figures describe companies that exist; they cannot prove demand for your idea or predict whether it will work. How the figures are built.
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