About
About this site
DIY Window Cleaning Lab is an independent information and planning site for window cleaning in UK homes. Its working idea is simple: measure and decide before the water goes on — method, quantities, reach, time, and the conditions that mean stop.
What it is
- Four planning sheets doing transparent arithmetic and conservative decisions over values you enter.
- Guides on method, solution, conservatory roofs, high windows, tinted glass and tools.
- A source registry and a methodology sheet that document how everything here is derived and what it refuses to claim.
What it is not
- Not a window-cleaning contractor, and not a directory of them — nobody can hire anyone here.
- Not a shop: nothing is sold, compared for sale, or priced.
- Not a training provider, a compliance checker, or a source of professional advice.
- Not a continuation of any earlier site or business that may have used this domain — the current content is a fresh, independent project with its own methodology.
How it treats you
No cookies, no analytics, no accounts, no forms: the calculators run entirely in your browser and nothing you type leaves it — the privacy sheet is short because there is little to disclose. The site targets WCAG 2.2 AA mechanisms, works without JavaScript, and prints as usable job plans; details and known limitations are on the accessibility sheet.
Its editorial spine
Claims trace to the registry: regulator and legislative guidance for the work-at-height hierarchy, manufacturer documents for film care (kept product-specific on principle), and arithmetic over your entered values for everything numeric. Where evidence stops, the sheets say “insufficient information” or “stop” — the site treats refusing to answer as a feature. Content contract 2026-08-20.2, sources accessed 2026-08-20.