Kärcher - Window Vac WV 6 Plus N

Condensation on bedroom windows every winter morning, streaky glass after every shower, a conservatory that looks perpetually grimy — the Kärcher WV 6 Plus N is engineered specifically to solve these problems without the usual faff of squeegees, microfibre cloths, and re-wiping. Unlike basic rubber squeegees, it vacuums the dirty water directly into a removable tank, leaving surfaces streak-free in a single pass. The lithium-ion battery is a meaningful upgrade over older WV models, giving you a longer run time that's actually enough to tackle a full conservatory without stopping to recharge mid-job.

Who Is This For?

This is genuinely useful for anyone with a conservatory, large sash windows, or a bathroom that builds up condensation — people who've accepted that window cleaning is either a chore they skip or one they do badly. It also earns its keep for anyone dealing with chronic damp condensation, where daily use on windows and cold walls can meaningfully reduce moisture. If you have only two or three standard windows in a flat and a decent squeegee already, the cost is harder to justify — a £12 tool will do the job almost as well for that use case.

What Buyers Say

Owners of the WV 6 consistently praise how much faster it is compared to previous WV models, and the suction power draws particular approval for handling heavy condensation in a single swipe. The most common gripe is the capacity of the dirty-water tank — it fills quickly when tackling large surfaces, requiring frequent emptying mid-session, which breaks the rhythm considerably. A handful of users also flag that the spray bottle included is less robust than the vacuum unit itself.

The Deal

At £74.99, down from £119.99, you're saving £45 — a 38% reduction. However, this product is newly tracked on our site, so we have no historical price data to confirm whether £119.99 is a genuine long-term RRP or a softened reference price. It's worth cross-referencing against other retailers before committing. For those comparing cleaning tools more broadly, our best home cleaning deals guide is worth a look. Promising, but track it a little longer before pulling the trigger.