HUGE Black Friday deals on Kärcher window vacs and accessories - save up to 45%

The Kärcher window vac is Mumsnetters’ favourite gadget for getting rid of troublesome condensation that forms on window panes this time of year (particularly when paired with the best dehumidifier). Simply run the vac over the glass, and voilà! The water has gone.

Not only is it great for interior windows, but Mumsnetters say the Kärcher window vac also does the business when it comes to car windows, shower cubicles and even hoovering up water from kitchen worktops.

If you have always coveted a Kärcher but were put off by the price, then we have great news for you - Amazon has slashed up to 40% off some models for Black Friday. Here are the best Black Friday deals on Kärcher window vacs.

Seeking more savings? Check out our guides to the best Black Friday John Lewis deals, the best Black Friday air fryer deals, the best Black Friday tumble dryer deals, the best Black Friday tablet deals, the best Black Friday washing machine deals and the best fridge freezer deals.

40% OFF Kärcher WV 5 Plus N Window Vac - was £90, now £55!

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"We have (I think) the VW5 Karcher. It came with a larger and smaller blade and a spray bottle thing to clean the windows. We are renovating and been living in a static caravan in the garden. Its single glazed and in winter- the windows are literally dripping water every morning. I mainly use the karcher for condensation- both in the caravan and inside of the car also." Recommended by Mumanetter MarmiteCoriander

Instead of recharging the unit as you would do with older models, the WV5 comes with a detachable, rechargeable battery, giving you the option to buy more than one and get longer uninterrupted use. It also comes with two different nozzle sizes: the standard 280mm plus a smaller 170mm, to allow you to give those smaller panes the full window vac experience. There's also a three-stage LED battery indicator, meaning you've got plenty of warning before you run out of juice. It comes with a standard suction blade, narrow suction blade, spray bottle, cleaning solution sachet, lithium-ion battery, and charger.

45% OFF Kärcher WV2 Plus N Window Vac - was £80, now £44!

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"A window vac (e.g. Kärcher WV 2 Plus Window Vac is great for getting the windows dry and helping prevent mould." Tried and tested by CrabbyCat

The Kärcher WV 2 Plus comes complete with a spray bottle and a microfibre cloth, so you can keep your newly damp-free windows sparkling clean. Fill the bottle with whatever solution you want (or the handy sachet of Kärcher cleaning fluid also provided), and spritz it all over your window before vac-ing it all off (which is very satisfying!). In the box, you'll also get your charger, spray bottle, and Kärcher's own super duper cleaning solution sachet as standard.

27% OFF Kärcher 16332220 WV 6 Plus N Window Vac - was £110, now £80!

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If you are ready to go all-in with window vacuuming, why not treat yourself to the best of the best? The WV6 Plus features a clever digital display showing the number of minutes of charge left, silicone lip technology, and boasts a larger dirty water tank than other models, which is great if you are plagued with large areas of damp. It comes with a whole host of extra accessories, too – including a fast charger, microfibre wiping cloth and interchangeable nozzles, as well as the spray bottle and sachet of cleaning fluid. All for under £100? Bargain!

23% OFF Kärcher 26331440 Window Vacuum Extension Set, was £45, now £35!

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Can't quite reach that awkward window? Fear not, for the Kärcher Window Vacuum Extension Set is here to save the day (as well as your bank balance).

Suitable for all Kärcher window vacuum cleaners, the extension set consists of two telescopic rods extendable to 1.5m: one with flexible joint for holding the window vacuum cleaner, as well as a rod with wiper with microfibre cloth.

With nearly a third off the RRP this Black Friday, the Kärcher Window Vacuum Extension Set will make a great addition to your Kärcher collection.

33% OFF Kärcher Window Cleaner Concentrate, was £6, now £4!

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Looking to achieve the perfect streak-free shine? The Kärcher Window Cleaner Concentrate works with your window vac to breathe new life into windows, mirror, glass tables and shower screens, dispensing with even the most stubborn stains, grease and dirt. The biodegradable formula ensures the detergent is kind to the environment, while being kind on the nostrils, leaving behind a fresh aroma after every clean.

You can use it manually or with Kärcher Spray Bottle. Just pour 1.5 capfuls of concentrate into the spray bottle, fill up with 220ml of water and off you go - happy cleaning!

When is Black Friday 2025?

Black Friday 2025 officially launches on 24 November, but lots of top brands have announced early sales and savings including John Lewis, Amazon, Oodie, Ninja and Shark. It's well worth keeping an eye out for bargains throughout the whole month as it's likely more retailers will cut prices on popular products before the main event. The MNHQ deal hunters will be beavering away to source savings on products that we know Mumsnetters love and recommend.

About the author

Laura Cooke is a Content Editor at Mumsnet, with a special focus on home care content. She writes buyer's guides, cleaning and laundry articles, and tests products out in her family home to help our readers make informed choices when it comes to parting with their pennies. She is a mum of two and lives in Sussex.