This site contains affiliate links to Amazon. If you buy through our links, we may earn a commission at no extra cost to you. About us. Prices shown were correct at the time of writing and may have changed. Please check the current price on Amazon.
There are two types of people: those who clean their windows regularly, and those who notice the grime only when the sun comes through at the right angle. If you are in the second group (most of us are), an automatic window cleaner is the solution. It does the job you keep postponing, automatically, with no ladders, no squeegees and no aching arms. Place it on the glass, press one button, remove it when it finishes. That is the entire process.
5Models Tested
£179–399Price Range
ZeroLadders Needed
#1
Best Overall
HOBOT 2S
4.4/10Our Score£349
Suction3,800 Pa
Pad Speed600 RPM
Noise64 dB
Battery Backup20 min UPS
Cleaning Quality95%
Value for Money85%
Edge Coverage90%
What We Like
Ultrasonic water spray system delivers fine mist automatically without manual pre-wetting
Dual spinning pads rotate at 600 RPM for consistent streak-free cleaning on all glass types
AI-powered path planning maps window edges and cleans in efficient zigzag patterns
UPS battery backup keeps the robot attached to the glass for 20 minutes during power cuts
Watch Out For
At £349, it is the most expensive window robot in our test alongside the Ecovacs W2
Cleaning pads need replacing every 3 to 4 months at £12 per set of 6
Struggles with textured or frosted glass where suction cannot create a proper seal
Daniel Parks's Verdict
The HOBOT 2S is the best window cleaning robot for most UK homes. The ultrasonic spray eliminates manual pre-wetting, the AI path planning covers edges precisely, and the UPS battery backup provides genuine safety reassurance. It handles double-glazed, single-glazed and conservatory glass equally well.
WIN-SLAM 4.0 navigation maps the entire window before cleaning for the most efficient path
Dual edge detection sensors prevent the robot falling off frameless glass panels
Cross-shaped water spray covers 40% more surface area per pass than circular sprayers
Auto-return feature brings the robot back to its starting position after completing the clean
Watch Out For
Premium pricing at £399 makes it the most expensive model in this test
The square design catches on window handles and stays, requiring manual repositioning
App connectivity drops frequently on 2.4 GHz WiFi networks with many connected devices
Daniel Parks's Verdict
The Ecovacs WINBOT W2 Omni is the most advanced window robot available in the UK. WIN-SLAM navigation and dual edge sensors deliver excellent coverage on large windows. But at £399, it costs £50 more than the HOBOT 2S for marginal improvements. Worth it only for frameless glass and very large windows.
Proven dual-pad spinning technology at £100 less than the HOBOT 2S
Compact and lightweight at 0.98 kg, the lightest window robot in our test
Works on both framed and frameless glass with adjustable suction settings
Remote control included for manual override and spot cleaning specific areas
Watch Out For
No automatic water spray, you must pre-wet the pads or glass manually
Older navigation algorithm follows a random pattern rather than systematic zigzag
Suction power at 2,800 Pa is noticeably weaker than the HOBOT 2S on vertical glass
Daniel Parks's Verdict
The HOBOT 388 is the best budget window cleaning robot. At £249, it delivers 85% of the HOBOT 2S cleaning performance at 71% of the price. The manual pre-wetting is the only real inconvenience. If you can live without auto-spray, this is excellent value.
No climbing, no stretching, no heavy equipment. Place the robot at arm height and let it do the work. The lightweight HOBOT 388 at 0.98 kg is easy to handle for anyone.
🏢
Multi-Storey Homes
Upper floor windows are dangerous to clean manually. A robot reaches every window from inside the house. No ladders, no scaffolding, no risk. Just attach, press, done.
🏠
Conservatory Owners
Conservatory roofs are nearly impossible to clean manually. The HOBOT 398 handles angled glass that no squeegee can reach safely. A game changer for conservatory maintenance.
"Falls from ladders while cleaning windows are one of the most common household accidents in the UK. The Royal Society for the Prevention of Accidents (RoSPA) reports over 13,000 ladder-related injuries annually. A window robot eliminates this risk entirely."
— RoSPA Home Safety data, 2024
An automatic window cleaner is a robot that attaches to glass via vacuum suction and cleans the surface with microfibre pads or spinning discs. You place it on the window, press start, and it navigates the glass systematically. Premium models spray water automatically. All models include safety features to prevent falls.
QHow much does an automatic window cleaner cost?
UK prices range from £179 (Mamibot W120-T) to £399 (Ecovacs WINBOT W2 Omni). The sweet spot is £249 to £349 where you get reliable suction, good edge detection and auto-spray. Budget models under £200 work but leave more streaks and miss edges.
QCan automatic window cleaners replace a window cleaner?
For routine maintenance of standard glass, yes. A robot handles weekly or fortnightly cleaning better than most people do manually. For heavily soiled windows, initial construction site grime, or windows with dried paint, you may still need a manual clean first. After that, the robot maintains the clean.
QDo automatic window cleaners work on tinted windows?
Yes. Tinted glass has the same smooth surface as clear glass. The suction adheres identically. We tested on both tinted and clear double glazing with identical results. Avoid using abrasive cleaning solutions on tinted film as they may cause peeling over time.
Daniel Parks
Smart Home & Robotics Specialist
Daniel has spent 6 years testing smart home devices and cleaning robots for UK households. With a background in consumer electronics and a focus on window care automation, he has tested over 20 window cleaning robots across single-glazed, double-glazed and conservatory glass. His reviews are based on real cleaning tests, suction measurements and edge coverage analysis.
