Quick answer: You can clean high windows without a ladder using a telescopic water-fed pole (best for outside-only), a magnetic cleaner (thin glass only), a hose-and-squeegee kit, or a robot window cleaner — which cleans both sides of reachable glass automatically and is the only option that doesn't need you to scrub at all. Below, all 7 methods ranked by safety, cost and results.
You know the feeling. You're at the sink, you glance up, and there they are — the upstairs windows, wearing three seasons of rain spots and bird droppings like a badge of neglect.
And every time, the same mental negotiation: drag the ladder out of the garage… wobble on the third rung… hold a bucket with one hand…
No thanks.
You're not lazy. You're sensible. According to the UK's Health and Safety Executive, falls from height are consistently the single biggest cause of fatal workplace injury in Britain — and those are trained professionals with proper equipment. A homeowner on a borrowed ladder over a patio? Worse odds.
So let's rank every realistic way to get those windows clean with both feet on the ground.
1. Robot window cleaner — best overall for regular upkeep
A window cleaning robot attaches to the glass by suction, maps the pane, and cleans it in overlapping passes while you stand there holding a coffee. Place it on the inside of an upstairs window, press start, done. For outside surfaces you can reach to place it (patio doors, ground-floor exteriors, balcony glass), same story.
The CleanBot R1 grips with 6,500Pa of suction — roughly the force of a firm handhold pressing the unit against the glass at all times — and runs an 8-layer safety system with a secured tether, so even a power cut doesn't send it falling. It sprays a fine water mist ahead of itself and follows an N- or Z-shaped path so it doesn't miss corners.
- Safety: Excellent — you never leave the ground
- Effort: Near zero
- Typical cost: £150–£300 one-off
- Limit: You need to reach the glass to place the robot, so fully inaccessible exterior panes still need method 2
2. Telescopic water-fed pole — best for unreachable exteriors
The professional's choice. A carbon or aluminium pole extends 15–30 feet with a brush head that feeds purified (deionised) water. Because the water is mineral-free, it dries without spots — no squeegee needed.
- Safety: Very good
- Effort: High — it's a workout, and poles get heavy and unwieldy past 20 feet
- Typical cost: £60–£400 depending on the system
- Limit: Outside only, and you'll still do the inside by hand
3. Magnetic window cleaner — okay for thin apartment glass
Two magnetic halves sandwich the pane; you move the inside half and the outside follows. Popular with flat-dwellers — we've compared them to robots in detail here.
- Safety: Good
- Effort: Moderate, and fiddly at corners
- Limit: Struggles on double or triple glazing — the magnets lose grip on thick modern units, which rules out most UK homes built after the 90s
4. Hose + extendable squeegee
A garden hose with a spray attachment to rinse, then a squeegee on an extension pole. Cheap and cheerful.
- Limit: Tap water leaves mineral spots as it dries, so results are "better than before" rather than "clean"
5. Spray-and-rinse cleaning solutions
Hose-end products you spray on, rinse off, and let air-dry. Fast for light dirt.
- Limit: Won't shift baked-on grime or bird droppings, and results vary with water hardness
6. The broom-and-microfibre hack
A microfibre cloth secured over a soft broom head, plus a spray bottle. Honestly? For one awkward pane, it works.
- Limit: Streaks, aching shoulders, and it caps out around 10 feet
7. Hire a professional — fine, but it never ends
£40–£70 per exterior visit for a typical UK semi, forever. Over five years that's £1,000–£1,800 for something a one-off tool purchase handles. We've done the full maths in our window cleaning cost breakdown.
Which method should you actually pick?
| Your situation | Best method |
|---|---|
| Two-storey home, want inside + reachable glass done regularly | Robot window cleaner |
| High exterior panes you can't reach at all | Water-fed pole (or a pro, twice a year) |
| Rented flat, thin single glazing | Magnetic cleaner |
| One-off light refresh | Hose + squeegee |
Most homeowners land on a combination: a robot for the regular work — inside panes, patio doors, balcony and conservatory glass — and a pole or an occasional professional visit for the genuinely unreachable outside faces. That takes 90% of the job (and 100% of the ladder risk) off your plate.
FAQ
What is the safest way to clean high windows?
Any method that keeps your feet on the ground: a robot window cleaner for glass you can reach to place it on, or a telescopic water-fed pole for exterior panes you can't. Ladders are the single riskiest option for untrained homeowners.
Can a robot window cleaner do upstairs windows?
Yes — from the inside, on any pane you can open or reach. It grips the glass with strong suction and a safety tether, cleans automatically, and you simply move it to the next pane.
How do professionals clean high windows without ladders?
Most now use water-fed pole systems with purified water, cleaning from the ground up to 30+ feet. Purified water dries spot-free without squeegeeing.
Do magnetic window cleaners work on double glazing?
Usually poorly. Standard magnetic cleaners are rated for specific glass thicknesses, and modern double or triple glazing is often too thick for reliable grip.
Ready to retire the ladder? See the CleanBot R1 robot window cleaner — 6,500Pa grip, 8-layer safety, 24-month warranty, free UK delivery over £75.