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Pure water and telescopic poles: how high windows are cleaned
How can upper-floor windows be cleaned without a ladder and without streaks? A simple explanation of what pure water is and how a telescopic pole works.
Anyone who has ever cleaned upper-floor windows from a ladder knows how uncomfortable and dangerous it is. Modern window cleaning uses a different technique: a long telescopic pole and pure water. That way high windows can be cleaned from the ground with a streak-free result.
What pure water is
Ordinary tap water contains dissolved minerals — mainly calcium and magnesium. They are what leave limescale in the kettle and white spots on glass where drops have dried.
Pure water is water from which minerals have been almost completely removed with filters. This is done with reverse osmosis and ion-exchange filters. The result is water with so few dissolved substances that nothing is left on the glass when it dries.
Why it leaves no streaks
No minerals — dried drops leave no spots.
No detergent needed — pure water dissolves dirt itself, and no detergent residue is left on the glass to hold dust.
The glass dries by itself — no squeegee or drying needed, which matters especially high up.
How a telescopic pole is used
At the end of the telescopic pole there is a soft brush with a thin jet of pure water flowing from its edge. The window cleaner stands on the ground and moves the brush across the glass and frame:
The brush removes dust, pollen and other dirt.
The water rinses the dirt off the glass and frame.
The final rinse leaves only pure water on the glass, which dries without streaks.
The length of the pole is adjustable, so the same technique works for a ground-floor shop window and for higher windows. With telescopic poles and safety equipment we reach the 4th floor.
Advantages
Safety — less use of ladders and working at height.
Your garden stays untouched — no ladder in the flower bed.
Environmentally friendly — no detergents, safe for plants and pets.
Frames get clean too — the brush cleans the frame and glass at the same time.
When this technique does not fit
Pure water and a brush do not remove paint, plaster or silicone residue — that needs scrapers and special products. That is why post-renovation window cleaning is a separate service. The inside of windows is also usually cleaned by hand.
Summary
Pure water and telescopic poles are the most convenient and safest way to clean high windows, conservatories and glass facades. Read more on the high window cleaning page or see house window cleaning.
Need your windows cleaned?
Send a request — we confirm the price and time the same day.
