Water-fed pole cleaning is now a common way to clean exterior windows in the UK. Instead of carrying a bucket and squeegee to every upper window, the cleaner pumps purified water through a long pole to a brush head and works from the ground where practical.
What makes the water different?
Ordinary tap water contains dissolved minerals. When tap water dries on glass it can leave mineral marks. Pure-water systems reduce those dissolved solids so the rinse water can dry naturally without the same mineral residue.
Why are the windows left wet?
With a properly operated pure-water system, the final rinse is intended to be left on the glass. The water evaporates rather than being squeegeed off. This can look unusual if you are used to traditional cleaning.
What does the brush do?
The brush agitates dirt on the glass and, depending on the service, the frames and sills. The rinse then carries loosened dirt away. A first clean can take longer because old contamination may be sitting in frame edges, vents and seals.
Where is the method useful?
It is particularly useful for upper-storey exterior windows, larger properties and regular rounds where the glass and frames are maintained frequently. It can also reduce the need to place ladders at every window.
What are the limitations?
Not every mark is ordinary dirt. Paint, cement, silicone, adhesive and mineral deposits may need specialist removal. Access over deep extensions or enclosed courtyards can also limit what a pole can reach effectively.
Does it work in light rain?
Many cleaners continue in light rain because the cleaning process does not depend on a dry pane. Strong wind, heavy rain, ice or unsafe ground conditions can still make work impractical.
What should you ask a cleaner?
- Are frames and sills included?
- How do you deal with windows above extensions?
- Is the first clean charged differently?
- What happens if access is blocked?
- How will I know when the clean is complete?
The method is a tool rather than a guarantee of quality. Good results still depend on correct water quality, thorough brushing, an adequate rinse and sensible access planning.