Why pure (osmosis) water leaves no streaks on your windows
- Streaks come from minerals and detergent residue
- Pure water has those minerals removed — it dries clean
- Reaches high windows safely, no chemicals
What actually causes streaks?
Streaks are residue. Ordinary tap water contains dissolved minerals (limescale); household cleaners leave a thin film. When the water dries, those minerals and that film stay on the glass as visible marks.
What is pure (osmosis) water?
Pure water is tap water passed through filters and reverse osmosis to remove almost all dissolved minerals. With nothing left to leave behind, it dries completely clean — no streaks, no film, no detergent needed.
Why professionals use it
- Streak-free finish on glass, frames and sills
- Carried up water-fed poles to reach high or hard-to-access windows from the ground — safer, no ladders against the façade
- No chemicals, better for plants and surfaces
- Ideal for verandas, conservatory roofs and solar panels too
The takeaway
The secret to streak-free glass is not more product — it's purer water. For perfect results on large or high windows, a professional with pure-water equipment is the surest route. See more streak-free tips.
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Frequently asked questions
Is pure-water cleaning safe for plants and frames?
Yes — it uses no chemicals, so it's gentle on plants, frames, paint and surrounding surfaces.
Can pure water reach upper-floor windows?
Yes — water-fed poles let us clean high windows safely from the ground, no ladders against the façade.
Get a free quote — or simply call us
Call +32 483 81 70 93 or request a free, no-obligation quote — we reply within 24–48 h, in FR, NL or EN.