
De-ionised water has the minerals stripped out of it, which is what causes streaking in the first place. Fed through carbon-fibre poles, it cleans the glass and dries spot-free on its own.
The marks left on glass after a wash are not a sign of a careless job. They are the dissolved solids that were in the water, left behind on the surface when the water evaporated. Tap water is full of them, which is why the traditional answer involves detergent, a squeegee and the skill to remove every drop before it dries.
Take the minerals out and the problem disappears at the source. De-ionised water dries on glass and leaves nothing, because there is nothing in it to leave. No detergent film either — which matters more than it sounds, since soap residue is what makes glass attract dust again within a week.
It also means the glass can be cleaned from the ground. Water-fed carbon-fibre poles reach up to three storeys, so there is no ladder against your gutter, no one on your roof, and no footprints through the garden bed under the window.
“No. We use a de-ionised pure water system, which is streak-free.”

Because there is no squeegee involved, the frames get cleaned as thoroughly as the glass does. On a conventional wash, frames and sills are where the dirty water ends up — you get clean glass sitting in a filthy surround, and the first rain runs the dirt straight back down the pane.
The pure water system washes glass, frames, sills and screens together and lets the whole assembly dry on its own. The result holds far longer, because nothing has been left behind for the next lot of dust to stick to.
Windows, sliding doors, louvres and fixed panes on the outside face.
Cleaned with the glass, which is the part most washes skip.
Washed down in place, or removed first where that is practical.
The glass that shows every mark, cleaned the same way.
Commonly booked together — walls first, glass after, so nothing runs back down it.
See the pageWe work on the outside of buildings. Inside is someone else’s scope.
Where minerals have physically etched the glass — common on shower screens and sprinkler-hit windows — cleaning won’t reverse it.
Overspray and construction residue need a different approach. Raise it and we’ll tell you honestly whether it’s ours.
Cracked panes, failed seals and fogged double glazing get photographed, not fixed.
The pole reaches three. The insurance stops there too.
Pointless, and we won’t bill you for it. Weather-affected days get rescheduled.
Short list, and mostly about knowing what a wash can and cannot fix.
Chips, cracks, scratches and failed seals photographed before anything is touched.
Mineral etching looks like a stubborn stain and isn’t one. Knowing which you have saves you paying twice.
Whether screens can be safely removed, or are better washed in place.
Beds, furniture and paving below the run get considered before water starts coming down.
Pole work needs somewhere stable to stand. Soft beds and slopes change the approach.
If a house wash or roof clean is happening, glass goes last. Always.
Usually the quietest job we do, and frequently added to another one.
A rough window count and whether it is single or double storey is enough to start.
Confirmed from imagery and your photos, or in person if it is being quoted with other work.
Naming what is included — glass, frames, sills, screens — so there is no ambiguity.
Existing damage and any etching identified and flagged to you first.
Pure water through the poles, glass and frames together, left to air dry spot-free.
Billed once you have confirmed you are happy with it.
Still not covered? Ring Blake on 0495 090 010. Enquiries are answered the same day.
No. We use a de-ionised pure water system, which is streak-free.
Because pure water is meant to dry on it. There are no dissolved minerals in the water to leave a mark, so it evaporates and leaves nothing behind. Wiping it would actually be a step backwards.
No. We are an exterior cleaning company, so everything we do stops at the outside face of the building.
Yes, from the ground. Carbon-fibre water-fed poles reach up to three storeys, which is where we stop for liability reasons regardless of what the pole could physically do.
Sometimes what looks like a stain is mineral etching, where hard water has physically damaged the glass surface — usually from years of sprinkler overspray. Cleaning won’t reverse that. We’ll tell you which one you have rather than charge you to find out.
Tap what you’ve got and the estimate builds as you go. Blake measures the real thing before it becomes a fixed price, and every enquiry is answered the same day.