Window cleaning
Pure water, invisible glass
The same de-ionized water system that leaves solar panels spotless, applied to your windows. No hard-water streaks, no chemicals, no residue.
The short answerNorthwest Solar Clean provides window cleaning across the greater Portland, Oregon area using pure de-ionized water: no chemicals and no hard-water streaks. Most clients bundle window cleaning with their annual solar panel cleaning in a single visit.
The method
The streak on a washed window is mineral residue
Tap water carries dissolved minerals. When it dries on glass, those minerals stay behind as spots and film. That is why windows washed with a hose and squeegee so often dry cloudy.
De-ionized water works differently. With the minerals removed, the water acts like a solvent on grime and then evaporates to nothing. No spots, no film, no chemicals, and no detergent residue attracting new dust.
It is the same system we trust on solar glass, where residue directly costs our clients energy production. Your windows get the identical standard.
Scope of work
What every window cleaning includes
- 100% de-ionized water, zero chemicals
- No hard-water spots or streaks
- Frames and sills rinsed as we go
- Water-fed pole reach for upper stories
- Bundle pricing with solar panel cleaning
- Free written quote before any work begins
Questions
Asked and answered
De-ionized water has its minerals removed, so it dries without spots or streaks. Tap water leaves mineral deposits behind, which is exactly what causes the cloudy film on freshly washed windows.
No. Our window cleaning uses pure de-ionized water and soft brushes only. Nothing harsh touches your glass, frames, or landscaping, and nothing is left behind.
Yes, and most clients do. The same pure-water system handles both, so bundling saves a second visit and a second setup. Ask for both when you request your quote.
Also from Northwest Solar Clean
Free quotes, in writing
Ready for cleaner panels?
Every quote is free and in writing. Tell us about your array and we will take it from there.