How Water-Fed Window Washing and RO/DI Filtration Work

Tom White

Oct 15

1 min read

Why we filter the rinse water

Ordinary water contains dissolved minerals. RO/DI filtration reduces those minerals before the water reaches the glass. This is different from using a pressure washer: a water-fed pole delivers filtered water through a brush for exterior window cleaning.

1. Prepare the window

We assess access, frames, screens and visible glass conditions. Loose debris and dirty frame edges need attention so they do not contaminate the final rinse. Damaged seals, oxidized frames or inaccessible windows may need a separate plan.

2. Brush the glass and frames

A soft water-fed brush agitates dirt while water flows through the head. The pole allows suitable exterior windows to be reached from the ground where access permits. Reach and access depend on the property; we do not promise every window can be cleaned by one method.

3. Rinse and let the glass dry

After agitation, a thorough purified-water rinse carries loosened dirt away. The glass is allowed to air-dry. Water quality, technique and frame condition all influence the result, so we check the work rather than rely on filtration alone.

What needs a separate quote?

Window washing starts at $299. Screens, interior glass and removal of existing hard-water or calcium deposits are quoted separately. Pure water does not automatically dissolve old mineral stains or repair etched glass.

Prepare for an estimate

Send exterior photos, an approximate window count, the number of stories and notes about screens or difficult access. We will explain the proposed scope before work begins.