Window soft wash, so the walls do not ruin the glass

What is window soft wash?

Window soft wash means cleaning exterior glass, frames and often screens with low pressure and controlled chemistry during or alongside an exterior wash - then rinsing until residue is gone. It is not a substitute for detailed interior window cleaning, and it is not high-pressure blasting at sealed units. The failure mode everyone remembers is wall solution dried on glass as white film; the success mode is deliberate glass care written into the exterior wash scope.

Signs you need window soft wash

• After a house wash, windows dried with streaks, haze or white ghosting
• Screens are grey-green and push dirty water onto glass every rain
• Exterior frames and mullions show mildew while glass alone was "cleaned" once
• Hard-water spots from sprinklers ring the lower sashes
• You want exterior glass handled in the same visit as siding soft wash
• Cobwebs and pollen pack the upper corners of frames out of reach from inside
• You can feel a chalky film on exterior glass after a recent wall wash
• Upper-storey panes are green at the corners while lower panes were hand-cleaned once

Seeing something not on this list? Browse pressure washing problems by symptom →

How window soft wash actually works

1. 1

   Decide scope: glass-only, frames, screens or full openings

   Soft-wash window work can mean a careful rinse after wall chemistry, a dedicated exterior glass pass, or screen removal and wash. Each is a different labour block. Glass is unforgiving of leftover surfactant; process discipline on sunny elevations matters as much as product brand.

   Watch for"Windows included" with no definition. That phrase hides more disputes than any other line on a house-wash invoice. Ask for that risk to be named on the walkthrough, not after damage shows.

2. 2

   Protect glass during wall application when walls lead

   If siding is soft washed first, competent crews manage overspray, work elevations to reduce dry-down on glass, and plan a glass-specific rinse or wash pass. Glass is unforgiving of leftover surfactant; process discipline on sunny elevations matters as much as product brand.

   Watch forSolution left to bake on sunny glass. Haze that appears after drying is often residue, not permanent etching - but removal is extra work you should not discover alone. Ask for that risk to be named on the walkthrough, not after damage shows.

3. 3

   Screens out, washed, and dried before reinstall

   Dirty screens re-contaminate glass immediately. They are cleaned separately, inspected for tears, and reinstalled only when they will not reprint grit. Glass is unforgiving of leftover surfactant; process discipline on sunny elevations matters as much as product brand.

   Watch forScreens sprayed in place and left. You paid for motion, not for clean light. Ask for that risk to be named on the walkthrough, not after damage shows.

4. 4

   Frames, weep paths and sealed-unit caution

   Frames and sills get soft cleaning; weeps should not be forced full of water into the wall. Failed seals on insulated glass are a window problem, not a wash defect to blast harder. Glass is unforgiving of leftover surfactant; process discipline on sunny elevations matters as much as product brand.

   Watch forHigh pressure at gasket lines. Driving water into failed IG units or rotten sills creates interior damage. Ask for that risk to be named on the walkthrough, not after damage shows.

5. 5

   Final glass pass and dry inspection

   A dedicated rinse or window-wash finish removes surfactant film. Inspection happens as glass dries - haze hides while wet. Glass is unforgiving of leftover surfactant; process discipline on sunny elevations matters as much as product brand.

   Watch forWalkthrough only while everything is shining wet. Come back to the shady elevation after dry-down if needed. Ask for that risk to be named on the walkthrough, not after damage shows.

What does window soft wash cost?

Exterior window soft wash may be bundled in a house-wash price or priced per pane/opening, with screen work and upper-storey access as adders. Pure interior window cleaning is usually a different trade rate. See the Cost Guide for exterior package structure.

See the full window soft wash cost guide - by material, size and region →

If the number is the problem, here are the ways people pay for it →