Should you power wash windows?
Daniel Martin
Published Jan 21, 2026
Windows. Don't pressure wash windows! The high pressure can break them, giving you a major headache and an expensive window to replace. Instead, wash your windows the right way with these tried-and-true window washing tips from professionals.
Can pressure washing damage window seals?
The high pressure water can also break the seals between the windows and doors allowing water into your home which can then cause mould on the inside walls. It can also soak and damage your furniture, belongings, carpeting and hardwood floors.What is the best way to wash windows?
Spray your windows with a generous amount of glass cleaner. Using a lint-free paper towel or microfiber cloth, wipe your windows from top to bottom. If you see any streaks, give them another wipe until the glass is clear.What should you not power wash a house?
Pressure washing also takes some skill. Spraying too aggressively could harm siding or paint—in fact, pressure washing is not recommended for bottle-dash and rock-dash stucco or for fiber cement siding, all of which could be damaged by the process.How do you power wash around a window?
How to Pressure Wash Windows
- Cover up anything outside you don't want to get wet.
- Close your windows and make sure they're water tight.
- Remove any screens from the windows.
- Fill your pressure washer tank with window cleaner.
- Attach the widest nozzle you have to the pressure washer.