Things You'll Need:
- Towel
- Safety glasses
- Pressure washer
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Step 1
Check the manufacturer's warranty on your windows before cleaning them with a pressure washer. Pressure washing voids some warranties.
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Step 2
Place a rolled up towel on the inside of the window you are cleaning to absorb any water that seeps in.
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Step 3
Inspect each window before cleaning. Check for dents, gaps or holes that may allow water to enter. Don't use a pressure washer on a damaged window.
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Step 4
Set the pressure washer at the lowest power when cleaning windows.
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Step 5
Stand at least 5 or 6 feet away from your home and test the spray of your pressure washer by aiming it towards an area without windows first, to make sure it is not too powerful.
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Step 6
Hold the nozzle at a 45-degree angle, spraying down towards the window. Starting at the top of the window, move the nozzle across the width of the window back and forth until you have sprayed the entire surface. Again, make sure the pressure is not too high to avoid damaging your windows.
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Step 7
Spray the window ledge and area underneath your window to remove the dirty water runoff.








