There are a few reasons why you may want to consider pressure washing the exterior of your windows. Whether you’re doing an annual cleaning, or doing a deep cleaning before re-painting or replacing the window trim, removing built up dirt and grime is necessary. The best way to really get down to the nitty gritty is to use a power washer.

There are 5 simple steps you should take to complete your pressure washing project successfully. Follow these 5 steps to DIY and safely pressure wash your windows:

1. Inspect all windows

Before you begin using the pressure washer, its imperative to inspect the condition of your windows, as well as the caulk and glazing around the panes. Be sure there are no cracks or broken panes, and that the caulk and glazing are intact. If there are any damages that need to be repaired, hold off pressuring washing until they have been completed.

Pressure washers can help to loosen and remove chipping paint, but they can also cause damage to bare wood if the pressure is too high. Be careful of any areas on the trim that are damaged or need repainting.

2. Protect

Use your garden hose to soak the soil around your home, and spray down any bushes or foliage underneath the windows where you will be working. Wetting down the area will help to protect plants from chemical burns, and will help to dilute the soap solution before it seeps into the ground.

3. Prepare

*It is imperative to follow all manufacturer’s operation instructions for any pressure washing machine you are using.*

Look for a pressure washer soap solution that is designated safe for siding, windows, and sidewalks. Pour the soap into the machine’s reservoir, and attach the low sudsing soap tip to the hose. Turn on the pressure washer, and hold the trigger until you can see soap in the running water.

4. Clean

Keeping the wand at least 3 feet away from the surface of the window, aim the spray at the trim at about a 45-degree angle. Spraying the windows and trim at this angle will help to lift and remove dirt that blasting it straight on will not. Use the soapy spray to loosen flaking paint, and get rid of any dirt and debris that has built up on the windowsill and glass.

5. Rinse

When you’re done spraying on the soap solution, turn the machine off and switch to the ‘general use’ tip. This will provide a higher pressure stream of rinse water to remove the soap solution, and any dirt or grime that has been loosened by the soap. Start at the top of the window, and work your way down, spraying all areas until the water runs clear of soap.

After the windows have thoroughly dried, be sure to do another inspection to re-assess the condition of the windows and caulk. Double check window panes, and insulation to make sure no damage was done during the cleaning process.