Pressure Washing Siding

Vinyl and aluminum siding has stood the test of time and is one of the most popular choices for house siding today. One of the things that has kept them popular is the ease of cleaning, and pressure washing makes the task an easy D.I.Y. job that can be done in just a few hours. Get your house exterior looking good as new with these tips for pressure washing siding.

Choosing the Right Pressure Washer

As with any other task, the right tool for the job makes everything work out right, and you’ll need to choose the right pressure washer. An electric model provides enough water pressure for a single story home. To clean multi-story homes, you may need a gas powered model in order to reach the top.

Cleaning Solution

Water alone will do the job, but adding a cleaning solution to the water will do the job much better. Use a cleaning solution that is approved for use in a pressure washer and use it according to manufacturer’s directions.

Bottoms Up

Set the pressure on its lowest setting and begin washing the siding from the bottom up. Use long, slow strokes that overlap as you work your way up to the top of the house.

Keep the angle of the water aimed downward so the water does not go underneath the horizontal laps of the siding.


Pressure washers have various attachments that can make cleaning your siding easier. A soap lance attachment will allow you to spray soapy water up to 25 ft. high so washing the second story is a breeze. A rotating brush that fits onto the end of the spray wand will allow you to scrub away stubborn stains while washing the siding.

Take a Break

After applying the soap solution, let it set on the siding for 10 minutes to loosen and lift all dirt and stains. Just don’t allow the soap to dry on the siding, or you’ll have to wash it all over again. It is better to wash your siding on a cooler day to mitigate any drying that may occur.


Start at the top and rinse down the siding. Use the lowest water pressure possible and overlap each stroke as you work downward.

Be careful to avoid wetting outside light fixtures, eaves and vents. Rinse until all signs of soap are gone.

Other Uses

If you think buying a pressure washer to clean siding is too big of an investment, remember that a pressure washer has other uses around the house. Wash your boat, driveway, sidewalk and deck with it or strip off old paint prior to re-painting or staining something around the house. There are also stores that rent pressure washers if you do not want to make the investment. As with any power tool, test it out first to make sure you know how it works to prevent any issues.

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