Here’s How Often You Should Pressure Wash Your House to Keep It Pristine

Jess Lynk
Written by Jess Lynk
Updated December 10, 2021
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Your home is your haven, so of course you want its exterior to look as beautiful as possible. Despite its name, pressure washing is not as daunting as it seems. In fact, it’s a quick and efficient way to clean dirt and grime off your home.

But don’t pick up that high-powered hose just yet. Read on to learn about pressure washing, including why and how often you should do it.

What Is Pressure Washing?

A man washing the roof with a high pressure washer
Photo: Jne Valokuvaus / Adobe Stock

Pressure washing is when you use a strong stream of water to blast away dirt, soot, mold, and other unsightly grime. One main benefit to pressure washing is that you can usually reach most areas without a ladder.

Why Pressure Wash Your House?

Pressure washing is a great way to add curb appeal to your home; it also keeps mold and mildew at bay. Also, dirt and grime can break down your home’s paint and cause wood to rot, so getting ahead of the problem can stop expensive issues before they start. Another plus? Pressure washing lets you clean those hard-to-reach places without vigorous scrubbing (your back will thank you).

If you’re not up to pressure washing your house yourself, you can hire a professional to take the job off your hands.

How Often Should You Pressure Wash Your House? 

Deciding how often you should pressure wash your house largely depends on where you live. 


Mold and mildew thrive in warm, humid climates. But you’re not off the hook if you live in a cold area—wind and rain can deposit a lot of dirt on your home. The more mold, mildew, and dirt your home collects, the more often you’ll need to pressure wash. 


Sap can collect on your home if you live in a rural area with lots of trees. Similarly, a nearby dirt road can wreak havoc on your siding. City-dwellers aren’t in the clear, either—let’s not forget about the soot and pollution of populated areas.

Regardless of where you live, it’s smart to give your house a thorough pressure wash at least once a year, though you may need to do it as often as every few months. A good rule of thumb (literally!) is to run your finger along your siding to see how much dirt is there. If it’s a thick layer, it’s time to pressure wash.

Are There Any Cons to Pressure Washing?

When pressure washing a home, it’s important to be mindful of how much water you’re using. A high-pressure, low-volume nozzle can help reduce water waste. 

Power washing, which is different from pressure washing in that it uses heated, soapy water, can release cleaning agents into the ground. If you decide to use soap during your wash, use a phosphate-free detergent, which is available at hardware stores. 

How Much Does It Cost to Pressure Wash?

Pressure washing costs range from $100 for small areas to $650 or more for an entire home. On average, it costs $0.10 to $0.50 per square foot to pressure wash a house. If you go the DIY route, you’ll save on labor costs, which run about $25 to $100 per hour. 

If you do the job yourself, you’ll have to rent or buy pressure washing equipment. You can expect to pay $35 to $175 per day to rent a pressure washer or $100 to $1,000 to buy one.

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