How To Pressure Wash A Brick House: Complete Step By Step Guide


Let’s face it. Any exterior gets dingy over time, including the brick wall of your house. So, you might be having a hard time cleaning that unwanted stuff. But, here, you will learn how to pressure wash a brick house.

Choosing A Pressure Washer

Pressure Wash A Brick House

For pressure washing the bricks, you will need a pressure washer in the first place. The PSI of a pressure washer will play a vital role in the washing. People make a mistake right here.

Experts suggest choosing a washer within the 2000 PSI range. If you choose a 5000 PSI pressure washer, it might scar up the brick and cause you extra bucks. If you have a pressure washer for washing cars, that will be a bonus. 2000 is ideal pressure washer psi for brick. Still, if you have a different pressure washer, always stay under 3000 PSI.

Preparing The Brick Wall For Pressure Washing

Preparing The Brick Wall For Pressure Washing

Surface preparation is essential for pressure washing a brick wall. Why? Because you do not want to let, the water pass through the outer surface. This can cause huge damage to the wall. Follow these steps for avoiding any internal damage.

  1. Apply Mortar: Brick mortars can be damaged over time. Look for missing mortars between the bricks. Apply new mortar between the bricks where needed. Let the mortar dry for four to five days. This will give the best result.
  2. Clear the Area: As long as you want the fun of pressure washing, please make the area clear of obstacles. For example, pressure washing might damage your favourite garden flower.
  3. Gentle Wash: Brick is a porous material. You might not want the detergent to be soaked in the brick wall. To avoid this, gently spray water on the brick wall to make it wet enough.

Pressure Washing The Brick Wall

Pressure Washing The Brick Wall

  1. Load With Detergent: Load the pressure washer detergent tank with proper detergent cleaning brick. Choose a detergent that is appropriate for brick washing. If you do not use an appropriate detergent, there may still be some dirt left on the mortars.
  2. Spray the detergent: The key to proper brick pressure washing is using more detergent and water. As you already know, detergent and water will be soaked a little bit. You need to use more detergent. Spray the mixture with minimum pressure and leave it for a while without letting it dry. Spray properly from bottom to top with detergent.
  3. Use a Brush: If there is stubborn dirt in the mortar, use a solid brush to rub those places.
  4. Start Pressure Wash: Start from the bottom with your pressure washer spray. Always maintain some distance from the brick. Too close means too much pressure. Properly wash off the detergents from the bricks.

You might need to do the pressure washing process again for your desired result. The first wash may not be as good as you dreamed about due to heavy stains. However, this is the best way to clean a brick house.

Finish your job by using some sealant if possible. This will help block water from entering the inner side of the wall.


Safety Gloves

Always remember to use pressure washer safety tips that come with the manual. Safety shoes and goggles are mandatory for using a pressure washer.

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Preeti Shah is a person who loves checking out different styles and designs of houses. She took interior designing in college and is practicing in the field of home improvement for five years now. In her spare time, she is usually searching the web for interesting and fascinating home designs.


  1. I like how you stated that pressure washing can even include detergent for a thorough cleaning process that’s very quick to do. Since my aunt’s new luxury house is very large, we were anxious about giving it a cleanup job before we settle in for Christmas. However, now that I know a faster way to do this thoroughly, I’ll look for a pressure washing service we can hire to help us out.

  2. Thanks for pointing out that brushes are still important to use when it comes to commercial pressure washing services. A friend of mine is planning to buy a franchise of a pizzeria business someday. Since the walls of the establishment are made of bricks, its exterior might be a bit trickier to clean regularly.


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