Pressure Washing for Brick Walls: Do’s and Don’ts

Brick walls can make any property look elegant and timeless. But, over the years, grime, algae, and dirt take a toll. Pressure washing comes to the rescue, but you have to be careful. Brick isn’t like concrete or siding; it has unique needs. So, let’s dive into how to pressure wash brick walls the right way.

Why Brick Walls Need Special Attention

Brick walls might look tough, but they can be fragile. The brick itself is durable, but the mortar holding everything together is sensitive. High pressure can weaken the mortar, leading to cracks and damage. That's why knowing the dos and don’ts of pressure washing brick is essential.

What You’ll Need for the Job

Before you start, gather the right tools. A pressure washer pistol is ideal for precision. It allows you to control the spray and angle better. If your patio area has brick flooring too, having a tile floor cleaning machine nearby can simplify your overall cleaning routine.

And, if there are any outdoor carpets around the brick, a carpet extractors commercial cleaner can make the space spotless.

Do: Check for Damage First

Inspect your brick wall before washing. Cracks or crumbling mortar can worsen under pressure. Repair these areas to prevent further issues. Also, check if the brick is sealed. Unsealed brick absorbs water, which leads to mold growth or erosion.

Don’t: Use Maximum Pressure

Using high pressure on brick is a huge mistake. It can strip the mortar, leaving your wall vulnerable. Stick to a lower PSI setting, ideally between 500 and 1000 PSI. Start at the lower end and adjust if needed.

Do: Use the Right Nozzle

Selecting the proper nozzle is crucial. A 25-degree nozzle works well for most brick surfaces. It provides a wide spray that covers more area without causing harm. Your pressure washer pistol gives you control, so use it wisely.

Don’t: Point the Spray Directly at the Mortar

Always avoid aiming the spray directly at the mortar lines. The force can weaken or remove the mortar entirely. Instead, angle the spray to hit the brick surface gently. This keeps your wall sturdy and intact.

Person wearing yellow rubber boots with high-pressure water nozzle cleaning the dirt in the tiles

How to Pressure Wash Brick Walls Properly

Let's break down the steps to get a clean yet safe wash.

1. Prep the Area

Remove any furniture, plants, or obstacles near the wall. Cover delicate plants with a tarp to shield them from the water and cleaning solution. If your brick wall is near outdoor rugs, clean those separately with carpet extractors commercial models.

2. Rinse the Wall with Water

Before applying soap, rinse the wall with plain water. This loosens dirt and makes the cleaning solution more effective. Use your pressure washer pistol to get an even spray.

3. Apply a Cleaning Solution

Mix a gentle brick cleaner or a biodegradable detergent in your pressure washer. Avoid harsh chemicals that can damage the brick. Apply the soap evenly, starting from the top and working your way down.

Let the cleaner sit for 5-10 minutes. Don’t let it dry, though. You want it to stay damp for the next step.

Do: Use a Gentle Scrub for Stubborn Stains

Sometimes, pressure washing alone won’t remove everything. A soft-bristle brush can help. Gently scrub stained areas, but be careful not to damage the brick or mortar.

4. Start Washing from the Top Down

Always begin washing from the top. This method prevents dirty water from streaking over clean sections. Keep your pressure washer pistol moving to avoid concentrating force in one area. Work in small sections for better results.

Don’t: Ignore Safety Measures

Brick debris can fly around while washing, so protect yourself. Goggles and gloves are a must. Also, keep children and pets away from the area.

Handsomen man in a white shirt washing his car

Post-Wash Care for Brick Walls

Once you finish, inspect the wall again. Check for any new cracks or loose mortar. If you find damage, make repairs immediately to keep the wall strong.

Seal Your Brick Wall

Sealing is a crucial step if you want to maintain a clean, long-lasting brick wall. A quality sealer protects the brick from water damage and future grime. Reapply every few years for maximum protection.

Maintaining Your Brick Wall

Regular maintenance goes a long way. Sweep dirt off the wall every few months. If you have a brick patio, use a tile floor cleaning machine to keep it tidy. This reduces the need for frequent pressure washing.

For nearby carpets or rugs, carpet extractors commercial cleaners can handle deep-set dirt. This keeps your entire outdoor area looking top-notch.

Conclusion

Pressure washing brick walls is an art. You need to balance force with caution. Done right, it revives your walls and extends their life. Done wrong, it could lead to costly repairs. So, follow these do’s and don’ts, and your brick walls will stay spotless and stunning.