How to Clean Stucco with Pressure Washing

Stucco is a popular exterior building material known for its durability and aesthetic appeal. However, like any other surface, stucco can accumulate dirt, grime, and other stains over time, making it look old and worn out. One of the most effective ways to clean stucco is by using a pressure washer. Pressure washing stucco can remove dirt and stains from the surface, making the stucco look brand new. 

In this blog, we will discuss the proper techniques for cleaning stucco with a pressure washer, as well as the necessary equipment and safety precautions to take. Whether you are a homeowner or a professional cleaner, this guide will provide you with the knowledge and skills you need to make your stucco surfaces shine like new.

Preparation for Pressure Washing Stucco

Before starting the pressure washing process, it is essential to take necessary precautions to ensure the safety of the surrounding area and the stucco surface. This section will cover the preparation steps required for pressure washing stucco, including inspecting the stucco for damage, removing any obstacles, and wetting the surrounding area.

Inspect it before your Exterior Stucco Cleaning Project

Firstly, it is important to inspect the stucco surface for any damage or cracks. Pressure washing can worsen any existing damage, causing further problems. Therefore, inspecting the stucco beforehand can help identify any areas that need repairing before cleaning. Power cleaning stucco with existing damage can result in water seeping into the walls, which can lead to further damage.

Remove Obstacles before Power Cleaning Stucco

Secondly, it is important to remove any obstacles and cover nearby plants and outdoor furniture to avoid any damage. Pressure washing can cause debris and water to fly around, causing damage to nearby items. Therefore, it is best to remove any items that can be moved and cover plants and outdoor furniture that cannot be removed.

Wet the surrounding areas

Lastly, wetting the surrounding area before starting the pressure washing process can help prevent dust and debris from flying around. Wetting the surrounding area before starting the pressure washing process can also help loosen the dirt and debris, making it easier to clean. Proper exterior stucco cleaning requires proper preparation to achieve the best results. By following these preparation steps, you can ensure a safe and effective cleaning process.

Pressure Washing Stucco Techniques

Now that we have covered the preparation steps for pressure washing stucco, it is time to move on to the pressure washing techniques. This section will cover how to set up and use a pressure washer, how to start from the top and work downwards, and how to adjust the pressure depending on the stucco type and level of dirt.

Set it up

Firstly, it is important to set up the pressure washer properly before using it. Ensure that all the components are in working condition and that the water supply and electricity are connected correctly. Once the pressure washer is set up, it is important to use the right nozzle for the job. A nozzle with a wider spray pattern is better suited for stucco surfaces to avoid any damage.

Start from the top when Power Cleaning Stucco

Secondly, when power cleaning stucco, it is essential to start from the top and work downwards, covering small sections at a time. This technique ensures that the dirt and debris are removed systematically and avoids any missed spots. Starting from the top also ensures that dirty water does not drip onto areas that have already been cleaned.

Adjust the pressure

Lastly, it is important to adjust the pressure depending on the stucco type and level of dirt. Different stucco types can handle different pressure levels, and using the wrong pressure level can cause damage. It is recommended to start with low pressure and gradually increase it until you find the right level for your stucco surface. Additionally, adjusting the pressure depending on the level of dirt can ensure that the surface is cleaned thoroughly.

Cleaning Solutions used for Exterior Stucco Cleaning

Using the right cleaning solution is crucial to achieving a spotless and clean stucco surface. This section will cover the different options for cleaning solutions when power cleaning stucco, such as vinegar or bleach, and provide a recipe for a homemade cleaning solution.

Vinegar or Bleach

Vinegar is an effective natural cleaning solution that is safe to use on stucco surfaces. It is a mild acid that can dissolve dirt, grime, and stains, making it an ideal choice for cleaning stucco. Bleach is another option for cleaning stucco surfaces, but it is important to use it with caution as it can cause damage to plants and surrounding surfaces.

Homemade Solution

If you prefer a homemade cleaning solution, you can mix 1 cup of white vinegar with 1 gallon of warm water. This mixture can be used to clean stucco surfaces and is safe to use around plants and animals. Another option for a homemade cleaning solution is to mix 1 cup of bleach with 1 gallon of warm water, but this should be used with caution and only on surfaces that can handle the strength of the solution.

It is important to note that cleaning solutions should be used in moderation and not left on the surface for too long. After applying the cleaning solution, it should be rinsed off thoroughly with water using the pressure washer to avoid any damage to the stucco surface.

Rinse and Dry 

Maintaining the appearance of the exterior of your home or business is crucial in creating a welcoming and attractive environment. Stucco is a popular choice for many properties due to its durability and aesthetic appeal. However, over time, stucco can accumulate dirt, grime, and other debris, resulting in a dull and unappealing appearance. This is where pressure washing or power cleaning comes in, a highly effective way to clean stucco.

Rinse the stucco thoroughly with clean water

Pressure washing stucco or power cleaning stucco involves using high-pressure water to blast away any buildup on the surface of the stucco. This process can remove even the toughest stains, leaving the stucco looking like new. However, after pressure washing, it is essential to rinse the stucco thoroughly with clean water to remove any remaining debris.

Let the stucco dry completely before applying any paint or sealer

Once the stucco has been cleaned and rinsed, it is crucial to allow it to dry completely before applying any paint or sealer. This ensures that the paint or sealer adheres correctly to the stucco and prevents any moisture from becoming trapped, which can lead to mold growth.

Exterior Stucco Cleaning Maintenance Tips

Stucco is a popular choice for many homeowners and business owners due to its durability and attractive appearance. However, like any exterior surface, stucco requires regular maintenance to keep it looking its best. In this section, we will provide advice on how to keep stucco clean and in good condition, as well as how often stucco should be pressure washed.

Tips on how to keep stucco clean and in good condition

To maintain the appearance of your stucco, it is essential to clean it regularly. Regular cleaning can prevent the buildup of dirt, grime, and other debris, which can cause the stucco to become discolored or stained. Additionally, regular cleaning can prevent the growth of mold and mildew, which can be harmful to your health.

One of the most effective ways to clean stucco is through pressure washing or power cleaning. However, it is essential to be careful when pressure washing stucco, as too much pressure can damage the surface. It is recommended that you hire a professional to pressure wash your stucco to ensure that the job is done correctly and safely.

How often should stucco be pressure washed?

In terms of how often stucco should be pressure washed, it depends on several factors, such as the climate, location, and amount of foot traffic around your property. Generally, it is recommended that stucco be pressure washed every 2-3 years. However, if you notice any buildup or discoloration on your stucco, it may be necessary to pressure wash it more frequently.

Conclusion

Pressure washing is a powerful and effective method for cleaning stucco surfaces. By following the proper techniques and taking necessary safety precautions, you can quickly and easily remove dirt, grime, and stains from your stucco walls, leaving them looking like new. Remember to inspect the stucco for damage, prepare the area, use the correct pressure washing techniques and cleaning solutions, and let the stucco dry completely before applying any paint or sealers. By doing so, you can prolong the life of your stucco and maintain its aesthetic appeal for years to come. 

Regular maintenance with pressure washing can also help you avoid costly repairs down the line. We hope this guide has been helpful in providing you with the knowledge and skills you need to effectively clean your stucco with a pressure washer.

FAQs

Is pressure washing safe for stucco?
Yes, pressure washing is safe for stucco as long as it is done correctly. The pressure should be set to a low to medium level, and the nozzle should be held at least 1-2 feet away from the surface. It's also important to use the appropriate cleaning solution and technique for your particular type of stucco.

Can pressure washing damage stucco?
If done incorrectly, pressure washing can damage stucco. Using too high of pressure or holding the nozzle too close to the surface can cause the stucco to chip, crack, or even come off entirely. That's why it's important to hire a professional pressure-washing company that has experience cleaning stucco.

How often should stucco be pressure washed?
The frequency of pressure washing stucco depends on a few factors such as the location of the property, the amount of dirt and grime buildup, and the weather conditions. In general, stucco should be pressure washed at least once a year to keep it looking clean and prevent any potential damage from dirt buildup.

Can I pressure wash my stucco myself?
While it is possible to pressure wash your stucco yourself, it is not recommended unless you have experience doing so. Improper pressure washing can lead to damage and costly repairs. It's best to hire a professional pressure washing company that has the necessary tools, equipment, and expertise to clean your stucco safely and effectively.

What cleaning solution should I use for pressure washing stucco?
The cleaning solution you should use for pressure washing stucco depends on the type of stucco you have and the extent of the dirt buildup. Some common cleaning solutions for stucco include a mixture of water and bleach, a vinegar solution, or a specialized stucco cleaner. It's important to follow the manufacturer's instructions for any cleaning solution you use and to test a small area before applying it to the entire surface.