Power washing, also known as pressure washing, can significantly improve the longevity and appearance of your new paint job. In this blog post, we will explore the benefits of power washing prior to painting, including cleaner surfaces, easier application, and improved paint adhesion.

We will also provide step-by-step guidance on how to effectively power wash your home’s exterior by gathering supplies and preparing the area, choosing the right pressure washer setting, working from top to bottom, rinsing thoroughly and allowing sufficient drying time.

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Benefits of Power Washing Before Painting

Power washing your house ahead of painting its exterior presents a range of advantages that can help you save time, effort, and money in the future. In this section, we will discuss three key benefits of power washing: a cleaner surface for painting, easier application of paint, and improved paint adhesion.


Cleaner Surface

One major benefit of power washing your house before painting is that it removes dirt, grime, mold, mildew, and other contaminants from exterior surfaces. This ensures a clean canvas for applying fresh paint and helps to prevent any potential issues with the new coat adhering properly to the surface.


Easier Application

A clean surface also makes it much easier to apply paint evenly across all areas of your home’s exterior. When there are no obstacles like dirt or debris on the surface being painted, paint goes on more smoothly; allowing you to achieve an even finish without having to go over certain spots multiple times due to uneven coverage.

  • Better Coverage: A cleaner surface allows for better coverage as there are fewer imperfections for the paint to cover up or get trapped in.


  • Faster Application: With less need for touch-ups or reapplication due to poor adhesion caused by dirt or debris on the surface being painted; power washing can help speed up overall project completion time.


  • Smoother Finish: Paint applied over a clean substrate is more likely to dry evenly resulting in a smoother, more professional-looking finish.


Improved Paint Adhesion

Another important benefit of power washing before painting is improved paint adhesion. By removing dirt, grime, and other contaminants from the surface, you’re ensuring that the paint can bond properly to your home’s exterior. This helps prevent issues like peeling or flaking down the road and extends the life of your new paint job.

Power washing your house before painting not only provides a cleaner surface for easier application but also improves overall paint adhesion. The outcome of a power-washed house prior to painting is an eye-catching and resilient finish that will remain stunning for many years.

Power washing your house before painting it can provide many benefits, such as a cleaner surface and improved paint adhesion. Therefore, understanding how to power wash your house is essential for achieving the best results.


How to Power Wash Your House

Power washing your house before painting is an essential step that ensures a clean surface for the paint to adhere properly. In this section, we will discuss how to power wash your house safely and effectively by gathering supplies, choosing the right pressure washer setting, starting from the top and working downward, and rinsing and letting dry completely.


Gather Supplies and Prepare the Area

Before you begin power washing your home, gather all necessary supplies such as a pressure washer, protective gear (gloves, goggles), cleaning solution designed for exterior surfaces, ladder (if needed), garden hose with spray nozzle attachment, broom or brush for scrubbing stubborn areas.

  • Remove any furniture or items near the area you plan on power washing.
  • Cover electrical outlets with waterproof tape or plastic bags to prevent water damage.
  • Sweep away loose debris from walls using a broom or brush.


Choose the Right Pressure Washer Setting

Selecting an appropriate pressure setting is crucial in ensuring effective cleaning without causing damage to your home’s siding material. For most homes made of vinyl siding or brick exteriors,use low-to-medium pressure settings between 1,300-2,400 PSI (Pounds per Square Inch).


Start from the Top and Work Downward

Begin power washing your house from the top, working your way down to prevent dirty water from running over clean areas. Follow these steps:

  1. Attach a garden hose with spray nozzle attachment to the pressure washer.
  2. Mix cleaning solution according to manufacturer instructions and add it to the pressure washer’s detergent reservoir.
  3. Start at one corner of your home, applying even strokes in a downward direction while maintaining a consistent distance (approximately 6-12 inches) between the nozzle and siding surface.


Rinse and Let Dry Completely

After completing power washing, thoroughly rinse off any remaining soap or debris using fresh water from your garden hose. Allow adequate time for surfaces to dry totally prior to beginning with painting; this could take up to a day contingent on the weather conditions. Proper drying is crucial as it ensures optimal paint adhesion and prevents potential issues such as bubbling or peeling later on.

Taking these steps will help you achieve an effective power wash that prepares your home’s exterior for its upcoming paint job. Remember always practice safety precautions when handling equipment like pressure washers, ladders, etc., during this process.

Power washing your house can be a great way to get it prepped for painting, however if you lack the aptitude or don’t possess the necessary apparatus, enlisting an expert may be wise. Moving on, let’s take a look at when you should consider hiring someone else for power washing services.

Man power washing house exterior

When to Call a Professional for Power Washing Services

If you’re considering power washing your house before painting, it’s essential to know when it’s best to call in the professionals. While some homeowners may feel comfortable tackling this task themselves, there are certain situations where hiring an expert is the safer and more efficient choice.


High-Risk Areas or Surfaces

Power washing can be dangerous if not done correctly, especially when dealing with high-risk areas or surfaces around your home. For example, if your house has multiple stories or hard-to-reach spots that require ladders or scaffolding, attempting DIY power washing could put you at risk of injury from falls.

In addition, some surfaces like wood siding and stucco can be easily damaged by improper pressure washer use. A professional will have experience working with various materials and know how to clean them without causing harm.


Lack of Time or Experience

Calling in a professional is the wiser choice if you lack the time or experience to use a pressure washer safely and effectively. Properly using a pressure washer requires knowledge of technique and safety precautions; inexperienced users run the risk of damaging their property or even injuring themselves.

  • Avoid spending hours learning how to operate equipment safely;
  • Ensure thorough cleaning without risking damage;
  • Save valuable time that could be spent on other tasks related to preparing for painting.


Need for Specialized Equipment

Sometimes specific circumstances might require specialized equipment that you don’t have access to as a homeowner. For example, if your home has stubborn stains or mold growth that won’t come off with standard pressure washing techniques, a professional may use specialized attachments or cleaning solutions designed for these issues.

Hiring an expert in power washing services can help ensure the job is done right and save you from investing in expensive equipment you might not need again.


FAQs: Should I Power Wash My House Before Painting It?

Do you have to power wash exterior before painting?

Yes, it is highly recommended to power wash the exterior of your house before painting. Power washing removes dirt, grime, mold, and loose paint, providing a clean surface for better paint adhesion and a smoother application.

What should I clean the exterior of my house with before painting?

Clean the exterior of your house using a pressure washer with an appropriate detergent specifically designed for cleaning home exteriors. This will effectively remove dirt, mildew, algae, and other contaminants from the surface without damaging it. Here are some top-rated siding cleaners.

Is it better to pressure wash or scrape paint?

It’s best to use both methods when preparing your home for new paint. Pressure washing efficiently removes loose paint while also cleaning surfaces; however, scraping may still be necessary in areas where stubborn old paint remains after power washing.

What happens if you don’t power wash your house?

If you don’t power wash your house before painting, dirt and debris can interfere with proper adhesion of new paint layers leading to uneven coverage or premature peeling. Additionally, mold growth, which could cause health issues or damage over time, might not be adequately addressed.



After reading this article, you now know the benefits of power washing your house before painting it. Not only does it provide a cleaner surface for easier application, but it also improves paint adhesion. Additionally, we provided tips on how to power wash your house and when to call a professional for power washing services.

So, should you power wash your house before painting it? The answer is yes! Power washing your house prior to painting is a key factor in guaranteeing that the fresh layer of paint looks good and stays put for longer. If you’re ready to get started on your home improvement project, contact Aybar Painting for expert assistance!

Let Aybar Painting help you with all your exterior painting needs!