- Remove dirt, mold, and mildew: Power washing strips away accumulated dirt, mold, and mildew. This enables paint to stick to the surface properly, ensuring a lasting finish.
- Prevents peeling and flaking: Paint peeling and flaking often occur due to poor surface preparation. Power washing removes dirt buildup, creating a suitable condition for paint adhesion.
- Exposes surface damage: Power washing exposes hidden issues like wood rot, cracks, or loose siding that need repair before painting. Addressing them early prevents a costly repainting job.
- Saves time and labor during painting: Proper cleaning reduces the need for excessive scraping, sanding, or priming. Paint spreads more evenly on clean surfaces, requiring fewer coats for complete coverage. This means you have to spend less time and money on your painting project.
- Improves paint longevity: A properly prepared surface can significantly increase your paint’s lifespan. Paint layers adhere securely when applied to clean surfaces. This also slows down damage due to weather elements like UV rays and moisture.
Our Power Washing Services
Power washing is a key step in our exterior painting prep—it helps ensure a clean surface so the paint adheres properly and lasts longer. We tailor our approach based on your property's materials and condition. Our services include:

Exterior Home Washing
Your home’s exterior walls collect dirt, grime, and chipping paint over time, all of which can interfere with a quality paint job. We power wash these surfaces to remove buildup and loose paint, creating a clean foundation for fresh coatings. This also helps reveal issues like cracks, mildew, or pest damage that should be addressed before painting begins.

Deck and Fence Cleaning
Before painting or staining your deck or fence, we begin with a thorough power wash to clear away dirt, mildew, and surface debris. Whether it’s natural wood or composite, we adjust our cleaning methods to suit the material, helping ensure the finish adheres evenly and holds up over time.

Commercial Property Prep
For large-scale commercial painting projects, we use power washers to clean all exterior surfaces as a critical first step. This consistent, property-wide prep removes dirt and buildup, restoring the surface and providing a clean, reliable base for long-lasting professional paint results.
Benefits of Power Washing Before Painting
Power washing your property before painting is important for the following reasons:
Surfaces We Clean With Power Washing Services
Our power washing preparation services are designed for the following surfaces:
- Wood: We restore worn-out wood surfaces such as decks, fences, and siding. Our soft wash techniques eliminate mold spores, dirt, and contaminants while preserving the originality of the wooden surfaces.
- Concrete: Concrete surfaces in your garages, walkways, walls and patios are porous and tend to accumulate dirt over time. This causes discoloration of the surface, ruining its aesthetic appeal. We use high-pressure washers to remove the dirt from the pores of the surfaces, making them look like new.
- Brick, stucco, and stone exterior surfaces: We power wash highly porous materials like brick, stucco, and stone exterior surfaces. This involves using the soft-wash technique to prevent the surface from eroding. We use the right amount of pressure so that all the impurities wash away efficiently without any damage.
- Vinyl and aluminum siding: For vinyl and aluminum siding, we use a low-pressure nozzle and specialized cleaning solutions. It keeps the siding clean and ready for a fresh layer of paint.
- Metal railings and gates: Our power-washing process for metal railings and gates removes oxidation and corrosion. It also keeps the surface protected from accelerated rust formation. We thoroughly clean the surface while keeping the surface details protected.
Get a Free Exterior Estimate, Power Washing included in Boise, Idaho
Looking to refresh your home or building’s exterior? Get a free estimate that includes power washing as part of our complete exterior painting process. We’ll assess your property, discuss your goals, and provide a detailed quote that covers all the prep and painting work needed for long-lasting results. Connect with Boise Commercial & Residential Painting for a free consultation.
Frequently Asked Questions
You can paint your home without power washing, but it is not recommended. Skipping the power washing step can affect the quality and durability of the paint job. Painting on a dirty surface may lead to premature peeling and an uneven finish. If power washing is not an option, you can manually clean the surface using a stiff brush and mild detergent to ensure a lasting paint finish.
After power washing the surface, it is best to wait between 24 to 48 hours before applying paint. Drying time mainly depends on the weather conditions, surface material, and the type of paint used.
Yes, it is safe to power wash wood or old siding if you are careful. Intense pressure can strip the surface. Therefore, professionals use low-pressure power washers to clean wood or old siding effectively without causing damage.
Yes! At Boise Painting, every exterior painting project includes power washing as part of our standard prep process. We believe a clean surface is essential for a durable, long-lasting paint job. Power washing removes dirt, grime, and loose paint, ensuring your new finish adheres properly and looks its best. No need to book it separately—it’s already built into your exterior painting package.