Professional soft washing that removes dirt, algae, mildew, and stains from your home's exterior without damaging your paint, siding, or finish.
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House washing is exactly what it sounds like - a thorough cleaning of your home's exterior surfaces to remove the grime, biological growth, and environmental buildup that accumulates over time. But the method matters enormously. At Pressure Wash Boise, we use soft washing rather than blasting every surface with high-pressure water. Soft washing combines low-pressure water delivery with professional-grade, biodegradable cleaning solutions that break down and rinse away organic material at the source.
The difference between soft washing and traditional high-pressure washing is significant when it comes to house exteriors. High-pressure water - especially when applied incorrectly - can drive water up under siding, crack mortar, strip paint prematurely, and damage delicate surfaces like wood trim or older stucco. Our soft wash approach cleans just as effectively, often more so, without any of that risk. The cleaning agents we use actually kill algae, mold spores, and mildew at the root level rather than just blasting the visible layer off the surface.
Boise gets a lot of sunshine, but it also deals with cold winters, spring moisture, and the kind of temperature swings that stress exterior materials. That combination creates ideal conditions for algae and mildew to take hold - especially on north-facing walls and shaded areas where moisture lingers longer after rain or morning dew.
The black streaks you see running down siding and rooflines are almost always a type of cyanobacteria called Gloeocapsa magma. It feeds on the limestone filler in roofing materials and spreads across siding surfaces over time. On rooflines and gutters, moss and algae create weight buildup and can compromise drainage. On the ground-level siding and foundation areas, mildew causes discoloration and, if left long enough, can begin to degrade paint and surface coatings.
The desert dust and wildfire smoke that rolls through the Treasure Valley during summer and fall also leave a fine, oily residue on exterior surfaces that doesn't rinse away in rain. Regular house washing keeps that buildup from becoming permanent staining.
Our house washing service covers every major exterior surface type found on Boise-area homes:
We follow a consistent four-step process on every house washing job to make sure the results are thorough and lasting:
We walk the property before starting, identify surface types, check for damage, and note any areas that need special handling.
We apply a biodegradable cleaning solution that begins breaking down algae, mildew, and biological staining at the surface level.
Using low-pressure equipment, we work section by section across the exterior, lifting dirt and dissolved organic matter safely.
We rinse all surfaces thoroughly, check for any missed areas, and walk the property again with you before we leave.
Beyond the obvious curb appeal improvement, regular house washing delivers practical value that affects your bottom line as a homeowner:
We are a locally owned operation based in Boise. We are not a franchise and not a call center that dispatches random contractors. When you call Pressure Wash Boise, you get the same crew every time, familiar with the neighborhoods and surface types common throughout Ada and Canyon Counties.
Our service area covers the full Boise metro - including Meridian, Eagle, Nampa, and Garden City. Meridian's newer subdivisions have a lot of vinyl siding and painted stucco that benefits from annual washing to keep those surfaces looking clean against the desert dust. Eagle's older custom homes often have wood siding and brick that needs careful, experienced handling. Wherever you are in the Treasure Valley, our team can help.
We are fully licensed and insured in Idaho. Our cleaning solutions are biodegradable and plant-safe. We have worked on homes ranging from small starter properties to large custom builds, and we price every job based on square footage and surface complexity - no guessing games.
Tell us about your home and we will get back to you with a straightforward price. No pressure, no obligation.
Answers to the questions Boise homeowners ask us most often.
Most single-family homes in Boise run between $250 and $550 for a full exterior house wash, depending on square footage, siding type, and the level of buildup. Two-story homes and properties with large surface areas fall toward the higher end. We provide free, no-pressure quotes so you know the price before any work begins.
Soft washing uses low-pressure water combined with professional cleaning solutions to remove algae, mildew, and dirt from exterior surfaces. Standard pressure washing relies on high-pressure water alone. For house exteriors, soft washing is the preferred method because it cleans more thoroughly without the risk of damaging siding, paint, or mortar joints that high-pressure can cause.
Most homes in the Boise area benefit from a full exterior wash every one to two years. Homes with significant tree coverage, north-facing walls, or shaded sections where moisture lingers may benefit from annual cleaning. If you can see visible green or black growth on your siding, that is a clear sign it is time to wash regardless of how long it has been.
Our soft wash process is designed specifically to be safe on painted and coated surfaces. We calibrate pressure and solution concentration based on the surface type - vinyl, wood, stucco, or brick. High-pressure washing done incorrectly can strip paint, but our low-pressure approach avoids that entirely. If there is pre-existing damage to your paint or siding, we will point it out during our initial walk-around before we start.
Yes, we clean both regularly. Stucco requires careful low-pressure application and appropriate cleaning solutions to avoid etching or surface erosion, and we have experience with both traditional and synthetic stucco finishes. Brick and mortar respond well to soft washing - we remove algae, efflorescence (the white mineral deposits), and atmospheric staining without degrading the mortar joints.
A typical single-story home in Boise takes two to three hours from setup to final rinse. A larger two-story home or a property with complex rooflines and detailed trim can take three to five hours. We work efficiently without cutting corners, and we do not leave until we are satisfied with the result.
You do not need to be present during the wash itself, but we do ask that someone be available at the start of the appointment so we can do a quick walk-around together and note any specific concerns. After that, most customers go about their day and come home to a clean house. We will contact you when we are done.
We include exterior gutter washing as part of a full house wash. The exterior faces of gutters develop black streaks over time from oxidation and algae - this is called tiger striping, and it requires a specific cleaning treatment to remove it. Interior gutter cleaning (removing leaves and debris from inside the gutter channel) is a separate service - ask us about it when you call.
We use biodegradable, plant-safe cleaning solutions that break down quickly after application. We do ask that pets be kept indoors or away from the work area during the wash, both for their safety and so we can work efficiently. For garden beds and landscaping near the home, we wet them down before and after washing to dilute any overspray, and we take care to direct runoff away from planted areas.
The improvement is visible immediately. As we rinse each section, the difference between washed and unwashed areas is dramatic. The final result is fully apparent once the exterior dries, which typically takes a couple of hours on a warm Boise day. Any residual biological staining that did not rinse away fully will continue to fade over the following two to three weeks as sunlight breaks it down.
Yes, we serve the full Boise metro area including Meridian, Eagle, Nampa, and Garden City. We are based in Boise and run routes throughout Ada and Canyon Counties regularly. Travel is not an issue - contact us and we will schedule a time that works for your neighborhood.
It can make a real difference. Mold spores, pollen, and algae accumulate on exterior surfaces, especially around windows, vents, and doors where air exchange happens. When those areas are disturbed by wind or door movement, spores and particles get re-introduced near entry points. Washing the exterior removes that biological load and can reduce the allergen burden around your home, particularly for people who are sensitive to mold or outdoor allergens.
Those black streaks are almost always caused by a type of algae called Gloeocapsa magma. It is airborne and settles on exterior surfaces, particularly in areas with moisture or shade. It feeds on organic matter in siding materials and roofing products, and it spreads over time. High-pressure washing alone cannot fully remove it because the outer layer is just a protective sheath - the cleaning solutions we use in soft washing actually kill and break down the organism at the root.
If there is furniture, planters, or other items directly against the house walls we will need to access, it helps to move those back a few feet before we arrive. We can move lightweight items ourselves during the job, but heavy furniture or large planters should be moved ahead of time if possible. We will also cover any items you want to protect from spray if needed.
Yes. We stand behind every job with a 100% satisfaction guarantee. If something was missed or you are not happy with an area of the wash, contact us and we will come back to address it at no additional charge. We have built our reputation in the Boise area on referrals and repeat customers, and we intend to keep it that way.
House washing is just one of the exterior cleaning services we provide throughout the Treasure Valley. If your driveway, sidewalks, or commercial property need attention, we handle those too.
Oil stains, tire marks, moss, and years of ground-in grime. We restore concrete and paved driveways to clean, consistent color using commercial-grade pressure washing equipment.
Learn About Driveway CleaningStorefronts, parking lots, walkways, loading docks, and building exteriors. We work around your business hours to keep your property looking professional and well-maintained.
Learn About Commercial Washing