Siding in Brookhollow Estates carries algae on the shaded walls and an irrigation band along the bottom three feet. It sits in Boise between Cloverdale and Five Mile, just south of Franklin in 83709, and it is older than most of the city around it — recorded 1973–1980 across 6 phases. At roughly 125 acres it is one of the larger communities in the city, and that scale is part of the quote.
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Exteriors here collect three separate things. On north and east elevations, where sun never fully dries the wall, you get algae and mildew as a green-black film. Along the bottom three feet you get mud splash and irrigation overspray staining — the same mineral that marks the glass marks the siding, and on light vinyl it reads as a permanent dingy band. Everywhere else you get decomposed granite off the foothills, plus the winter inversion that traps particulate at ground level for weeks at a time. Each needs different treatment, which is why one pass with a pressure wand does a poor job on all three. With 6 phases recorded, the older streets show it further along than the newest ones, and we price accordingly.
House washing is a chemical process, not a force one. We apply a surfactant and sodium-hypochlorite blend at low pressure, give it dwell time to kill the growth at the root, and rinse. High pressure drives water up behind lap joints and into the wall assembly, strips the chalking layer off aging vinyl, and on stucco and manufactured stone it will take the finish off outright. Soft washing kills the algae rather than knocking the top off it, which is why it stays gone longer. We pre-wet and rinse every bed on the wash path. On Brookhollow Estates homes of this vintage we check condition before method, every time.
Two things drive this in Boise: untreated irrigation water off the canal system, and decomposed granite off the foothills, plus the winter inversion that traps particulate at ground level for weeks at a time. Separately each is manageable. Together they bond, and that is the condition we are actually treating on a Brookhollow Estates job. If you are on S Colfax St or one of the streets off it, we are likely already working nearby.
Most Brookhollow Estates customers book this alongside window cleaning. Partly that is price, partly sequence — washing walls after cleaning glass puts dirty water back on clean panes, and hanging lights before clearing gutters means working around your own strands in January.
Soft washing removes organic growth and dirt. It will not fix oxidised vinyl, it will not pull efflorescence out of masonry, and it does not repaint anything. Saying this plainly costs us the occasional booking and saves everybody the version where you find out on the day.
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Not at soft-wash pressure. The mix is diluted, beds are pre-wet and rinsed, and we never drive water behind lap joints. We will point out anything already failing before we wash it.
Yes — Brookhollow Estates is on our regular Boise routing in 83709. We already run S Queens Guard Way, W Bridgetower Dr and S Colfax St. Locally owned, fully insured, rated 4.9 stars across 125+ Google reviews. Call (208) 453-6760 or get a quote online.
$0.18/sq ft soft-wash. The final number depends on the property, and there is no contract and no membership requirement. Booking it alongside another service on the same visit is the cheapest way to do it.
Every one to two years for most homes. North-facing walls and anything shaded by a fence or neighbouring house grow back faster and may want annual attention.
The wash rinses them but it is not a window cleaning — soft-wash mix leaves residue on glass. Book them together and we do the glass after the walls, in that order.
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