Siding in Big Sky carries algae on the shaded walls and an irrigation band along the bottom three feet. It sits in Boise between Cloverdale and Five Mile south of McMillan in 83713, and it is platted 1970–1973 across 3 phases, back when this was farm ground with a few houses on it. At roughly 120 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. Across about 120 acres the pattern barely varies here.
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. That holds across 83713 generally, not just on this plat.
Boise glass carries something the rest of the valley does not: foothills grit. Decomposed granite off the slope is sharp and fine, it travels on the afternoon downslope wind, and in winter the valley inversion holds everything else down at ground level with it. That is the honest reason we push timing as hard as we push method: doing this work at the right point in the Boise season is worth more than doing it more often at the wrong one. Big Sky routes off McMillan, so getting here is not a special trip.
Bundling with window cleaning saves a trip charge and gets the sequence right. We will tell you honestly if you do not need the second service yet — a bundle you do not need is not a saving.
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. Reflekt has been operating since April 2025, which is a shorter history than some of the companies you may be comparing us against. We would rather you knew that up front.
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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 — Big Sky is on our regular Boise routing in 83713. We already run N Columbine St, N Tumbleweed Pl and N Tattenham Way. 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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