The blocks around Indian Creek Plaza run older than most of Caldwell: painted lap siding and brick from the pre-war years, with aluminum and vinyl added later onto the same walls. Each one stains differently. Sprinkler crust low, algae on the north face, chalk on the sun side.
Within a few blocks of Indian Creek Plaza you get pre-war homes in painted wood lap siding, brick bungalows built with soft lime mortar, a run of 1960s and 70s aluminum, stucco on the buildings closer to the commercial core, and vinyl that went on during a re-side sometime in the last thirty years. Often on the same street. Sometimes on the same house, where an addition got a different material than the original wall. That matters because each surface takes a different pressure and a different mix. Hundred-year-old paint will lift if you hit it the way you'd hit vinyl, and old brick sheds mortar if a tip gets too close to the joint. We read the wall before the pump comes on, and we mix down rather than up.
The bottom two to three feet of siding downtown tells you what your sprinklers have been doing. Most of these older lots are on Pioneer Irrigation District water, which means canal water is hitting the wall, not treated city water. It carries silt, iron and lime, and it dries into a hard band right where the spray arc lands. On painted lap siding it reads as a dull tan crust. On white vinyl it shows up as an orange-brown stripe you can see from the sidewalk. A soft wash lifts the organic film and the loose sediment, and on most houses that band comes back close to original. Where a head has been throwing at the same spot for years, some of the mineral has etched into the paint or the vinyl and part of that shadow stays.
Mature trees are the real difference between downtown and a subdivision on the edge of town. The older residential streets off 7th and Kimball have full canopy, and that shade keeps the north and northeast walls damp long after the south side has dried out. That's where the black-green film shows up. It's algae and mildew living on the moisture, not dirt, which is why scrubbing or blasting it is a waste of a Saturday — you knock the top layer off and it grows back within a season. A proper soft wash uses a cleaning solution that kills the growth at the root instead of just rinsing the color off it. On a shaded downtown lot that's the difference between a wall that stays clean through the next spring and one that greens up again by March.
South and west walls have the opposite problem. Decades of Idaho sun break down the binder in old paint and in older aluminum and vinyl siding, and the pigment turns to a fine powder on the surface. Run your hand down it and your palm comes away white. Washing removes the chalk. What washing cannot do is put the color back, so on a badly oxidized wall the finished result can look lighter or blotchier than the shaded sides — you're finally seeing the actual faded paint instead of a uniform layer of dust sitting over it. That's the answer nobody wants: on a heavily chalked sun wall, a house wash is prep for paint, not a substitute for paint. We say it at the walkthrough so it isn't a surprise when the rinse water runs clear.
House washing is $0.18 per square foot, soft wash, safe on every siding type on these blocks. Soft wash means the cleaning solution does the work and the pressure only rinses — that's the only way to clean 1920s paint or original brick without leaving a mark on it. Reflekt is locally owned and fully insured, started in 2025 by Hunter Stevens and Ethan Seusy, with 115+ Google reviews at 4.9 stars. Monthly and Quarterly memberships are available with no contract if you want the shaded north wall kept ahead of the algae, and every wash carries our 7-Day Rain Guarantee. Same-day and next-day slots open up regularly. Call (208) 453-6760 and tell us what your siding is. If you're not sure, we'll sort it out on the walkthrough.
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Not at the right pressure. We soft wash, meaning the solution breaks down the growth and the rinse is low-pressure, closer to a strong garden hose than a pressure washer. On pre-war painted lap siding and brick with soft lime mortar, that's the only safe approach. High-pressure tips will strip chalked paint and blow mortar out of a joint. We don't put them on these houses.
That's your sprinklers. Irrigation water on these older lots carries iron, lime and silt, and it bakes into a band right where the spray arc hits the wall. Most of it comes off with a soft wash. If a head has been hitting the same three feet of siding for years, some mineral has etched in and won't fully release. We'll tell you which one you have before we quote it.
Usually algae and mildew, not structural mold. Canopy shade on the older downtown streets keeps that wall damp, and growth follows the moisture. Pressure alone knocks the visible layer off and it returns within a few months. Our solution kills it at the root so the wall stays clean into the next season. If we see growth tracking a leak or a gutter overflow, we'll point out the actual source.
Yes, we can wash the chalk off. But chalking is the paint or the siding finish itself breaking down in the sun, not dirt sitting on top of it. Once the powder is gone you're looking at the true faded color, which can read lighter or patchier than the shaded walls. On a badly chalked south or west wall, a wash is good prep before painting rather than a fix on its own.
We measure the wall area we're actually washing, not your home's interior floor plan. A single-story bungalow off Blaine or Kimball prices out very differently from a two-story with a full brick face. We'll give you the number before we start, and if part of a wall shouldn't be washed — failing paint, an open soffit, damaged trim — we'll say so instead of washing it anyway.
Most downtown homes do fine on a wash every 18 to 24 months, with the shaded north wall being the part that calls for it sooner. If your siding is only dusty and rinses clean with a hose, you don't need us yet. Book when you see the green film on the shaded side or a hard band forming along the sprinkler line — those don't rinse off and they get worse if you wait.
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