Nearly every house between Ustick and Linder in Lochsa Falls went up in the mid-2000s with the same envelope: vinyl lap siding, a stone or brick wainscot across the front elevation, and stucco pop-outs framing the entry. Those three surfaces stain in three different ways here, and the irrigation hits all of them.
Walk this subdivision and the pattern is obvious. Mid-2000s production builders wrapped these homes in vinyl lap siding, usually a light tan, sage, or clay, then dressed the front with a cultured-stone or brick wainscot two to four feet up from grade, plus a stucco or foam-trim pop-out around the entry and garage. That mix matters for washing, because vinyl, stucco, and stone all hold dirt differently and none of them want pressure. Vinyl has horizontal lap edges that catch a shelf of dust on every course. Stucco and the foam trim are porous and grab algae. Cultured stone wicks water and shows mineral badly. One pressure setting for all three is how siding gets streaked, so we wash the whole elevation chemically at low pressure and let the soap do the work.
This is the stain we get called about most in Lochsa Falls. The neighborhood sits on Nampa and Meridian Irrigation District pressurized water, which is untreated Boise River canal water carrying real silt and mineral. On these compact tract lots the heads sit close to the foundation, so April through mid-October every cycle throws that water onto the wainscot and the first three or four courses of vinyl. It dries into a chalky tan-to-white band that follows the throw arc, heaviest on whatever corner the head over-sprays. Rain does not remove it and neither does a garden hose, because it is deposited mineral, not loose dirt. It comes off with a detergent left to dwell and, on stone, some hand agitation. If the head is still aimed at the wall, it will be back by August.
The mid-2000s trees in Lochsa Falls have twenty years of growth on them now, and the shade they throw onto north and east elevations keeps those walls damp long past sunrise. That is exactly what algae wants. On vinyl it reads as a dull green-gray haze that people mistake for faded siding until we wash a test patch and the color jumps back. On stucco pop-outs and under soffits it goes darker and blotchy. It also loves the shaded side of the wainscot mortar. Algae is a living organism, so the fix is chemical, not mechanical. A soft-wash mix kills it at the root and it rinses off. Blasting it with pressure only removes the surface layer, drives water behind the siding, and it regrows in one season.
The west and south elevations in this neighborhood take full Treasure Valley sun with almost no shade, and twenty-year-old vinyl responds by oxidizing. Run your hand down the wall and if you come away with a white powder on your palm, that is the pigment itself breaking down at the surface. Washing removes the loose chalk and the dirt sitting on top of it, so the wall reads cleaner and more even, but the underlying fade is gone permanently. No detergent and no pressure restores it. The only real repair is a vinyl-safe restorer coating or replacement, neither of which we sell. We will tell you that before we quote rather than after you have paid, and if a south wall is that far gone we will say the money is better spent on the elevations that will actually respond.
Soft washing means low pressure and the right detergent, dwelled long enough to break down algae and irrigation mineral, then rinsed. We work top down, cover plantings and the sprinkler heads, and keep water off the pressurized-irrigation valve boxes and outlets. House washing is $0.18 per square foot and it is safe on vinyl, stucco, brick, cultured stone, and cedar. Note that window glass is a separate service, and it should be, because we clean glass with 100 percent pure deionized water, not soap. Memberships are Monthly or Quarterly, no contract, with a 7-Day Rain Guarantee. Reflekt was founded in 2025 by Hunter Stevens and Ethan Seusy, is locally owned and fully insured, and holds 4.9 stars across 115+ Google reviews. Same-day and next-day slots are usually open. Call (208) 453-6760.
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It can, which is why we do not pressure wash siding. Vinyl on these mid-2000s Lochsa Falls homes is nailed with an intentional expansion gap, so a high-pressure wand can drive water up behind the courses and into the sheathing, and it can crack brittle sun-baked panels outright. Soft washing uses detergent at garden-hose pressure instead. The chemistry does the cleaning, and nothing gets forced behind the wall.
That is irrigation mineral. Lochsa Falls runs on the Nampa and Meridian district's untreated canal water, and on lots this size the sprinkler heads sit close enough to spray the wainscot and lower siding courses every cycle from April through mid-October. It dries into a hard chalky film that a hose only wets. We take it off with a detergent dwell and hand agitation on stone, but if the head still hits the wall it rebuilds within a season. Re-aiming that one head is worth more than any wash.
No, that one cleans up well. Green-gray haze on a shaded north or east elevation is algae, fed by the mature trees around these homes keeping the wall damp into the morning. A soft-wash mix kills it and it rinses away, usually with the original siding color returning noticeably brighter. Expect it back in one to three years depending on how much shade that wall gets.
Washing will make the wall look cleaner and more uniform, but it will not fix the fade. Chalk on your hand is oxidized pigment on twenty-year-old vinyl, common on the west and south elevations here that get full sun with no tree cover. The color loss is permanent. We will remove the loose chalk and everything sitting on it, and we will tell you honestly if a wall is too far gone to be worth washing.
Yes, and they are included in the square footage. The front stone or brick skirt and the stucco or foam trim around the entry and garage are both porous, so they hold algae and irrigation mineral harder than the vinyl above them. They get the same low pressure with a longer detergent dwell, plus hand work on mortar joints where mineral has set in. Both surfaces will be damaged by a pressure wand, so they never see one.
Late spring through early fall, once overnight temperatures stay above freezing, so detergent works properly and rinse water is not icing on the wall. If you are dealing mainly with the sprinkler band, waiting until after the irrigation district shuts water off in mid-October means it stays clean all winter. If it is north-wall algae, do it earlier so you get the whole season with a clean wall.
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