Most driveways here are original 1950s concrete: narrow, broom-finished, poured before anybody sealed anything. Seventy years under mature Bench street trees and the airport approach leaves tannin shadows, black leaf prints and an oily gray film that a homeowner's electric washer only lightens in stripes.
Seventy years of freeze-thaw and afternoon sun wears the cream off a broom finish, so the sand and pea gravel sit right at the surface. Put a zero-degree tip on that and you will cut visible wand tracks into it in one pass, and those tracks never go away. We run a flat surface cleaner at moderate pressure with a cleaning agent that does the work through dwell time instead of force, then rinse the panels edge to edge so nothing dries in a line. Control joints and the old expansion felt get a lighter touch, since blasting them out is how a joint starts holding water and heaving the next winter. On concrete this old, the goal is even, not white.
The stains here come from three places. Street trees, the big maples and elms that closed in over these blocks decades ago, drop leaves that sit wet on concrete through fall and print brown tannin shadows you can still read in April. The same trees run aphids all summer, and honeydew that lands on a patio turns to black sooty mold. Junipers and yews planted along the foundation drop needles that pile in the strip against the house and leave dark acidic staining under them. Then there is traffic: exhaust film off Vista, Overland and Broadway plus the fine particulate from the airport approach settles on the driveway and gets ground in by tires, which is why the wheel tracks are always darker than the rest of the slab.
Two things on Bench driveways do not come out with pressure, and you should hear that before you pay for it. The first is irrigation rust. If your sprinklers run on canal water instead of city water, the iron in it dries into orange fan-shaped stains wherever a head throws onto concrete. Pressure will not move it. It is a chemical stain and it takes an oxalic rust treatment, which we do as a separate step and which usually clears it if the head gets adjusted afterward. The second is old motor oil in an unsealed slab. Seventy-year-old concrete drinks it. A hot degreaser with real dwell time will lighten a parking spot noticeably, but a stain that has been feeding since the Nixon administration is in the aggregate, not on it, and we will tell you that up front rather than after.
Layout on these blocks changes how the job runs. A lot of Depot Bench houses have a detached garage at the back with a long ribbon driveway or an alley apron feeding it, so the square footage is mostly a narrow strip, and the far end usually meets gravel or dirt that washes back onto what we just cleaned. We start at the garage and work toward the street so the dirty water runs downhill and out, not across finished concrete. Up on the Crescent Rim side the grade is real and runoff heads for the rim, so we control where it goes rather than letting it sheet into a neighbor's beds. Junipers and lawn edges get pre-wet and rinsed after. We pull water from an outside spigot, so leave the hose bib clear and tell us if it is shut off at a basement valve.
Pressure washing is $0.20 per square foot for driveways, patios and walkways. Measure length times width and you have your number within a few dollars: a 12-by-45 ribbon driveway is about 540 square feet, so $108, and most people add the front walk and a back patio while we are there. House washing is $0.18 per square foot and is soft-wash, which is the right pressure for painted lap siding and for the older mortar joints on the brick courses around here. Gutters start at $199. Memberships run monthly or quarterly with no contract. Same-day and next-day slots open most weeks. Reflekt is locally owned and fully insured, started in 2025 by Hunter Stevens and Ethan Seusy, with 4.9 stars across 115+ Google reviews. Call (208) 453-6760.
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Measure it. Length times width times $0.20 is the price. A typical single-wide ribbon driveway on these blocks runs 500 to 700 square feet, so $100 to $140. If that is the whole job, we will usually suggest adding the front walk, the back patio or the porch steps so the trip pencils out, and it is common here to pair concrete with a window cleaning on the same visit.
Not the way we run it. The risk on 1950s concrete is not the water, it is the tip and the distance. A narrow tip held close will stripe-etch a worn surface and open up any spot that is already pitting or popping out. We use a rotating surface cleaner at moderate pressure and let the cleaner do the work. If your slab has spalled areas, we will show you before we start, because washing makes them more visible, not less.
Usually, but not with pressure. That is iron out of irrigation water, and it is a chemical stain sitting in the pores. It needs an oxalic-acid rust treatment, applied and rinsed, which we do as a separate step from the wash. Old, heavy staining sometimes ghosts a shade lighter instead of disappearing. And it comes back every season unless that sprinkler head gets turned off the concrete, so adjust the head while the walk is clean.
Yes, on low pressure. Brick from this era around Boise sits in soft lime-heavy mortar, and a turbo tip will chew joints out of it in seconds. You end up with sand on the ground and a repointing bill. Masonry, painted siding and porch columns get soft-washed: low pressure, a cleaning solution, dwell time, gentle rinse. Only flatwork like driveways, patios and walks gets real pressure.
Once a year is plenty for most Depot Bench homes, and timing matters more than frequency. Spring, after the leaf mold and tannin from last fall has set, is the visible win. If you have heavy street-tree cover, late fall after the drop is finished works too, because leaves left sitting wet all winter are what print the stains in the first place. Twice a year only makes sense on a patio under a maple that runs aphids.
The rain guarantee is a window-cleaning promise, and we will be straight with you: rain does not undo a pressure wash. Clean concrete rinsing in the rain is fine, and a shower the next day changes nothing. What does matter is scheduling. We do not wash flatwork when it is near freezing, because water on shaded 1950s concrete overnight can ice and make a slick driveway. If a cold snap lands on your date, we move it.
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