Driveway, Patio, and Walkway Pressure Washing: The Real Cost Per Square Foot

The math, using real driveway dimensions

The rate is $0.20 per square foot, and that is the entire formula: length times width times twenty cents. A standard two-car driveway at 20 by 24 feet is 480 square feet, which is $96. A 3-by-40-foot front walk adds 120 square feet, another $24. A 12-by-16 back patio is 192 square feet, about $38. Do all three together and you are at 792 square feet, roughly $158. Extras move it fast: an RV pad at 20 by 40 is 800 square feet on its own, $160. Small standalone jobs usually get booked alongside gutters, a house wash, or a window clean rather than as their own trip, so ask how that is handled when you call. What you should not accept from any company is a flat number with no unit behind it. Without a rate and a measured area, you have nothing to compare.

Measure your own concrete in five minutes

Grab a tape measure or pace it off; a normal adult stride is close to three feet. Measure the driveway at its widest and longest, including the apron out to the street if you want that cleaned. Break irregular shapes into rectangles and add them: a driveway with a side parking pad is two rectangles, not one guess. Walkways are usually 3 or 4 feet wide, so length times 4 is close enough. Patios are straightforward unless there is a fire pit or planter cut in, and nobody deducts for that. Write down each area separately, because you may want the driveway done and the side yard skipped. Then decide what you actually care about: the oil-stained middle strip, the green shaded north side, or all of it. A crew that knows your priority before arriving spends the time where it matters instead of splitting it evenly across concrete you never look at.

What oil stains really do, and what comes out

Oil is not dirt sitting on top of the slab. Concrete is porous, and motor oil, transmission fluid, and gear oil soak down into those pores, sometimes a quarter inch deep. Pressure alone lifts the surface film and leaves the stain underneath, which is why a driveway can come out bright and still show a gray ghost where the car parks. Getting the rest requires a degreaser with real dwell time to pull oil back to the surface, hot water when it is available, and often more than one pass. Honest expectations: a spill from the last few weeks usually disappears. A stain from last summer usually lightens a lot. A five-year-old spot under a truck that leaks every night becomes a faint shadow, not clean concrete, and any company promising otherwise is setting you up to be disappointed. If it happens today, cover it in cat litter or oil-dry, leave it overnight, sweep it, then wash.

Rust, fertilizer orange, and stains pressure cannot touch

Rust is a chemical stain, not a deposit, and no amount of pressure will move it. In the Treasure Valley most of it comes from three places. Irrigation and well water carries iron, and a sprinkler head throwing across the driveway paints an orange arc that gets darker every season. Iron-based lawn fertilizer flung onto concrete by a broadcast spreader leaves orange freckles within hours of the next watering. And metal itself, meaning furniture feet, a dropped tool, or rebar sitting too close to the surface, bleeds rust from a fixed point. The first two respond well to an oxalic-acid rust remover, applied, dwelled, and rinsed thoroughly away from plants and metal fixtures. Rust bleeding from rebar inside the slab will come back, because the source is still in there. Fix the cause where you can: adjust the sprinkler head, sweep fertilizer off concrete before you water, and pick up the metal chair legs.

When pressure washing damages concrete instead of cleaning it

Concrete has a thin, dense top layer, and blasting it off is a real risk. Held too close, a wand carves visible stripes into the surface, and once you can see them at a low angle they are permanent. That is why even work is done with a rotary surface cleaner and the wand is saved for edges and corners. Concrete that is already spalling from freeze-thaw or winter de-icer will lose more flakes under any washer, and if yours is flaking, the honest advice is that it needs a concrete contractor, not a cleaning. Pavers lose their joint sand and need it swept back in afterward. Stamped, colored, or sealed concrete needs lower pressure or the coating comes up in patches. Old mortar between brick pavers can be blown out entirely. Ask any company what pressure and what tool they plan to use on your specific surface, and be skeptical of anyone who answers the same way for every job.

Comparing quotes, and when Reflekt is not the right call

Ask five things of anybody, us included. One: what is your rate per square foot and what area did you measure? Two: surface cleaner or wand only? Three: is stain treatment included in that number or billed separately after they see it? Four: will proof of insurance arrive without a follow-up call? Five: what on my concrete do you expect will not come out? A company that names a limit before the job is more trustworthy than one promising everything. Where Reflekt is behind: we started in April 2025, so long-established valley companies have more years and a deeper review file than our 115+ Google reviews at 4.9 stars. We also do not seal, resurface, or repair concrete. If your slab is cracked, flaking, or you want it sealed afterward, hire a concrete contractor for that part. If you want a published per-foot rate and a fast slot, we fit.

How Reflekt prices and schedules the work

Pressure washing is $0.20 per square foot on driveways, patios, walkways, and pads. House washing is separate at $0.18 per square foot, done as a soft wash, because siding and pressure are a bad combination. One clarification: the pure deionized water and no-soap method described elsewhere on this site is our window process, and it is the right approach for glass. Concrete is different work. Stains living inside the pores need a cleaning agent and dwell time, not just more pressure. If you are bundling, windows start at $199 by pane count, gutters start at $199, and memberships run monthly or quarterly with no contract. Same-day and next-day slots open most weeks. Call (208) 453-6760 with your measurements and you will get a real number on the phone. Locally owned out of Meridian, fully insured, founded by Hunter Stevens and Ethan Seusy in April 2025.