Fossil Creek is still building at Ten Mile and Deer Flat, so most of its concrete is inside its first few years. New concrete has two problems older slabs do not, and both are commonly misdiagnosed as dirt that needs blasting harder.
A chalky white haze on new concrete is efflorescence: soluble salts migrating out of the slab as it cures and crystallising on the surface. It looks like a stain and it is the concrete itself doing something normal. Blasting it at maximum pressure removes the bloom and some of the cement paste holding the surface together with it, which leaves a rougher, more porous slab that then soils faster and blooms again. It wants the correct treatment and moderate pressure, and repeat blooms in the first couple of years are expected rather than a failure.
Concrete continues gaining strength for a long time after it is poured, and the surface paste on a slab under a year old is genuinely more vulnerable than the same slab will be at five years. Hitting it with an aggressive nozzle can etch visible wand marks or open the surface into a sandy texture that never fully recovers. On Fossil Creek's newest streets we deliberately dial pressure down and let a surface cleaner and the right solution do the work, which is the opposite of what most people expect to hear about new concrete.
Alongside the efflorescence, first-years Fossil Creek driveways typically carry mortar droppings, texture overspray, paint spots and tyre marks from construction traffic, plus the fine cement slurry that gets tracked around a building site. Those come off, but they are separate problems from general soiling and some need spot treatment rather than a uniform pass. Getting them while the slab is still new is easier than waiting, because tyre rubber and oil work deeper into concrete pores over time.
The Ada County Highway District's rebuild of the Ten Mile and Deer Flat intersection at the subdivision's front door means months of open graded earth and stop-and-go traffic, which puts far more dust on nearby flatwork than a normal road would. Homes on the north and east edges get the most. It is temporary and it is a frequency consideration rather than a reason for a more aggressive method.
Pressure washing is $0.20 per square foot of actual area, and Fossil Creek lots from 0.103 to 0.298 acres carry conventional driveways and patios rather than large aprons, so the numbers are moderate. Pressure washing is for concrete, pavers and hard flatwork only. Siding is house washing, a soft wash at $0.18 per square foot, because high pressure on lap siding drives water behind the laps into a wall assembly that on a new build is still settling. We quote them separately.
Free, no-obligation quote — we'll call or text you with your price.
Get My Free QuoteStill wondering about something? Call or text us at (208) 453-6760.
Efflorescence: soluble salts migrating out of the slab as it cures and crystallising on the surface. It is the concrete doing something normal rather than a stain. Repeat blooms in the first couple of years are expected rather than a sign anything is wrong.
No. Maximum pressure removes the bloom along with some of the cement paste holding the surface together, leaving a rougher, more porous slab that soils faster and blooms again. It wants the correct treatment and moderate pressure instead.
The opposite at the surface. Concrete keeps gaining strength long after pouring, and the surface paste on a slab under a year old is genuinely more vulnerable. An aggressive nozzle can etch wand marks or open the surface into a sandy texture that never fully recovers.
Usually mortar droppings, texture overspray, paint spots, tyre marks from construction traffic and fine cement slurry tracked around the site. Some need spot treatment rather than a uniform pass, and they are easier to remove now than later, since rubber and oil work deeper into the pores over time.
Yes, especially on the north and east edges of Fossil Creek. Open graded earth and stop-and-go traffic put much more dust on nearby concrete than a normal road. It is temporary and a frequency consideration rather than a reason for a harsher method.
Pressure washing is $0.20 per square foot of actual flatwork area and does not include siding. Siding is a soft wash at $0.18 per square foot, because high pressure on lap siding drives water behind the laps into a wall assembly that on a new build is still settling.
Free, no-obligation quote. Next-day slots available.
Get My Free Quote