Concrete Cleaning in Shelby Township

Flatwork on a township lot picks up its stains from two directions. From above, the canopy drops leaves, seeds and needles that hold moisture against the surface and leave tannin shadows where they sat, while the shaded edges grow the same green film that colors a north wall. From the street, winter salt and the oily gray haze thrown off the Van Dyke Ave and Hall Rd corridors ride in on tires and settle across the apron and the first ten feet of the drive. Commuters who sit on Auburn Rd and Schoenherr Rd every morning track that film onto their own concrete from November through March.

The cleaning is done with a surface cleaner rather than a wand. Its spinning bar holds a fixed distance off the slab and overlaps each pass, which is how a long driveway comes out one even color instead of striped. Pressure is matched to what is under it: full on sound broom-finished concrete, reduced on exposed aggregate where a thin cement paste is all that holds the stones, and lower still on any slab already flaking. A pre-treatment goes down first so the growth in the pores dies instead of getting shaved, and rust arcs, oil shadows and tire marks each get their own product afterward.

Concrete and driveway cleaning starts at $149, with the number following square footage and how deep the staining runs. Shelby Township is on municipal Lake Huron water township-wide, so sprinkler overspray here tends to leave a light mineral haze rather than deep orange staining, and most of the rust we find traces to a steel planter, a fertilizer spill or a downspout strap. Clean concrete is also the only surface a sealer will bond to, which is why cleaning is step one whenever sealing is on the table.

Stripes, Etching and a Wand Held Too Close

The wand used as the main tool. Held close, a narrow tip cuts into the cement paste, and once it has etched a line that mark is permanent. What follows is a driveway in stripes, each pass lighter or darker than its neighbor and most visible in low October sun. On exposed aggregate the damage is worse, because the paste holding the stones is thin and the pressure loosens them into a scatter of pebbles. The second mistake is skipping the pre-treatment, which leaves growth alive in the pores to darken again by midsummer.

Timing It Right

April is the busiest month, once the salt and sand have washed off the corridors and before fresh mulch goes down. Late September is the other common window, after the summer cookouts and before the leaves start staining. Concrete cleans any time the slab is above freezing and will drain, though a driveway cleaned in November is worth doing only if sealing can wait until spring.