Most people assume their concrete has just aged. Then we run a test strip across it, and the difference between the clean line and everything around it is usually a shock.
Your driveway is not grey. It is dirty.
📞 Call or Text (804) 571-7226 — most quotes go out the same day.
Your concrete is not grey, it is dirty
Concrete is porous. Every pore holds moisture, and in Richmond’s climate that means every pore eventually holds something living — algae, mould and mildew, spread evenly enough across the whole slab that it reads as colour rather than as growth. Layer on tyre rubber, engine drips, leaf tannin, pollen and clay and the surface darkens a shade a year, slowly enough that nobody notices.
That is why the test strip is so persuasive. One pass with a surface cleaner and the original concrete appears, several shades lighter, and suddenly the rest of the driveway looks like what it actually is.
What we clean
Driveways · walkways and paths · front steps · patios · pool decks and surrounds · curbs and aprons · garage floors · retaining walls · basement stairwells and areaways · brick and paver walkways
The winter salt line
This is the Richmond-specific problem the national pricing pages never mention.
From December through March, VDOT and the counties treat the roads with salt brine and cinder grit. It gets tracked up your driveway on four tyres, every trip, all winter. Then it sits — through the freeze-thaw cycles that make it worst, and into a spring where nobody is thinking about the driveway yet.
Salt residue leaves a pale, patchy crust, usually heaviest in the first ten feet from the street and around where you park. Worse, chloride works into the pores and accelerates surface scaling: that fine pitting and flaking that makes older Richmond driveways look tired well before they are structurally done.
It does not respond well to pressure alone. Salt needs to be chemically broken down and flushed, which means a pre-treatment and dwell time before the surface cleaner ever touches it. Spring is the right time to deal with it.
Piedmont clay staining
Richmond sits on iron-rich orange clay, and it gets everywhere: splashed onto the apron in hard storms, tracked from garden beds, washed down from a slope after heavy rain.
Clay is a pigment problem, not a dirt problem. Hit it with pressure and you smear it deeper into the pores — which is why so many DIY attempts leave an orange ghost. It needs an acidic or chelating pre-treatment to break the iron bond, then flushing. Fresh staining usually comes out completely. Staining baked in over several summers often lightens dramatically rather than disappearing, and we will set that expectation at the quote.
Oil, rust, tyre marks and battery acid — the honest version
- Fresh oil and transmission drips — usually come out fully with a degreaser and dwell time.
- Old, deeply soaked oil — lightens substantially. A shadow often remains. Anyone promising total removal from a ten-year-old stain is guessing.
- Rust from patio furniture, rebar or fertiliser — needs specialist chemistry, not pressure. Often removes well, sometimes leaves a faint halo.
- Tyre marks and scuffing — generally clean up well.
- Battery acid and paint — acid etches the concrete surface itself; that is damage, not dirt, and it does not wash out.
We would rather lose a job by being straight about this than get a call afterward about a stain we implied would vanish.
Why a surface cleaner beats a wand
Cleaning a driveway with a handheld wand is how you get a zebra-striped driveway: alternating light and dark bands where passes overlapped or did not. Once it is there, the only fix is doing the whole slab again properly.
A rotary surface cleaner runs two jets on a spinning bar inside a shrouded housing, at a fixed height and consistent overlap. The result is even edge to edge, with no striping and far less overspray onto siding and beds. Around the perimeter and in tight spots we finish by hand.
If you are comparing quotes, ask what they are cleaning with. It is the single best predictor of how the driveway will look afterward.
Should you seal it?
Sometimes. Sealing after cleaning slows staining, reduces water absorption and helps against freeze-thaw scaling — genuinely useful on Richmond’s winter cycle. It is worth it if your concrete is in decent shape, gets salt exposure, and you would rather clean it less often. It is not worth it if the surface is already scaling badly, since sealer over a failing surface just locks the problem in.
Common questions
What pressure do you use on concrete?
3,000 to 4,000 PSI through a surface cleaner for sound concrete. Older, scaling or decorative surfaces get less. Pavers and stamped concrete get considerably less.
Will it remove paint splatter?
Sometimes. Fresh latex often lifts; cured oil-based paint usually does not, at any pressure that leaves the concrete undamaged.
How long before I can park on it again?
Straight away for driving. If we have sealed it, keep off for 24 hours, longer in humid weather.
Are pavers and stamped concrete safe?
Yes, at reduced pressure. Pavers need care around joint sand — we will flag if yours needs re-sanding afterward.
How often should a Richmond driveway be cleaned?
Every two to three years for most. Annually if you are under heavy tree cover, park a work vehicle on it, or get significant salt exposure from a street-facing slope.
Ask us for a test strip. It takes thirty seconds and it is the most convincing thing we do. Call or text (804) 571-7226.