Concrete Cleaning
in Charleston, SC

Concrete in the Charleston area takes more abuse than in almost any other climate in the country. Between year-round humidity that lets mold and algae grow continuously, red-clay subsoil that pushes iron stains up through the slab, live oak tannin drops that bond to the surface within days, and the occasional freeze-thaw cycle that expands every crack, our concrete surfaces need more help than a quick rinse.

Concrete surfaces (patios, pool decks, walkways, sidewalks, parking pads) handle pressure washing (and power washing, which is the same service performed with heated water) better than almost any other exterior material. The density and hardness of poured concrete mean we can use full-pressure surface cleaning without the risk of damage that comes with siding or roofing. For driveways specifically (the largest single piece of concrete on most properties and the most exposed to oil staining and street-side mildew) we maintain a separate driveway cleaning service with its own dedicated process for curbside detail and HOA covenant timing.

Why Surface Cleaner Beats Wand Washing Every Time

You've probably seen patios and pool decks that came out looking like a zebra: uneven strips of clean and dirty running parallel to each other. That's what happens when someone tries to clean concrete with a handheld wand. Pressure drops off rapidly with distance from the surface, so a few inches of variation produces visible striping that won't come out without a second full cleaning. The only reliable way to clean concrete evenly is a dedicated surface cleaner: a rotating spinner bar enclosed in a shroud that maintains consistent pressure across every square inch.

Every concrete cleaning we do starts with a surface cleaner pass. After that we detail edges, corners, and transitions with a wand. Then we do a final rinse. A proper concrete cleaning takes longer than most homeowners expect. That's the difference between a rushed handyman job and a real clean.

Tannin marks deserve a specific note. If your concrete pool deck or patio sits next to an IPE or other tropical hardwood deck, you've probably seen brown streaks running off the wood onto the concrete after every heavy rain. That's tannin bleed: natural oils from the hardwood. We can remove existing tannin staining as part of a concrete cleaning visit, and we coordinate with our IPE deck cleaning service to prevent it on the next round by tarping the concrete during deck washing.

Paver and Stamped Concrete Requires a Completely Different Approach

If you have concrete pavers, brick pavers, or stamped concrete, high pressure is not your friend. Paver installations rely on polymeric sand packed into the joints to lock the pavers in place and prevent weed growth. Hit those joints with 3,500 PSI and the sand blows straight out. Within months you'll have pavers shifting, tripping hazards developing, and weeds establishing in the open joints.

For pavers we use lower pressure combined with surfactant chemistry, and we can re-sand joints after cleaning if needed. Stamped concrete is even more delicate: high pressure will actively erode the decorative finish and strip the color seal. We treat both with the care they require.

What to Do About Oil Stains, Rust, and Tannin

Rust stains from irrigation systems, fertilizer, or iron in the soil take a dedicated rust remover applied separately. Tannin stains from live oak and pecan drops need an oxalic acid treatment. We handle all three as add-ons or as part of a full concrete clean. Call for pricing.