Concrete & Sidewalk Cleaning

Driveways, walkways, and concrete surfaces take on constant weather, traffic, staining, and organic growth. We clean them with professional equipment and surface-specific methods designed to improve appearance and remove stubborn buildup.

Clean concrete sidewalk leading to a home

After: exposed-aggregate concrete pad cleaned

See More Transformations

Some of the hardest-working surfaces on your property are under your feet.

Concrete is exposed to almost everything: vehicles, foot traffic, rain, dirt, pollen, oil, rust, runoff, and the damp conditions that encourage algae and organic growth.

Because concrete is porous, some staining and buildup can settle below the immediate surface instead of rinsing away easily.

Cleaning it properly means understanding both the concrete and the problem. General dirt, organic growth, oil, rust, and mineral deposits don’t necessarily need the same treatment. Keystone evaluates what’s present first, then chooses the equipment, pressure, chemistry, and process accordingly.

The goal is a cleaner, more even surface without treating every slab exactly the same.

What we address

What builds up on concrete.

Oil & Rust Staining

Automotive fluids, rust, and other stains that may require targeted treatment beyond routine surface cleaning.

Algae & Organic Growth

Green and dark buildup that commonly develops across shaded or moisture-prone concrete.

Efflorescence & Mineral Buildup

White or chalky deposits that can require surface-specific treatment rather than additional pressure.

Dirt, Gum & Traffic Film

Ground-in grime, rubber, pollen, gum, and everyday buildup across driveways, sidewalks, and walkways.

“They did what they said, looked great, arrived and completed on time. Absolutely no complaints.”

— Sharon L.

Method

Surface cleaning, not just spraying.

Concrete may be durable, but the right approach still depends on the material and condition.

We use professional surface-cleaning equipment and appropriate pressure to clean larger flat surfaces evenly, then address specific stains or problem areas with chemistry and targeted treatments when needed.

Older concrete, decorative finishes, pavers, and other specialty surfaces may call for a different approach than a standard driveway. That’s why we assess the surface first instead of assuming every hardscape should be cleaned the same way.

Targeted stain treatment

Some stains need more than routine concrete cleaning.

Rust, oil, mineral deposits, oxidation, and other stubborn staining may require targeted chemistry and additional treatment after the surrounding surface has been cleaned.

Results depend on the type of stain, how long it has been present, how deeply it has penetrated, and the condition of the surface. We identify what we’re dealing with first, then recommend the treatment that makes sense and set realistic expectations about what can be achieved.

Often done in the same visit

House WashingCarry the clean from the driveway and walkways up to the exterior of your home.Learn More

Deck & Patio CleaningCare for the outdoor living surfaces connected to your home and hardscape.Learn More

Concrete cleaning questions, answered honestly.

Can pressure washing damage concrete?

Yes. Too much pressure or improper technique can damage any exterior surface, including concrete. We match the equipment, pressure, and process to the material and condition.

Can you remove oil and rust stains completely?

Some respond extremely well to targeted treatment, while others may remain depending on how deeply they have penetrated and how long they’ve been present. We’ll give you a realistic assessment rather than promising every stain will disappear.

Does this include driveways, sidewalks, and walkways?

Yes. We clean residential driveways, sidewalks, walkways, entry areas, and other appropriate concrete surfaces. If you're looking to clean a patio or outdoor living area, see our Deck & Patio Cleaning service.

How often should concrete be cleaned?

It depends on shade, moisture, surrounding vegetation, traffic, staining, and environmental exposure. We can recommend a maintenance schedule based on the condition of your property.

Proudly serving Central Pennsylvania.

Serving York, Harrisburg, Mechanicsburg, Camp Hill, Lancaster, and communities throughout Central and South Central Pennsylvania.

For larger commercial, industrial, restoration, and fleet projects, we're happy to travel beyond our primary service area. Not sure if we cover your location? Just ask.

Ready to clean up your concrete?

Tell us what’s growing, staining, or building up on the surface, and we’ll follow up with honest guidance and a clear quote.