Potomac · Bethesda · Rockville, MD

Concrete
& hardscaping,
built to outlast
the season.

Kempf Construction Cleanup is a Maryland-based concrete & hardscaping contractor specializing in driveways, patios, retaining walls, and stamped concrete — engineered for Montgomery County’s clay soils and freeze-thaw winters.

Established 1998
Projects 600+
Licensed & Insured MHIC available on Request
Warranty 5 Year Workmanship
What we build

A complete
concrete & hardscape
portfolio.

From the first form board to the final saw cut, every project is handled in-house. We don’t farm out the hard parts — foundations, finish work, and drainage are all done by our own Maryland-based crews.

01 / Driveways

Concrete & paver driveways

Reinforced 4′-thick slabs, broom or exposed-aggregate finishes, and proper expansion control for the long drive up.

BroomExposed AggregatePavers
02 / Patios

Stamped & flagstone patios

Stamped concrete, travertine, bluestone, and clay paver patios — sealed and detailed to look hand-laid for decades.

StampedFlagstoneBluestone
03 / Walls

Retaining & garden walls

Segmental, poured, and natural stone retaining walls engineered with proper backfill and drainage for Maryland clay.

SegmentalPouredNatural Stone
04 / Walkways & Steps

Front entries, paths & steps

The first thing a guest touches. We build entries and walkways with the same precision as the architecture they lead to — level treads, even risers, hand-cut transitions.

Bluestone TreadsConcretePaver PathsADA Slope
05 / Outdoor Living

Outdoor kitchens, fire features & pool decks

Built-in grills, gas fire pits, pizza ovens and pool decks designed and installed alongside the hardscape — one crew, one warranty, one finished look.

Fire PitsPool DecksKitchensPergolas
How we work

From sketch
to saw-cut.

A four-step process designed to keep your project on schedule, on budget, and visible to you at every stage. No surprises, no subcontractor shuffles.

01 — CONSULT

On-site walk & scope

We meet you on the property, talk through use, drainage, and finish goals, and put a clear written scope in your inbox within 72 hours.

02 — DESIGN

Layout & materials

Scaled drawings, material samples on site, and a transparent line-item proposal. You see every option before you sign.

03 — BUILD

Forms, pour & finish

Our crew handles excavation, sub-base, forms, reinforcement, pour and finish. One foreman from start to final cut.

04 — CLEAN

Site cleanup & sealing

The “cleanup” in our name is literal: we leave the site immaculate, sealed where appropriate, and walk you through care.

Service area

Local to
Montgomery County, MD.

We work exclusively within a 25-mile radius of Potomac — so we know which subdivisions have heaving clay, which streets have township permits, and which inspectors prefer 4′′ vs. 5′′ slabs.

  • Potomac
  • Bethesda
  • Rockville
  • Chevy Chase
  • North Potomac
  • Kensington
  • Cabin John
  • Gaithersburg
From the neighborhood

Built once.
Praised twice.

Most of our work comes from word of mouth — one neighbor walking another down their new driveway. Here’s what they’ve told us.

★★★★★

“Six months in, three winters of brine, and the driveway looks like the day it was finished. They poured it like it was their own house.”

DM
D. Martin
Potomac, Avenel
★★★★★

“The retaining wall along the back grade was a real engineering problem. Their foreman walked me through drainage twice. No upsell — just the right answer.”

SK
S. Kapur
Bethesda
★★★★★

“Two flagstone patios, a fire pit, a paver path. One crew, one timeline, one bill. The site was cleaner at the end of each day than when they arrived.”

LR
L. Rosenberg
Rockville
Free, no-pressure estimate

Have a project
in mind? Let’s walk it.

Tell us what you’re building. We’ll come measure, talk options, and have a written quote in your inbox within three days.