We recently hired Alpha Le Concrete to install a stamped concrete border around our entire barn, including under the porch overhang. From the first time I contacted Leo to the day his finished, my experience was truly fantastic. Leo is easy to work with. His prices are very reasonable. Once his crew began, they did not stop until the job was complete. They were on time every day and did a great job cleaning the site before they departed. Should we have any more jobs around the house, I will absolutely be calling Leo. We couldn't be happier!

Concrete Sidewalk
Contractor in
Northern Virginia.Property-line to ADA-compliant.
Sidewalk installation & replacement · Loudoun, Fairfax & beyond
Sidewalks are the public face of a property. We pour and replace concrete sidewalks across Northern Virginia homes, designed to handle the freeze-thaw weather and the foot traffic of decades. Property-line sidewalks, front walks, ADA-compliant approaches, and full replacements of failing slabs.
or pay over time with financingRated excellent on Google.
I could not be happier with my stamped concrete patio built by Leo and his team. My old patio needed to be replaced and I contacted several contractors but Leo was quick to visit the site and came back with a fair price. They were able to start work within a week or two - now I can make the most out of patio season! Beautiful workmanship done by professionals.
Amazing work and communication! Recommend 100%
Fantastic company that did a great job on our front and side sidewalks. Please be sure to get a quote and consider Alpha Le Concrete for your next concrete job!! Leo was easy to work with and his crew was great!
Leo and his crew did an amazing job for my 2 concrete jobs! They poured 2 pads for me, 1st one was a 12x10 4 inch deep shed foundation and the 2nd one was a 15x25 6 inch deep patio. Both of them got done in one day and I'm very happy with the fast and professional worksmanship. Highly recommend Leo and his crew to anyone looking to do any kind of concrete projects!
Leo was great and the team did great work!

Sidewalks built to last decades.Not patched every few years.
A residential sidewalk takes more abuse than most surfaces on a property. Foot traffic, weather, tree roots from below, water from above. Poured wrong, it cracks and heaves in a few years. Poured right, it outlasts the home.
We pour new sidewalks along property lines, replace failing slabs, install ADA-compliant approaches where the sidewalk meets a driveway or entrance, and integrate sidewalks with landscaping and existing concrete. Each project starts with proper subgrade prep and ends with saw-cut control joints that direct cracking away from the visible surface.
From layout to last brush. Weather permitting.
Survey & layout
We measure the sidewalk path, check slope, look at existing concrete transitions, and confirm any ADA requirements.
Demo & prep
For replacements, old sidewalk is removed and hauled away. We grade the subgrade, compact it, and install a stable base.
Pour & finish
Forms set the edges, reinforcement laid per spec. Concrete poured and finished to a broom or smooth surface, depending on use.
Joints & cure
Saw-cut control joints placed by hand to control where cracks happen. We walk you through the cure window before foot traffic.
The work below the surface is what makes a sidewalk last.
Proper subgrade
Most failing sidewalks failed because the subgrade was rushed. We excavate to depth, compact properly, and install a stable base. Slab thickness alone doesn’t save bad prep.
Drainage built in
Sidewalks slope away from buildings and toward the natural watershed. No ponding, no slip hazards, no foundation seepage.
Hand-cut control joints
Saw-cut joints placed in strategic locations direct cracking out of sight, instead of random splits across the surface.
Concrete sidewalk questions. What homeowners ask first.
01 Do I need a permit for a sidewalk in Loudoun or Fairfax County?
Sidewalks that connect to public right-of-way may require a permit. Sidewalks entirely on private property usually don’t. HOAs may have additional requirements. We help navigate it on the estimate.
02 How long does a concrete sidewalk last?
30+ years with proper installation. The biggest enemies are bad subgrade and tree roots. We prep the base properly and recommend root barriers where appropriate.
03 Will my sidewalk crack?
There’s a saying in the concrete trade: there are two types of concrete, concrete that has cracked, and concrete that hasn’t cracked yet. All concrete cracks eventually. Our job is to control where: we compact the base properly, reinforce the slab, and place control joints by hand so cracks happen on planned lines instead of random splits. Our 1-year limited workmanship warranty covers structural cracks that meet the size/length thresholds, see full warranty terms.
04 Can you replace just one section of sidewalk?
Yes. Sidewalks are typically poured in sections (slabs), and individual sections can be removed and replaced if they’re the only ones failing. We try to color-match the new concrete to the existing.
05 How much does a sidewalk cost in Northern Virginia?
Cost depends on length, width, access, and whether you’re replacing existing or pouring new. We give a real number after a quick site walk or based on photos and dimensions.
Got a sidewalk project? Tell us about it.
Six quick fields. We’ll come back with a real estimate from someone who actually pours sidewalks.
Or pick up the phone. We’d love to walk it.
Most sidewalk projects start with a phone call or a few photos. We talk through what you’re working with and schedule a site visit when it makes sense.