Concrete Slab Contractors in Greenville, SC
Ace Concrete Construction pours flat, crack-controlled concrete slabs across Greenville and the Upstate. Shed and shop floors, garage slabs, patio slabs, and equipment pads, built by our own crews from the base up. Free estimates.
- SC licence RBS.65343
- 20+ years in the trade
- Free on-site estimates
- Open Mon–Sun 7am–7pm
Fast & Free
Get Your Free Concrete Estimate
What thickness and reinforcement your slab needs
| Slab use | Typical thickness | How we reinforce it |
|---|---|---|
| Patio, porch, shed floor | 4 inches | Wire mesh, compacted stone base |
| Garage floor, single vehicle | 4–5 inches | Wire mesh or rebar, thickened edge, vapor barrier |
| Shop floor, heavy equipment, trucks | 5–6 inches | Rebar grid, thickened edges, engineered base |
These are the ranges we work from. The right spec for your slab comes from the load and the soil at your site, which is what the free estimate is for.
Concrete slab questions we hear in Greenville
It depends on what the slab carries. A patio or shed floor is usually poured at four inches. A slab that has to take a vehicle, a lift, or heavy equipment gets five to six inches with a thicker edge. We spec the thickness on-site once we know the use and the soil, so you are not paying for concrete you do not need or living with a slab that is too thin.
We do the whole job in-house. That means grading, hauling in and compacting the stone base, setting forms, placing reinforcement, pouring, and finishing. Base prep is where most failed slabs go wrong, so we do not leave it to someone else.
Upstate red clay swells when it is wet and shrinks when it dries, and that movement is what cracks slabs poured on a poor base. We control it with a properly compacted stone base, the right reinforcement, and control joints cut where cracks want to form, so the slab moves in the joints instead of across the surface.
You can usually walk on it the next day. For a vehicle or heavy equipment we ask you to wait until the concrete has cured enough to carry the load, which is typically about a week depending on the mix and the weather. We give you the real timeline for your pour, not a guess.
Yes. Garage floors, detached shop and workshop slabs, and pole-barn floors are core work for us across Greenville, Taylors, Greer, and the wider Upstate. If you are building the structure too, we coordinate the slab with your framer.
Call us at 864-214-5271 or request a free estimate online. We come out, look at the site and the access, and give you a straight number and a timeline.
Written and reviewed by Azriel Woodard, of Ace Concrete Construction (SC residential builder licence RBS.65343), and a member listing in the Home Builders Association of Greenville directory. Crews are in-house and estimates are free.
Slabs we pour around the Upstate
- Step : 01
Shed & shop floors
Level, sealed floors for detached garages, workshops, and pole barns that have to hold tools, benches, and traffic.
- Step : 02
Patio & porch slabs
Broom-finished or ready for a decorative topping, sized to your yard and sloped to drain away from the house.
- Step : 03
Garage floor slabs
Poured to carry vehicles, with thickened edges and a vapor barrier under the pour. Pairs with our driveway and garage slab work.
- Step : 04
Equipment & utility slabs
Bases for generators, tanks, and yard equipment that need a flat, load-rated pad. For AC and dumpster pads, see our concrete pad page.
How we build a slab that stays flat
Most slab failures trace back to the base and the joints, not the concrete itself. Here is the order we work in on every pour.
- Step : 01
Grade and compact the base
We strip the topsoil, bring the sub-grade to the right height, and compact a stone base in lifts. On Upstate clay this step matters more than anywhere, because clay that was never compacted keeps settling under the slab.
- Step : 02
Form, reinforce, and set the thickness
Forms go in dead level. We reinforce with wire mesh or rebar depending on the load, add a vapor barrier where the slab is enclosed, and set the thickness to the use. A four-inch pour is right for a patio or a floor; a slab taking a vehicle or equipment gets five to six inches and a thicker edge.
- Step : 03
Pour, finish, and cut the joints
We place a 4000 PSI mix, finish it to the surface you want, and cut control joints so the slab cracks along a clean line instead of across the middle. Then we let it cure before it takes any real load.
Slab, pad, or footing: which one is your project?
These three get mixed up on the phone all the time, and pouring the wrong one wastes money. Here is the short version.
- Step : 01
A slab
A large flat surface you stand on, park on, or work on. A shop floor, a garage floor, a patio. That is this page.
- Step : 02
A pad
A smaller base built to hold one heavy thing in place, like an AC condenser, a generator, or a hot tub. Those live on our concrete pad page.
- Step : 03
A footing
Structural concrete below grade that carries a wall or a building. That is foundation work, on our foundation and retaining wall page.
If you are not sure which one you need, tell us what is going on the concrete and we will spec it right the first time.
Pouring garage and building slabs
A building slab from forms to finish: perimeter set, reinforcement placed, concrete placed and screeded, then floated and finished flat.
See why Greenville and Upstate, SC residents choose us
Ace concrete was excellent. They did a wonderful job. Very great experience with the workers and was very surprised that the owner showed up at the job and he actually did smoothing of…Google review
Ace Concrete did an amazing job with our patio addition. I was able to get a quote quickly, and they even completed the job one day after receiving my quote! I had quotes from other…Google review
Ace knocked it out the park for me on a large concrete driveway pour in Taylors, SC. From the initial estimate with Jason to the onsite coordination with Tyler, Ace was extremely…Google review
Great job, the pad for our generator is perfect I highly recommendGoogle review
I needed a 24' x 40' concrete floor for a metal building. After getting several quotes I decided to go with Ace Concrete Construction. I had met with Will Murphy and immediately felt like…Google review
Great work team was finished in a day and all the areas look great.Google review
Old Garage Floor Cracking or Flaking? When to Replace a Garage Slab in Greenville
Is your old garage floor cracking, flaking, or settling? How to tell a resurface from a full garage slab replacement in Greenville, why they fail, and what a proper pour includes. Free estimates.
Read itSeptember 8, 2026Freeze-Thaw in the Upstate: What January and February Do to Concrete That Was Poured Wrong
How Upstate SC freeze-thaw cracks and spalls concrete each winter, why a badly poured slab fails first, and what protects a driveway or patio. Free estimates.
Read itSeptember 8, 20265 Things to Check Before Pouring a Commercial Slab or Parking Pad in Greenville County
Planning a commercial slab or parking pad in Greenville County? Five things to check first: load, base, drainage, joints and permits. Free site visits.
Read itWho Ace Concrete Construction is, where it works, and under what licence
Where Ace Concrete works
Get your free concrete estimate
We price the job on site. Open Mon–Sun 7am–7pm.
Tell us about the job
Someone comes out and prices it standing on it. Estimates are free.
- Driveways, slabs, patios and walks
- Foundations and retaining walls
- Commercial and industrial pours
- Demo and repair
Fast & Free
Get Your Free Concrete Estimate