Concrete Slab Installation in Atlanta, GA
Atlanta Concrete Services pours concrete slabs for garages, sheds, workshops, carports, HVAC units and standby generators, and we replace or level slabs that have cracked or sunk. Small or large, each one gets the same base work, because a slab is only as flat as the ground under it.
Metro Atlanta slabs deal with damp, slow-draining red clay, about 50 inches of rain a year and heavy humidity that pushes moisture up through concrete into anything stored on top. Termite pressure across Georgia is high as well. So our slabs get a compacted GAB base, a vapor barrier where the slab will be enclosed, thickened edges that reach the 12-inch minimum footing depth Georgia uses, and steel throughout.
From College Park and East Point up through Sandy Springs, Roswell and Alpharetta, and east to Decatur, Tucker and Stone Mountain, we pour slabs across the metro & more. Curing time depends on weather and load, and we explain the timeline in how long before you can drive on new concrete in Atlanta.
Why Choose Atlanta Concrete Services
Concrete Slab Services
Concrete Slab Installation
Bare dirt where you want a building, or old pavers that rock when you step on them, is the starting point for most slab jobs. We excavate, compact the clay, lay a 4-inch GAB base, place rebar or wire on chairs, and pour a level 4-inch slab or thicker where the load calls for it.
Residential slabs typically run $7 to $15 per square foot installed. A 12 by 16 shed pad works out to roughly $1,344 to $2,880.
Garage & Carport Slabs
Garage floors that crack down the middle or hold water at the door usually lacked a base or a proper fall to the opening. We pour garage slabs with thickened, reinforced edges, a slight pitch toward the door and isolation joints at walls and columns.
A detached garage normally needs a building permit, through the Office of Buildings inside city limits or the county or city office where you live, and we pour to the approved plans.
Slab Replacement
A slab that has split into pieces, sunk at one corner or shows rebar rusting through the surface is past patching. We break it out for $2 to $6 per square foot, rebuild the base and repour with fresh steel.
Before we repour, we look for the cause, like a downspout dumping beside the slab or an old stump rotting below it, and fix that first.
HVAC & Generator Pads
Plastic AC pads that sink into the clay and tilt your condenser shorten its life. We pour level, reinforced pads for condensers, heat pumps and whole-house standby generators, which many Atlanta homeowners added after long outages from summer storms and falling trees.
Generator pads are sized to the manufacturer's clearances, and we coordinate timing with your electrician and gas plumber.
Shed & Workshop Floors
A shed sitting on blocks lets moisture and critters underneath and slowly racks out of square. A poured floor with a vapor barrier keeps tools and lawn equipment dry through Atlanta's humid summers.
Larger accessory buildings in the city need a site plan and permit, and we can pour the slab to the setback lines on your approved plan.
Slab Repair & Leveling
If a slab is in one piece but has dropped or tilted, lifting it is cheaper than replacing it. Our concrete leveling work raises sunken slabs back to grade, and crack and surface repairs typically run $3 to $8 per square foot.
We will tell you honestly when a slab is too far gone for repair to last.
How We Pour Your Slab
Plan the Slab
We confirm the use, the load, the size and where water drains, and we check setbacks and permits. You get a written quote that spells out thickness, base depth and reinforcement.
Excavate & Compact
After Georgia 811 locates come back, we dig to firm clay, remove roots and soft spots, and compact the subgrade. Then the GAB goes in and gets compacted in lifts.
Barrier, Steel & Forms
For enclosed slabs we lay a vapor barrier after any termite pretreatment your builder or pest company applies. Steel sits on chairs and forms are set dead level or to the planned pitch.
Pour, Finish & Cure
We pour, screed and finish to your choice of broom or smooth trowel, cut control joints and cure the slab properly. Framing can usually start in a few days, with full strength at about 28 days.
Slab Questions From Atlanta Customers
How much does a concrete slab cost in Atlanta?
Most residential slabs run $7 to $15 per square foot installed. A 24 by 24 garage slab would land around $4,032 to $8,640, depending on thickness, access and how much grading the site needs.
How thick should my slab be?
Sheds, patios and HVAC pads do fine at 4 inches. Garages and slabs carrying heavy equipment get 5 to 6 inches with thickened edges, and anything carrying a structure is built to the approved plans.
Why does my garage floor sweat in summer?
Warm, humid Atlanta air condenses on a cool slab, and moisture also wicks up from wet clay when there is no vapor barrier. On new slabs we install a barrier, and on existing ones good ventilation and a breathable sealer help.
Do I need a permit for a shed slab?
Small sheds often do not, but larger accessory buildings do, and every structure has to meet zoning setbacks and lot coverage limits. Rules differ between the City of Atlanta and Cobb, DeKalb, Gwinnett or Fulton jurisdictions, so we check your address.
Can you pour on a sloped backyard?
Yes. We either cut into the slope, build up with compacted fill and a turned-down edge, or add a short wall on the low side. What we never do is pour on loose fill.
When can I build on the new slab?
Light framing can often start after three to seven days. Heavy equipment and vehicles should wait at least a week, and the slab reaches design strength around day 28.