Residential concrete
Concrete Slabs and Garage Floors in Marietta, GA
JJC Concrete pours garage floors, shop pads and other concrete slabs for homeowners in Marietta and nearby cities across Cobb County. Slab work covers ground preparation, forming, pouring and finishing, and removal of an old floor when one is in the way. We are family owned, licensed and insured, and have poured concrete since 2010.
- Family owned since 2010
- Licensed and insured
- Hablamos español
Get a Free Estimate
Tell us about the project and where it is.
By sending this form, you agree that JJC Concrete may contact you about your request by phone call, text message or email, using the details you provide. Message and data rates may apply. Consent is not a condition of any purchase. See our Privacy Policy.
Prefer to talk? Call (770) 755-2622. Hablamos español.
What Kinds of Slabs Does JJC Concrete Pour?
A slab is a flat piece of concrete poured on the ground, and homeowners need them for a lot of reasons. What they share is the need for a level, solid surface that holds weight without shifting. A garage floor meets the house foundation and the driveway, a shop pad sets the footprint of a building, and an equipment slab has to stay put under heavy, concentrated loads.
If the slab is part of a bigger project, such as a new driveway leading up to a garage, the concrete driveways work can be planned alongside it.
- Garage floors, new or replacement
- Shop pads for a detached garage, workshop or storage building
- Slabs for sheds, equipment and outdoor storage
- Pads for trailers, boats or extra parking
- Removal and replacement of an old, damaged slab
How Is Georgia Clay Prepared Under a Slab?
A slab is only as steady as the ground under it. Residential flatwork guidance from the Illinois Ready Mixed Concrete Association calls for a subgrade with no organic matter or uncompacted fill, and for unstable soil to be dug out and replaced before the pour.
In Georgia that ground can be the red clay the state is known for, which gets its color from iron oxides left behind by long weathering. Because saprolite erodes easily once cover is stripped away, the edges of a cleared pad site need attention during grading. Lasers on site help set a slab to the grade it needs.
Should a Garage Floor Be Level or Sloped?
A garage floor is built with a gentle slope toward the door so water from wet cars, melting ice or a hose runs out instead of pooling near the walls. A flat floor inside a closed room has nowhere to send that water.
Outdoor pads follow the same idea. Exterior flatwork checklists published by the NAHB call for at least a quarter inch of fall per foot and a clear escape route for water off every concrete surface, so a shop pad or equipment slab sheds rain rather than holding it.
What Affects Slab Thickness and Joints?
The right thickness depends on what the slab carries. A pad for a lawn tractor, a floor under a pickup and a shop floor holding heavy tools each ask different things of the concrete and the base, and many plans call for extra thickness or reinforcement where loads are heavy.
Joints are cut or formed so the slab cracks along planned lines as it shrinks. Industry guidance ties joint spacing to slab thickness, which is one reason the thickness question comes first. If a building plan or engineer has already set these details for your garage or shop, bring those drawings to the estimate.
Ready to talk about your concrete project?
Driveways, patios, slabs, walks and steps across Marietta and metro Atlanta. Monday to Friday, 8 AM to 6 PM.
Which Slab Finishes Can You Choose From?
The finish follows how the slab gets used. Inside a garage or shop, a smoother troweled surface is easier to sweep and roll equipment across, while outdoor pads can get a broom texture for grip in wet weather.
Talk through how you plan to use the space, including whether you want a coating or sealer on a garage floor later, so the surface is worked to suit it. A floor that will see car tires, jacks and rolling toolboxes calls for a different surface than a pad that holds a shed.
When Is a New Garage Floor Better Than a Repair?
A new floor is worth considering when the slab has sunk, heaved or broken into sections that rock under weight. Those signs point to trouble in the ground underneath, and a surface patch or overlay does not reach it.
Small, tight cracks in a floor that is still level are a separate matter. Describe what the floor is doing, including any spots where water collects or where the slab has pulled away from the walls, and the estimate can cover whether it needs to come out.
Slab Work Around Marietta and Metro Atlanta
JJC Concrete pours garage floors and slabs for homeowners in Kennesaw, Austell, Douglasville, East Cobb and other cities near Marietta. The crew's main work is poured basement and foundation walls for builders, and builders looking for that kind of work can find it under commercial concrete.
January 2025 brought Atlanta a low of 14 degrees and record 24 hour snowfall totals, according to the National Weather Service. Flatwork checklists call for covering fresh concrete when nights fall below 40 degrees, which matters for a slab poured late in the year.
How a Garage Floor or Slab Job Works
- 1
Free estimate
Describe the slab size, what it will hold, and whether an old floor or pad is already there. Share any plans or drawings you have.
- 2
Removal and excavation
An existing slab that needs replacing is broken out, and the pad area is dug to firm ground.
- 3
Base and grade
The ground is prepared and set to grade so the finished slab drains the way it should.
- 4
Forms and pour
Forms establish the edges and height, and the concrete is placed, leveled and finished.
- 5
Joints and cure
Joints are placed to guide cracking, and the slab cures before vehicles or equipment go on it.
Ready to talk about your concrete project?
Driveways, patios, slabs, walks and steps across Marietta and metro Atlanta. Monday to Friday, 8 AM to 6 PM.
Frequently Asked Questions
Do you pour garage floors?
Yes. Garage floors and slabs are part of the work JJC Concrete does for homeowners, along with shop pads and other flat concrete. That includes new floors in new garages and replacement of an old garage floor that has cracked, sunk or broken apart.
How much does a concrete slab cost?
It depends on the job. The size of the slab, what it needs to carry, how much excavation and grading the site needs, and whether old concrete has to come out all change the work. Ask for a free estimate with those details for a figure based on your slab.
Can you pour a pad for a shed or workshop?
Yes. Shop pads and slabs for sheds, workshops and storage buildings are part of the slab work JJC Concrete pours. If the building has plans or a manufacturer's foundation drawing, bring it to the estimate, since those details set the size and edges of the pad.
Do I need a permit for a garage or shop slab?
Permit requirements are set by the city or county, and a slab tied to a new building may be handled differently from a simple pad. Ask about permits for your project when you call, and have the address and any building plans ready.
How long have you been pouring concrete?
JJC Concrete has been pouring concrete since 2010. The company is family owned and based in Marietta, with family members working on the crew. Its main work is poured basement and foundation walls for builders, alongside garage floors, slabs and other residential flatwork for homeowners.
What hours can I reach JJC Concrete?
Office hours are Monday to Friday, 8 AM to 6 PM. The estimate form is available any time, so you can send the size and location of your slab whenever it suits you. Hablamos español, and Spanish speakers are welcome to ask for an estimate in Spanish.
Other concrete services
Driveways
New concrete driveways and full replacements in Marietta, including tear out, haul off, grading and base prep.
Learn morePatios
New concrete patios and patio replacements in Marietta, with grading and slope planned to drain away from the house.
Learn moreSidewalks and Walkways
New and replacement concrete sidewalks, front walks and side paths for homeowners in Marietta and metro Atlanta.
Learn moreSteps and Stoops
Poured concrete steps, front stoops and landings, new or replacement, for homes in Marietta and metro Atlanta.
Learn moreRemoval and Replacement
Tear out, haul off and replacement of cracked or sunken driveways, walks, patios, steps and slabs in Marietta and metro Atlanta.
Learn moreTalk to JJC Concrete
Homeowners get a free estimate. Builders and GCs can send plans for a bid. Hablamos español.
- (770) 755-2622
- jjcconcretellc@yahoo.com
- Monday to Friday, 8 AM to 6 PM
- Based in Marietta, serving metro Atlanta. See service areas
Learn more about JJC Concrete. We do not sell your information: read our privacy policy.
Get a Free Estimate
Tell us about the project and where it is.
By sending this form, you agree that JJC Concrete may contact you about your request by phone call, text message or email, using the details you provide. Message and data rates may apply. Consent is not a condition of any purchase. See our Privacy Policy.
Prefer to talk? Call (770) 755-2622. Hablamos español.