Garage Floors · Columbus Concrete Repair
Garage Floor Replacement in Columbus, OH
Cracked, sunken or salt-eaten garage slab? Break it out and pour a new floor. Request a free estimate.
Serving Columbus and 31 nearby towns, from Dublin and Westerville to Grove City
Free Garage Floor Replacement Estimate
Tell us the type of slab, its rough size and what it is doing (cracking, sinking, heaving or flaking). Expect a phone call back to go through it and pick a day to come see the slab.
- Free estimates
- Tear-out and replacement
- Base rebuilt, not patched
- Homes and businesses
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Garage Floor Replacement
Garage Floor Replacement for Columbus, OH
Garage floors fail from the door inward. Snow and salty slush drip off cars all winter and sit on the slab, so the first few feet inside the door start to flake and pit. Cracks that open and keep widening, or a floor that has dropped away from the foundation walls and left a gap at the edges, point to fill that was never compacted under the slab. Water collecting in the middle instead of running toward the door is another sign the floor has moved since it was poured. In detached garages, frost can heave a slab resting on wet clay.
Replacement means emptying the garage, breaking out the old floor in pieces small enough to load, and correcting the ground beneath it. Soft spots are dug out and filled with compacted gravel. The new slab typically goes in at 4 inches thick, more if a heavy truck or a car lift will sit on it, with reinforcement, isolation material along the walls and a gentle slope toward the door. Control joints divide it into panels so any cracking stays at the joint lines instead of wandering across the floor.
What's included
What goes into garage floor replacements
- 01
Attached and detached garages
Floors inside attached garages and slabs for freestanding ones, from a single bay to several.
- 02
Break-out inside a building
Careful demolition that protects walls, doors and the overhead door track while the old floor comes out.
- 03
Base correction
Soft fill removed and a new compacted gravel layer placed so the floor stops settling.
- 04
Slope to the door
A gentle pitch that sends meltwater and wash water outside instead of into the corners.
- 05
Isolation and control joints
A separation strip at the walls, and joints cut to divide the floor into roughly square panels.
- 06
Apron at the door
The outside apron replaced too where it has sunk or scaled along with the floor.
Examples
Garage Floor Replacement: examples
Example photos of the type of work.
How it works
Garage Floor Replacement, step by step
- 1
Empty and inspect
Clear the garage and check where the floor has dropped and how water moves across it.
- 2
Remove the old slab
Cut along the walls where needed, break out the floor and haul the pieces away.
- 3
Prepare and form
Compact the subgrade, add gravel, set screed heights for slope and place the steel.
- 4
Pour and cure
Pour and trowel the floor, cut joints, and wait about a week before parking inside.
Questions
Garage Floor Replacement questions
Why is the floor flaking right inside the garage door?
That band is where salt-laden snow melts off your car. The brine soaks into the surface, freezes and thaws, and breaks the top apart a little at a time. A new air-entrained floor, a penetrating sealer once it has cured, and clearing slush before it sits all help the replacement last.
What makes one garage floor replacement cost more than another?
Floor size, how thick the old slab is, whether it holds steel, how much fill below it needs correcting, and how easily equipment can reach the garage. A thicker slab for a heavy truck or a lift also changes the estimate. Nothing is priced until the floor has been seen in person.
What do I need to do before my garage floor is replaced?
Empty the garage completely, including shelving that stands on the floor, and plan to park outside for about a week after the pour. Wall-mounted items can usually stay put. If any digging reaches outside the garage, utilities are marked through 811 first.
Can a garage floor be replaced in sections?
Sometimes. If one corner or the strip by the door has sunk and the rest is sound, that part can be cut out at a joint and poured new. Floors with cracks across most panels, or that have dropped all along the walls, usually come out entirely.
Should the new garage floor be smooth or broom finished?
Inside, most people choose a smooth steel-trowel finish because it sweeps clean; it can get slick when wet, so a light broom texture near the door is an option. The apron outside should always have texture for footing in winter.
Tear-out and replacement
Related work
Driveway Replacement
Partial or full tear-out of cracked, sunken or scaling driveways, rebuilt on compacted gravel with steel.
More on driveway replacement
Concrete Tear-Out & Removal
Breaking out and hauling away old patios, walks, pads, steps and driveways, alone or ahead of a new pour.
More on concrete tear-out & removal
Patio Replacement
Sunken, cracked or back-pitched patios torn out and poured again with slope away from the house.
More on patio replacement
Service area
Garage Floor Replacement around Columbus
We handle garage floor replacements for homes and businesses in Columbus and these nearby towns:
Franklin County
Pickaway County
Fairfield County
Delaware County
Licking County
Talk to us about garage floor replacements
Describe the crack, the sinking or the heave, and get a free replacement estimate from someone who will tell you if it can wait.