Garage floor concrete in Mesa AZ - a level slab that starts with firm ground
Cracked, sinking or dusty garage floor? We pour a new slab on firm, packed ground, planned around how you use your garage.

- Licensed and fully insured.
- Free on-site estimates.
- Replies within 1 business day.
What goes into a new garage floor in Mesa?
Garage floor concrete in Mesa is a new slab poured right on the ground under your garage, and because nothing else holds it up, it only stays flat if that ground is evenly firm. We're based in Mesa and take garage floor jobs across the cities around it, and every one of them starts with the ground.
Most calls start with an old floor that's cracked across, sunk by the door or wearing to powder, or a new garage that needs its first floor. The price mostly moves with the size of the garage, whether an old floor has to be broken out and hauled off, how much ground work sits under it and whether you're planning a lift or a coating. The schedule turns on the weather and on getting the ground right, and we won't rush either one. I write the estimate out on site so you can see what your own price covers.
How can you tell your garage floor needs replacing?
Cracks that keep growing
A thin crack in a garage floor is normal, but one that keeps widening or has one side sitting higher than the other usually means the ground underneath has moved. Waiting lets water and the weight of your car work into the gap, and the broken section gets bigger.
One side sinking lower
When a corner or the area by the door drops away from the rest, it usually points to soft ground or fill that was never packed before the first pour. The longer it settles, the more the edges break and the more slab has to come out.
Dusty or flaking surface
If the top of the floor turns to powder under a broom or chips where you park, the top layer is weak, usually from how it was poured or cured. Wear spreads with every car, and a coating won't hold well on a surface like that.
How we build garage floor concrete
On a replacement, we break out the old floor and haul it off, then dig down to firm ground instead of raking the dirt level, and pack the subgrade, the ground the slab sits on, so it carries the new concrete evenly. We set the forms and the rebar, steel bars that hold the slab together if a crack opens, then pour, finish the surface and cut control joints, shallow saw cuts that give the slab a straight line to crack along before it picks its own spots. We check that water runs out the door and not toward the house, and then the floor cures, which is the wait before you drive on it while the concrete gains strength. If the budget gets tight, the base is the last place I'd cut, because a nice finish on poorly packed dirt settles anyway and nobody can fix the ground once the concrete is on it. And if a car lift or a floor coating might come later, tell us now, since it's a lot easier to build the slab for that from the start than to fix it after.
Garage work often spills into what's around it. If you want color or a pattern on the apron or the walk outside, that's our decorative concrete work, and if the garage backs onto a slope that keeps shedding dirt onto the slab, concrete retaining walls hold that ground in place.
Replacing an old floor
This suits a garage where the floor has sunk, broken across or worn through, because patching over bad ground only buys a little time. We take it out, fix what's underneath and pour new.
Smooth troweled finish
This suits a garage you use as a shop, since a smooth floor sweeps clean and rolls easily under a creeper or a toolbox. It does get slick when it's wet, which matters if you track water in.
Light broom finish
A broom finish is a fine texture dragged across the fresh concrete, and it suits a garage that sees wet tires or muddy shoes because it gives your feet some grip. It's a little harder to sweep than a smooth floor.
Get a written estimate for your garage floor
Send the form and we'll reply within one business day to set a time. I'll come out, look at the floor and the ground under it, and write you a free estimate with no pressure and no obligation.
Call (480) 645-9450What happens after you call about a garage floor in Mesa?
Here's how a garage floor job runs with us, from your first call to the final walk-through, and who you'll be dealing with at each step.
Call to set a visit
When you call or send the form, I set up a time to come out, look at the garage and hear what you want from the floor. It helps to know then whether an old floor is coming out.
Get your written estimate
The estimate spells out the prep, the pour and any removal, so you know what you're paying for before you decide. If something depends on ground we can't see yet, I'll tell you that up front.
We pour around the weather
Once you're ready, we schedule around the weather, and our crew does the forming, pouring and finishing while I check in on site through the job. Clearing the garage before we start lets the crew work the whole floor.
Walk the finished floor
When the work's done, we walk the finished floor with you and go over how long to keep off it while it cures. Staying off it early is the easiest way to protect what you paid for.
Why Mesa homeowners call Cornerstone Mesa Concrete for garage floors
On a garage floor, the parts you'll never see after the pour, the ground and the cure, decide how it holds up, so that's where I spend the care. Send us the form or call (480) 645-9450 and I'll come take a look.
I write every estimate myself
I come out myself to look at your garage and write the estimate, and I check in on site while our crew forms, pours and finishes. The person who priced your job is the one watching it get done.
Five years on our own
We've been in business since 2021, and before that I worked on crews under a boss who made us tear out anything that wasn't right. I still hold our floors to that, because tearing out concrete costs everyone.
Licensed for work this size
Arizona law lets someone without a contractor's license take on only small, casual jobs under $1,000, labor and materials included, and not at all once the work needs a building permit. We're licensed and fully insured, so that question is settled before we start.
Garage floors and the work around them in Mesa
Mesa Development Services issues construction permits in the city, and its permit list names additions and demolition, while its no-permit list names replacing flooring. Neither one names garage floor concrete, so the list doesn't settle whether your job needs a permit, and you can ask Mesa Development Services since the office answers permitting and building code questions before work starts. When a job needs a permit, we settle with you up front who pulls it, and we work to the inspections the city sets. Breaking out an old floor also raises dust, and Maricopa County requires any construction or demolition that can raise dust to control it, whatever the size of the site, so we keep the dust down while we break out and haul.
Questions about garage floor concrete in Mesa
How much does a new concrete garage floor cost in the Phoenix area?
A new concrete slab in the Phoenix area usually costs about $4.50 to $8 per square foot, which is the going rate for the slab around here, not a quote of ours. Where your garage lands depends on its size, whether an old floor comes out and how much ground work it needs, and your written estimate breaks each of those out.
Will my new garage floor crack?
It may crack a little, and that's normal even on a floor that's built right. The industry's own floor guide says even well designed, properly built floors are unlikely to be completely free of cracking and curling, which is the edges lifting slightly as the slab dries. I'd rather tell you that now than after, and the control joints we cut are there to give those cracks a planned place to go.
Can concrete be poured in a Mesa summer?
Yes, as long as the pour is planned around the heat. Hot weather makes fresh concrete set faster, harder to finish and more likely to crack from shrinkage, and a windy, sunny day calls for stricter precautions than a calm, humid one at the same temperature. Ask us, or anyone you're comparing, how the mix stays workable without extra water added at the site, because the heat makes that shortcut tempting.
Can a garage floor hold a two-post car lift?
It can, if the slab is planned for the lift before it's poured. Lift loads and anchors can call for a certain concrete strength and reinforcement, so get the lift maker's concrete requirements and bring them to the estimate.
How do I get a new garage floor ready for an epoxy coating?
Have the floor's moisture and surface texture checked before any coating goes on, because a young floor can look dry and still not be ready. Oil, moisture, leftover curing compounds and tire plasticizers, chemicals that rub off tires onto the floor, can all keep a coating from sticking well.
What causes a garage floor to sink?
Usually uneven ground under the slab, since the concrete rests right on the soil. Soft pockets, loosely filled utility trenches and buried organic material like roots can settle while the rest of the site stays firm, so one area drops even when most of the ground felt solid. At the estimate, ask how we find and firm up those spots before the pour.
Other concrete work around your garage
- Decorative concrete
Decorative concrete adds color and pattern to the slabs people see most, like the walk to your front door or the patio out back.
- Concrete retaining walls
When your garage or driveway sits against a slope, a concrete retaining wall holds the dirt back so it stops washing onto the slab.
Service areas around Mesa, Arizona
Cornerstone Mesa Concrete is based in Mesa, Arizona, and takes garage floor jobs across the cities around it. The 12 cities below each have their own page, including Tempe and Scottsdale, and they aren't the only places we work.
Mesa, AZ
Get your garage floor planned right
Call (480) 645-9450 or send the form with your garage size, whether an old floor comes out and any lift or coating plans, so the estimate covers all of it.
