Concrete floor installation in O'Fallon MO - a flat slab on a well-built base
Cracked, uneven or chipping floor, or bare ground where one should go? We pour a slab on a packed base, jointed and cured on schedule.
- Licensed and insured.
- Free quotes on site.
- Expect a reply within 1 business day.
Patch the old floor or pour a new one?
It mostly comes down to whether the base under your floor is still solid. I'll check it when I come out and tell you plainly which way I'd go.
A repair is enough when:
- Cracks are thin and not growing
- The floor is still level
- No water comes up through it
- Chipping is only in a few spots
- The base underneath feels solid
A new floor makes sense when:
- Sections have sunk or tipped
- Cracks keep getting wider
- Damp keeps coming up through it
- The whole top is dusty and flaking
- There's no floor there yet
How your floor gets done
You call or send the form
Call (636) 614-2331 or send the form with the floor's size and where it goes, like a garage or basement, and we'll set a time for me to come out.
A visit set up
I look and measure
I come out, measure, check where water runs around the space and walk you through your choices, including what goes under the floor and why.
Your options explained
Written estimate and plan
You get a written estimate that says what's included and what isn't, like hauling the old concrete away, plus a plan showing when you can walk on it, park on it or seal it.
A written estimate
Our crew does the work
Our crew builds the base, forms and pours the slab, finishes it and cuts the joints on time, then leaves it to cure the way the plan says.
A poured, jointed floor
We walk it together
When the work's done and the site's cleaned up, I walk the floor with you and go over how to care for it while it cures and after.
Care instructions
What our concrete floor installation includes
Taking out the old floor
If there's an old slab, we break it out and haul it off, and your estimate says whether that's included.
Digging out and packing the base
We dig out and compact the subgrade, what the slab sits on, then add packed gravel so the floor doesn't settle later.
A sheet over the gravel
It helps keep moisture from below out of your floor and stops wet concrete from clogging the gravel during the pour.
Forms and rebar
We set the edges and place rebar, the steel bars inside the slab that help hold it together across a crack.
Pouring and finishing
We pour outside the midday heat and trowel the top smooth, or add a broom finish, a brushed texture that gives grip.
Control joints and clean-up
We cut control joints, shallow grooves that give the slab planned places to crack, then protect the floor while it cures and clean up.
What decides the price of a concrete floor?
Size comes first, then how thick the slab needs to be and whether there's an old floor to break out and haul away. Access matters too, since a garage the truck can back up to pours very differently from a basement we reach through a doorway. How much digging and packing the base needs, and whether the slab gets rebar, round it out. If the budget's tight, people want to cut the base first because nobody sees it on day one. I'd rather you trim the finish, because a nice top on a soft base is the floor we end up tearing out.
Stains, stamping and other decorative finishes add to the cost. The schedule turns on the weather, any permit checks and the cure, the wait before the floor can take weight. Pouring other work in the same trip, like concrete steps or a concrete pool deck, can change both. Your written estimate gives you your own figure.
Why O'Fallon homeowners call us for floors
I spent years building schedules for a busy company before I learned concrete on a crew, and I started D&R O'Fallon Concrete Company here in 2017. I still lay out every floor in order before anything's poured, because most of the bad floors I see went wrong before the pour, with the base, the drainage or a rushed schedule. I come out and do your estimate myself, and our crew handles the forming, pouring and finishing.
We're based in O'Fallon and work in cities across St. Charles County and St. Louis County. Before you pick a finish or sign anything, I'll explain what goes under your floor and why we picked it, and I'm glad to answer questions as we go. If you'd like to talk it through, call (636) 614-2331.
- Your estimate done in person by me
- A written plan for every step
- Satisfaction guaranteed
Get a written estimate for your concrete floor
Tell us the floor's size in square feet and where it goes, like a garage or basement. We'll reply within one business day to set up a free on-site estimate, with no obligation.
(636) 614-2331Questions about concrete floors
How much does a concrete floor cost around St. Louis?
Concrete slab installation in the St. Louis area usually runs about $4 to $14 per square foot. Reinforced slabs cost more per square foot than plain pads, and those prices don't include staining or stamping. That's the going rate around here, not our price, so your own figure comes from the written estimate I do on site.
How soon can I walk on a new concrete floor?
You can usually walk on a new concrete floor within 48 hours. Curing, the slow hardening that gives concrete its strength, takes 28 to 30 days to finish, so to be safe it's worth waiting about a week before putting heavier loads on it, like a car or loaded shelves. Your plan from us spells out when you can walk on it, park on it and seal it.
Will my new concrete floor in O'Fallon crack?
Probably a little, because some cracking and curling, where the edges lift slightly, is normal even on a floor that's well designed and well built. So a crack on its own doesn't mean the job was done wrong. We tell you that up front, then time the finishing, joints and curing so the cracks land where we planned.
How do I know if my concrete floor needs rebar?
Rebar won't stop a floor from cracking, but properly sized and placed reinforcement should keep the cracks that do form tight. Whether your floor needs it depends on what it'll carry and how it's built, which I'll go over when I look at the job. Ask how we'd size and place it, and I'll walk you through it.
What is the best way to keep moisture from coming up through a concrete floor?
The usual approach is packed gravel with a sheet over it, because the sheet keeps moisture and soil gases from coming up through the slab. National guidance doesn't agree on which sheet, since one building guide calls for plastic sheeting or a vapor retarder while the national concrete floor guide rules out ordinary polyethylene for moisture protection. Ask which sheet we're putting under your floor and I'll tell you why we chose it.
Which O'Fallon office handles permits for a concrete floor?
The city's Building Division handles permits for new homes, garages, basement finishes and major alterations, and its list names those jobs, not concrete floors, so check with them about yours. O'Fallon's fire districts are separate from the city and may require their own building permit, driveways and grading go to the city's Engineering Department, and if plumbing or drains go under the slab, the county requires those trades to hold a county license. We're licensed and insured, we check with the offices for your address before we schedule, and when a permit is needed, we handle the paperwork and line up the inspections.
Concrete floors around O'Fallon
We're based in O'Fallon and pour floors in St. Peters, Wentzville and the other cities below. Pick yours, or call if you don't see it listed.
Ask D&R O'Fallon Concrete Company for a quote
Call (636) 614-2331 or email quotes@ofallonconcretecompany.com, and you'll see the whole plan in writing before anything's poured.