Concrete Contractor in O'Fallon, MO - Driveways and Patios Built on a Solid Base
K&L Saint Charles Concrete is a concrete contractor working in O'Fallon, MO. We pour and replace driveways, patios, sidewalks, steps and retaining walls for homes across the city, digging out and packing the base before any concrete goes down.

- Licensed and insured.
- Free on-site estimates.
- We respond within 1 business day.
About O'Fallon, MO
O'Fallon is one of the bigger cities in St. Charles County, and a lot of our calls here come from subdivision homes asking about front driveways, back patios, the walk up to the porch and the steps that go with it. Many of those neighborhoods went up quickly, so the concrete we look at was often poured by the builder along with the house and is now old enough to show where corners got cut. There are older streets closer to the city's original center too, plus shops and small commercial lots that need walks and pads. The same kind of housing runs right into St. Peters next door, and we're based a short drive east in Saint Charles.
On these lots the dirt right around the house is usually fill that was pushed back in after the foundation went in, and that's where a slab settles first. So the job here usually starts with digging down to firm subgrade, the ground the slab actually rests on, and packing new base before we set a single form.
Services in O'Fallon, MO
Concrete driveway building
Builder-poured driveways in O'Fallon subdivisions often sink near the garage, where loose fill was never packed. We tear out the bad sections, rebuild the base and pour a new slab.
Concrete sidewalk building
Front walks here often crack where downspouts dump water beside them. We build a new concrete sidewalk on a packed base, pitched so water runs off it.
Concrete patio construction
Back patios here usually butt against the house, so one that tips wrong sends water to the foundation. We set the slope first so it drains away from your house.
Concrete retaining walls
Yards that slope toward a creek or ditch keep losing soil until something holds them. We pour retaining walls on solid footings with drainage behind, so water doesn't build up.
Concrete steps construction
Front steps poured against a house often pull away and tip as the fill under them settles. We dig out, set footings below the loose dirt and pour steps on them.
Foundation raising
Homes on filled lots or wet ground can settle on one side, showing up as cracked slabs and sticking doors. We find what moved and raise it back toward level.
What I check before we pour in O'Fallon
In O'Fallon the permit question usually lands with one of two city offices. The Building Division issues residential permits for new homes, additions and major alterations, while the Engineering Department handles driveway permits and grading or land disturbance permits. When a permit is needed, the review and inspections set the pour date more than the concrete does, so I check with the office that covers your address before we put anything on the calendar, and we handle the filing and keep you posted. Before you hire anyone, ask for proof of insurance and whether they hold a business license with the city, which takes those applications on its website. We're licensed and insured. The price itself turns on the size of the slab, how much old concrete comes out, how deep we dig to reach firm ground, how close the truck can get and the finish you pick. If the budget's tight, I'd rather you go with a plain broom finish, the light texture that gives shoes and tires some grip, than cut the base, because you can dress up a surface later but you can't fix what it sits on without tearing it out.
Most of what we pour here is residential, on subdivision streets where the bottom of the driveway meets a public sidewalk and a city street, so the part at the curb gets planned differently from the part up by the garage. On cul-de-sacs and backyard patios the ready-mix truck can't always get close, and how we move concrete to the forms, by chute, wheelbarrow or pump, shows up on the estimate. We've been pouring concrete since 2013, and if you own a rental or a second property, we do the same work in St. Louis County cities like Florissant and Hazelwood.
O'Fallon, MO properties and local conditions
More than 40% of St. Charles County is classified as flood-prone land, and even away from the mapped areas plenty of yards in O'Fallon have low spots where water stands. Water sitting along the edge of a slab softens the subgrade under it, and that's usually when a driveway drops at one corner or a patio cracks across the middle. Before I price anything here I look at where the downspouts and the yard send water, and we set the slope so the slab sheds it away from your house instead of down into the base.
Most of what fails here fails the two ways I spent years repairing for a property management company: a base that was raked flat instead of dug out and packed, and control joints, the grooves that tell a slab where to crack, cut late or skipped. We fix both on the replacement, and I'll show you where the old slab went wrong.
Get a written concrete estimate for your O'Fallon project
We reply to every call and message within one business day to set up a visit, and the on-site estimate is free with no pressure to book. I come out to your O'Fallon address myself, look at the site with you and ask how you'll use the concrete. Then I send a written estimate with each part of the job listed separately, so you can see exactly what you're paying for.
How a concrete job in O'Fallon goes once you call
Call or send us a message
Tell us what's going on with your driveway, patio or walk, and we'll set a time for me to come out. You don't need to have the job figured out yet.
Walk the site with me
I measure, check the drainage and the old base, ask how you'll use the concrete and explain your options before I write anything up. Each part of the job gets its own line, so you can see where the money goes and decide what to keep.
We line up permits, then pour
We check what your address needs from the city or county, and on driveway work that needs the city's permit there are two inspections, one after tear-out and form setup and a final one when the work is done. Our crew lead runs the job from dig-out to finishing.
Walk the finished job together
When it's done I walk it with you and go over curing, the days the concrete needs to gain strength before you walk on it and then drive on it. I'll give you the dates for your pour and how to care for the slab after.
Frequently asked questions
When does a driveway need a permit in O'Fallon, MO?
The city requires a driveway permit to replace or change the part in the city right-of-way, which is the apron and sidewalk area at the street, and to widen a driveway anywhere or add a new one. A new home's driveway falls under that home's building permit instead. The owner applies for the driveway permit online or at City Hall and pays a $50 fee, and I'll tell you at the estimate whether your job needs one and help you through it.
Do I need a permit for a concrete retaining wall in O'Fallon?
Plan on it, because retaining walls are on the city's permit list. If you want to ask before I come out, the Building Division's number is 636-379-5660. If the wall also means reshaping the slope, we'll check the grading side with Engineering too.
Who else besides the City of O'Fallon can require a permit for concrete work?
An independent fire district can, because the fire districts serving parts of O'Fallon are separate governments outside the city's authority and may require their own building permit. The city also requires a permit for any utility work or utility digging, on private property as well as in the right-of-way. When we check your address before a job, we'll tell you if another office has to sign off.
How do I find out if my O'Fallon home is in a flood area?
Start with the city's Floodplain Map Lookup, which shows flood areas provided by FEMA, though the city says it's for reference only and the official flood maps are on FEMA's website. City Engineering regulates development in the 100-year floodplain, so if your lot sits in one, that matters before we plan a slab or a wall. Either way, I'll look at where water collects on your property during the estimate.
How much does a new concrete driveway cost in O'Fallon?
Your price comes from the driveway's size, how much old concrete has to come out and how much base work the ground needs, so I won't guess at a number before I've seen it. Thickness, rebar, the steel inside that holds cracked pieces together, and the finish you choose move it too, and work at the street adds the city's driveway permit. Call (636) 277-0973 and I'll come measure.
What causes a new concrete driveway to crack, and how do you prevent it?
Concrete shrinks as it cures, so a slab usually cracks somewhere, and the job is to decide where. That's what the control joints are for, cut on time so the crack follows a line we chose. Add the packed base and the slope I talked about above, and a pour scheduled away from the midday heat so the top doesn't dry weak and dusty.
Service areas
Saint Charles, MO
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Bridgeton, MO
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Hazelwood, MO
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Florissant, MO
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St. Peters, MO
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Chesterfield, MO
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Saint Ann, MO
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Maryland Heights, MO
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Creve Coeur, MO
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Town and Country, MO
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Overland, MO
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Explore the services
Concrete driveway building
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Concrete patio construction
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Stamped concrete services
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Concrete sidewalk building
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Garage floor concrete
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Decorative concrete
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Concrete retaining walls
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Concrete floor installation
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Concrete pool decks
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Concrete steps construction
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Slab foundation building
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Foundation installation
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Concrete parking lot building
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Concrete footings
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Foundation raising
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Concrete cutting
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St Charles, MO
Book your O'Fallon concrete estimate today
A quick note about what's cracking, sinking or holding water lets me show up with the right questions, so call (636) 277-0973 or send the form.




