Foundation installation in O'Fallon MO - a solid start for your new home
Building a new home and stuck between a basement, crawl space or slab? We help you pick one and build it right.
- Licensed and insured.
- Free quotes on site.
- Expect a reply within 1 business day.
Slab or crawl space, or a full basement?
It comes down to how water moves on your lot, your budget and whether you'll use the room below. I walk the lot with you so we weigh all three before you decide.
A slab or crawl space fits when:
- Groundwater is a steady problem
- The budget is tight
- You don't need room below
- Single-level living is the plan
- The lot sits fairly flat
A basement is worth it when:
- The lot drains well
- You'll use the extra living space
- You want storage below
- The budget covers the deeper dig
- A slope allows a walkout
How we build your foundation
Call or send the form
Call (636) 614-2331 or send the form with your lot address, the foundation type you're thinking about and the home size.
A visit scheduled
I walk the lot
I come out to look and measure, check how water moves across the lot, and walk you through a basement, crawl space or slab for your budget.
Your options explained
Written estimate and plan
You get it in writing with what's included and what isn't, plus a plan that lays out each step in order, from dig-out to backfill.
A written estimate
Our crew builds it
Our crew digs out, packs the base, pours the footings, sets every drain on a slab job, then forms, pours and finishes the concrete.
A poured foundation
Final walk-through
I walk the finished foundation with you, go over what comes next and how to care for it, and we leave the site cleaned up.
A clean, finished site
What foundation installation includes
Layout and dig-out
We stake out the footprint and dig to the depth your basement, crawl space or slab calls for.
A packed base
We dig out soft dirt and compact the soil the foundation sits on, so it holds instead of settling with loose fill.
Footings
We pour the concrete footings, the wide base that spreads the house's weight, before any walls go up.
Drains set first
On a slab, every plumbing drain is set in place and checked before any concrete is poured over it.
Rebar in the concrete
Steel rebar runs through the walls and slab to tie the concrete together and help it hold when the ground shifts.
Time to cure
We give the concrete time to cure, the slow hardening that builds its strength, before the next trade loads it.
What shapes the cost of a new foundation?
The type is the biggest choice. A slab takes the least digging and concrete, a crawl space adds short walls, and a basement means the deepest dig, full walls and the most concrete of the three. Size and shape come next, since every corner and step adds forming, along with how much dirt comes out and where it goes.
Your lot moves the number too, because wet ground, a slope or soft fill can mean more base, more drainage or a deeper dig. If something has to give in the budget, don't let it be the base, because it's buried on day one and the whole house rests on it. Weather and inspections set the schedule, and your written estimate lays both out.
Why O'Fallon builders and owners call us
I started this business in O'Fallon in 2017, after years building schedules for a busy company and then learning concrete on a crew. I still lay every job out in order before anything gets poured, because most foundation trouble I see starts with the base, the drainage or a rushed schedule.
I come out and do the estimate myself, and our crew handles the forming, pouring and finishing. Builders and property owners call us for slabs, footings and concrete parking lots, and I explain each step plainly before you pick anything or sign. Call (636) 614-2331 when you're ready to talk through your lot.
- A written plan in step order
- The owner at your estimate
- Satisfaction guaranteed on your foundation
Get a free foundation estimate for your lot
Send the lot address, the foundation type you're leaning toward and the home size. We reply within one business day, and I come out for a free on-site estimate with no obligation.
(636) 614-2331Foundation questions we hear most
Should I build a basement, crawl space or slab in O'Fallon?
A basement makes sense when the lot drains well and you'll use the room below, while a crawl space or slab is often the safer pick on wet ground or a tight budget. About 41% of the soil area in St. Charles County is expansive clay, the kind that swells when wet and shrinks as it dries, which is above the Missouri average of 37%, so how water moves on your lot weighs heavily here. I walk the lot with you and we weigh it together.
How much does a slab foundation cost near O'Fallon?
A slab foundation in the St. Louis area usually costs about $4.50 to $9.50 per square foot installed. That's the going range in the market, not our price, and size, site work and drain layout move it. I price basements and crawl spaces at the on-site estimate, in writing.
Which O'Fallon offices handle permits for building a new home foundation?
The city's Building Division reviews plans and inspects new homes, and its permit list covers new homes, additions and major alterations, so ask it how your foundation fits under your permit. Grading and land disturbance permits come from the city's Engineering Department at 636-379-7630, which also reviews plans in the 100-year floodplain. O'Fallon is served by several independent fire districts that may require their own building permit, so call the one covering your lot early. We're licensed and insured, we check with each office before we schedule, and when a permit is needed we handle the paperwork and line up the inspections.
Can a foundation be poured in winter in Missouri?
Yes, as long as the concrete, the steel, the forms and the ground it touches are free of ice, snow and frost, which a residential concrete standard requires. That's why cold weather can move a pour date. If your timing runs into winter, I'll tell you at the estimate how it affects the plan.
How do I add radon protection to a new home foundation?
Build it in during construction, because adding radon-resistant features to a new home typically costs a builder less than fixing the home afterward. Bring it up at the estimate so it's part of the plan before the base and slab go in.
What causes cracks in a new concrete foundation?
Most serious cracks start before the pour, with a base that was raked level instead of dug out and packed, or water that was never steered away from the house. On slab floors, control joints, shallow cuts that give the concrete a planned place to crack, keep cracks in lines we chose. That's why we spend our time on the base and the drainage.
Areas we serve around O'Fallon
We're based in O'Fallon and pour foundations in cities nearby, including St. Peters and Wentzville. Pick your city below, or call (636) 614-2331 if yours isn't listed.
Ask D&R O'Fallon Concrete Company for a quote
Call before your house plans are final, so drains and radon features go in the right order.