If you're budgeting for a new driveway in St. Charles County, here's the honest answer up front: most residential concrete driveways here run $6 to $12 per square foot installed, which puts a typical two-car driveway (about 600–750 sq ft) between $4,500 and $9,000. Where you land in that range depends on a handful of factors you can actually control.
What's included in a professional driveway quote
A legitimate quote from a concrete driveway contractor should cover the complete job — not just the concrete itself:
- Tear-out and haul-away of the old driveway (typically $2–$6/sq ft of the total if you have existing concrete — see our removal & demolition service)
- Excavation and grading so water runs away from your garage and foundation
- Compacted gravel base — the single most important ingredient in a driveway that doesn't settle
- Forms, reinforcement (rebar or wire mesh), and any required city permit
- 4 inches of air-entrained concrete (5–6 inches where trucks or RVs will park)
- Finishing, control joints, curing, and sealing
What moves the price up or down
Thickness and reinforcement. A standard 4-inch slab with wire mesh is the baseline. Going to 5–6 inches with rebar for heavy vehicles adds roughly $1–$2 per square foot and is worth every penny if you park a truck, boat, or camper.
Finish. A broom finish is standard. Upgrading to exposed aggregate typically adds $2–$4/sq ft, and full stamped and colored concrete runs $12–$20/sq ft total — still usually cheaper than pavers.
Access and site conditions. Tight access that requires smaller equipment, steep grades, poor soil that needs extra base, or tree roots all add labor time.
Season. Concrete pours best in moderate temperatures. Scheduling in the spring-to-fall window keeps costs predictable; winter pours are possible but require cold-weather measures.
Concrete vs. asphalt: the long-run math
Asphalt is cheaper on day one, but in Missouri's freeze-thaw climate it needs resealing every 2–3 years and typically lasts 15–20 years. A properly built concrete driveway lasts 30–40 years with a fraction of the maintenance. Over the life of the surface, concrete usually wins. We break this down fully in our concrete vs. asphalt comparison.
How to keep your quote honest
Get the scope in writing: thickness, reinforcement type, base depth, joint plan, and cure time before vehicles. If a bid is dramatically cheaper than the others, the difference is almost always hiding in the base prep or thickness — the two things you can't see after the pour.
Want a real number for your driveway? We measure, walk you through the options, and give you a firm written quote — free, no pressure. Request your free estimate.