Quick Answer
A poured concrete foundation costs $100 to $250 per linear foot installed, with footings below the 42-inch frost line included in any code-legal northern Illinois quote.
Foundation pricing is driven by wall height, soil, and access far more than by length alone. B.G. Concrete pours footings and foundation walls for additions, garages, and new builds across the suburbs to the depth northern Illinois code requires.
Poured concrete foundation cost per linear foot
A poured foundation wall typically runs $100 to $250 per linear foot installed, with the range set by wall height, thickness, and reinforcement. Footings, excavation, and access all factor into the installed total.
What a foundation quote must include
r/Construction veterans stress that footing depth is not optional in a cold climate. Any code-legal quote in northern Illinois places footings below the 42-inch frost line, with the reinforcement and drainage spelled out — the items a low bid tends to leave vague.
Why foundation cost varies in the Chicago suburbs
Clay soil, high water tables, and tight lot access raise excavation and reinforcement costs, while engineered designs add up front but prevent settlement. Getting depth and drainage right the first time is far cheaper than correcting a moving foundation later.
Related Questions
How thick should a concrete driveway be?
Four inches for cars and six inches for trucks, over a compacted base. Read more about concrete thickness.
Why does concrete crack?
Shrinkage, freeze-thaw, and settlement cause cracks; control joints and reinforcement manage them. Read more about why concrete cracks.
How long does concrete take to cure?
Walkable in 24 to 48 hours, full strength at 28 days. Read more about cure time.
B.G. Concrete pours concrete across Wood Dale and the NW Chicago suburbs — see our foundation wall cost guide or call 630-595-1518 for a written figure.