cost of concrete foundation per foot
1 Labor costs to pour and form concrete run somewhere around $3.50 to $7.00 per square foot. 2  One homeowner paid $11,000 for a crawl space for a 1,500 square foot home. 3  One customer in Texas received a quote for a 2,500 square foot foundation slab of about $20,000. One customer in Texas received a quote for a 2,500 square foot foundation slab of about $20,000. 2  A homeowner in Montana reports paying about $35,000 for a 30âx70â foundation with 9â high walls 8â thick. 3  ConcreteNetwork.com offers this free concrete cost calculator.