Solid foundations for homes, garages, and commercial buildings.
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A solid foundation is the most critical part of any building project in Wisconsin. Our deep frost line (48 to 60 inches) means footings must extend well below grade to prevent shifting and cracking. Find experienced foundation contractors in your city below.
Foundation work ranges from $8 to $20 per square foot depending on type and complexity. A typical residential foundation (1,000 to 1,500 sq ft) runs $8,000 to $30,000. Factors include depth (Wisconsin's frost line requires 48 to 60 inch footings), wall height, waterproofing, and soil conditions. Get a rough estimate with our cost calculator.
Wisconsin homes typically use one of three foundation types:
• Poured concrete walls: the most common for full basements. Strong, waterproof, and durable. • Concrete block (CMU): less common today but still found in older construction and rural areas. • Slab-on-grade: used for garages, additions, and some new construction. No basement, lower cost.
Your contractor should recommend the right type based on your soil conditions, water table, and building plans.
Wisconsin's frost depth (48 to 60 inches) is one of the deepest in the country. Footings that don't reach below the frost line will heave, crack, and fail. Waterproofing is also critical. Wisconsin's clay-heavy soils hold water against foundation walls, making exterior waterproofing and proper drainage essential. Read our winter concrete guide for more on frost depth and cold-weather concerns.
Browse concrete foundations contractors across all 49 Wisconsin cities.