Concrete Slab Cost in Madison 2026
Concrete Slab in Madison costs between $1,711 and $7,605 in 2026, with the average around $3,802. Madison pricing runs roughly at the US national average. Pouring of a concrete slab for a shed, garage, or addition with excavation, a gravel base, vapor barrier, wire mesh, and a finished surface. Includes forms and curing.
What concrete slab includes in Madison
Pouring of a concrete slab for a shed, garage, or addition with excavation, a gravel base, vapor barrier, wire mesh, and a finished surface. Includes forms and curing.
Typical time on site: 1 to 3 days. Local labor rate: $23/hour for an experienced concrete pro.
What changes the price of concrete slab in Madison
- Slab square footage
- Slab thickness
- Vapor barrier and mesh
- Excavation and base
- Site access and grading
A concrete slab quote priced off statewide averages will be off by 10 to 20 percent for Madison, because the metro has its own labor pool, material delivery distances, and permit timelines.
Madison climate and demand for concrete
Cold continental climate with heavy winter snow loads and deep frost penetration, so foundations must be set below the roughly 4-foot frost line and roofs engineered for significant snow accumulation.
Madison permits for concrete slab
Building department: City of Madison Building Inspection Division (Dept. of Planning & Community and Economic Development). https://www.cityofmadison.com/dpced/bi/
Typical permit cost: $150 - $2,500 residential. Inspection time: 10-20 business days. Madison rule: Wisconsin requires a state Dwelling Contractor Qualifier certification and a Dwelling Contractor registration from the Dept. of Safety and Professional Services (DSPS) before pulling a one- or two-family permit; a state seal fee also applies to plan review.
Wisconsin sales tax and licensing for Concrete
Wisconsin sales tax: 5% + 0.5% county (~5.4% combined avg). Real property labor exempt. County tax of 0.5% in most counties.
State license: Wisconsin Department of Safety and Professional Services (DSPS), required: Dwelling Contractor Certification $25 + Dwelling Contractor Qualifier $30.
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