AC Installation Cost in Madison 2026
AC Installation in Madison costs between $3,802 and $11,407 in 2026, with the average around $6,654. Madison pricing runs roughly at the US national average. Installation of a new central air conditioner with matched outdoor condenser and indoor evaporator coil, refrigerant charge, and thermostat. Includes electrical connection and a startup test.
What ac installation includes in Madison
Installation of a new central air conditioner with matched outdoor condenser and indoor evaporator coil, refrigerant charge, and thermostat. Includes electrical connection and a startup test.
Typical time on site: 1 to 2 days. Local labor rate: $26/hour for an experienced hvac pro.
What changes the price of ac installation in Madison
- Cooling capacity in tons
- SEER efficiency rating
- Coil and line set condition
- Electrical and pad work
- Removal of old unit
A ac installation 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 hvac
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 ac installation
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 HVAC
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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