ComfortCostGuide

State cost guide

Wisconsin: HVAC Replacement Cost Calculator

Most Wisconsin homeowners pay between $3,500 and $7,000 to replace a gas furnace, or $7,500 to $13,000 for a matched furnace-and-air-conditioner system installed together. Standalone central AC runs $4,000 to $7,500, and heat pumps land between $6,000 and $12,000 installed. Labor here runs slightly above the national baseline, with an index of 1.04 and an average HVAC technician wage of $32.41 per hour.

Worked example

Take a 2,000-square-foot two-story house outside Madison with a 20-year-old gas furnace and an AC condenser of about the same age. Because the blower and coil have to be matched anyway, most homeowners in this situation replace both at once, which puts them in the $7,500 to $13,000 range. A mid-efficiency furnace and a standard-efficiency AC using the existing ductwork and line set would land near the middle of that range, closer to $10,000; pushing to a high-efficiency condensing furnace, adding a new coil and pad, or dealing with tight basement clearances moves the quote toward the $13,000 end.

Frequently asked questions

How much does it cost to replace a furnace in Wisconsin?

A gas furnace replacement in Wisconsin typically runs $3,500 to $7,000 installed. The low end reflects a straightforward swap of a standard-efficiency unit in an accessible basement, while the high end covers high-efficiency condensing models that need new venting and a condensate drain.

Do heat pumps work in Wisconsin's climate?

Wisconsin sits in climate zone 6, one of the coldest zones in the country, so heat pumps here are usually cold-climate models and are often paired with a gas furnace or electric backup for the deepest cold snaps. Installed costs range from $6,000 to $12,000, with dual-fuel setups sitting at the higher end because two pieces of equipment are involved.

Is it cheaper to replace the furnace and AC at the same time?

Usually yes. A combined furnace and AC replacement in Wisconsin costs $7,500 to $13,000, which is less than the $3,500-$7,000 furnace and $4,000-$7,500 AC ranges added together, because the crew makes one trip and shares labor on the indoor coil, electrical, and startup.

Why does HVAC labor cost more in Wisconsin than some states?

Wisconsin's labor index is 1.04, meaning installation labor runs about 4 percent above the national baseline, and the average HVAC technician wage is $32.41 per hour. Demand also spikes in fall and midwinter, so scheduling a replacement in a shoulder season can help you get more competitive bids.

What makes a ductless mini split a good option in Wisconsin homes?

Mini splits run $3,500 to $10,000 installed and make sense for older Wisconsin homes with no ductwork, finished attics, additions, or three-season porches. A single-zone unit sits near the bottom of that range, while a multi-zone system covering several rooms approaches $10,000.

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