ComfortCostGuide

Metro cost guide

St. Paul, Minnesota: HVAC Replacement Cost Calculator

Replacing an HVAC system in St. Paul typically runs $3,500 to $7,000 for a gas furnace and $4,000 to $7,500 for central air conditioning, installed. If you replace both at once, most St. Paul homeowners land between $7,500 and $13,000. Local labor rates sit about 14% above the national average, with HVAC technicians here earning around $35.57 an hour, so installation labor is a meaningful share of any quote.

Worked example

Take a 1,900-square-foot two-story home near Highland Park with an aging 80% gas furnace and a matched central AC unit sharing the same ductwork. Replacing both in one visit puts the job in the $7,500 to $13,000 range; a straightforward swap with existing ducts in good shape and no venting changes would land near the middle, roughly $9,500 to $10,500. Adding a high-efficiency condensing furnace, new PVC venting through the rim joist, or a difficult basement access pushes the same job toward the $13,000 end.

Frequently asked questions

How much does it cost to replace a furnace in St. Paul?

A gas furnace replacement in St. Paul generally costs $3,500 to $7,000 installed. Basic single-stage units in homes with usable existing ductwork and venting fall at the low end, while high-efficiency condensing models with new venting and larger or older houses push toward $7,000.

Do heat pumps work in St. Paul's winters?

St. Paul is in climate zone 6, one of the coldest zones in the country, so heat pumps here are usually installed as cold-climate models or paired with a gas furnace in a dual-fuel setup. Heat pump installations in St. Paul run $6,000 to $12,000, and the dual-fuel approach lets the furnace take over during deep cold snaps.

Why are HVAC quotes in St. Paul higher than the national average?

Labor in the St. Paul market runs about 14% above the national average, with local HVAC technicians earning roughly $35.57 per hour. Because a furnace or full-system replacement is a multi-day labor job for a crew, that wage difference shows up directly in your installed price.

Is a ductless mini split a good option for a St. Paul home?

Ductless mini splits cost $3,500 to $10,000 in St. Paul and make sense for additions, finished attics, or older homes with no ductwork. The low end covers a single-zone system for one room; multi-zone setups covering several rooms move toward $10,000.

Should I replace my AC and furnace at the same time?

If both units are near end of life, combining them costs $7,500 to $13,000 versus $3,500 to $7,000 and $4,000 to $7,500 done separately. You save on a second labor visit, and matched equipment tends to perform better than pairing a new condenser with an older blower.

Related cost guides