Boiler Replacement Cost in Milwaukee, Wisconsin

Milwaukee Weather and HVAC Load

NOAA's 1991-2020 climate normals put Milwaukee at 6,792 heating degree days and 727 cooling degree days per year. Heating is the bigger job here, and furnaces and heat pumps in Milwaukee put in far more hours than the air conditioner. Count on roughly 134 nights below 32°F and 17 afternoons past 90°F in a typical year. Snowfall averages about 40 inches. For a 2,000 sq ft house, this climate points to a heating load somewhere near 70,000 BTU/h. Treat that as a starting number. A Manual J calculation will move it up or down based on insulation and windows.

Milwaukee Housing Stock

The median Milwaukee home dates to 1952, according to the Census ACS. That makes the typical house about 74 years old. Many houses that age were built with hot-water or steam heat, and plenty still run cast-iron boilers and radiators. Milwaukee has roughly 96,000 owner-occupied homes, or 41.5% of households. Homes here have a median value of $172,000 and households a median income of $51,888. Those two numbers drive the labor adjustment in our estimate.

Milwaukee County had 19 hail days and 19 days with damaging thunderstorm winds from 2020 through 2025, according to NOAA storm records. The largest hail reported was 1.75 inches across. Hail flattens the thin aluminum fins on condenser coils and cuts airflow. After a big storm, take a look at the outdoor unit; homeowners insurance often covers the damage.

When Replacement Makes Sense

• Some radiators stay cold
• The pilot or ignition keeps failing
• The boiler is 20 to 30 years old or more
• Leaks, rust, or pressure that keeps dropping

What Moves the Price

• Pumps, zone valves and the piping around the boiler
• Condensing or non-condensing boiler
• Fuel type: gas, oil or propane
• A combi boiler that also makes your hot water
• A new chimney liner or venting

For Milwaukee we kept the national figures close to unchanged, based on local income, home values and climate-based equipment sizing. Get at least three written quotes; real bids can land outside this range.

What the Quote Should Cover

• Startup and safety tests
• Venting and fuel hookups
• The new boiler and the piping around it
• Flushing and refilling the system
• Removing the old boiler

Wisconsin Permits, Efficiency Rules and Rebates

Wisconsin falls in the DOE's North region. New split central air conditioners must meet at least 13.4 SEER2, and heat pumps sold anywhere in the U.S. need 14.3 SEER2 and 7.5 HSPF2. Expect the contractor to pull a mechanical permit for a replacement job in Milwaukee. If a bidder suggests skipping it, move on. Also ask for a Wisconsin license or registration number and proof of insurance. The federal 25C tax credit ended for equipment installed after December 31, 2025, so incentives now come mostly from utilities and state programs. Check your electric and gas utility's rebate page before you pick equipment.

Before You Hire

• Ask for a heat-loss calculation. A lot of old boilers are much bigger than the house needs.
• A combi boiler frees up space and replaces your water heater.
• For a steam system, hire a contractor who works on steam regularly.

Boiler Replacement Questions from Milwaukee Homeowners

More HVAC Prices in Milwaukee

• Furnace Replacement in Milwaukee
• Furnace Repair in Milwaukee
• AC Installation in Milwaukee
• AC Repair in Milwaukee
• Heat Pump Installation in Milwaukee
• Heat Pump Repair in Milwaukee
• HVAC System Replacement in Milwaukee
• Ductless Mini-Split Installation in Milwaukee
• Emergency HVAC Repair in Milwaukee
• HVAC Tune-Up & Maintenance in Milwaukee
• Air Duct Cleaning in Milwaukee

Boiler Replacement Near Milwaukee

• Madison $6,800 to $15,500
• Green Bay $6,100 to $13,800
• Kenosha $6,000 to $13,700
• Racine $5,700 to $13,000