Heating Repair in Caledonia & Milwaukee
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When wind comes off Lake Michigan in January, a Caledonia home can lose heat fast once the furnace or boiler stops running. Southport’s NATE-certified technicians repair gas and electric furnaces, boilers and heat pumps, and our trucks carry a deep stock of parts so most repairs get finished on the first visit.
Call 262-898-3000 or book online to schedule heating repair in Caledonia.

Signs Your Heating System Needs Repair
Heating problems rarely fix themselves, and small issues tend to turn into no-heat calls on the coldest night of the week. Call for a repair visit if you notice any of these.
- Cool air from the vents while the thermostat calls for heat often points to an ignition, flame sensor, or gas valve problem.
- Short cycling, where the system turns on and off every few minutes, wears out parts and leaves rooms uneven.
- Banging, squealing, or rattling usually means a loose part, a failing blower motor, or a delayed ignition.
- Cold radiators or baseboards on a boiler system can signal air in the lines, a failed circulator pump, or a zone valve that is stuck closed.
- A burning or rotten egg smell needs immediate attention, and if you smell gas, leave the home and call your gas utility before calling us.
Furnace, Boiler and Heat Pump Repair Services
A good repair starts with finding the actual cause. Replacing a part that failed because of a deeper problem only buys a few weeks. Our technicians test the system under operation, check gas pressure, electrical components, venting and airflow, and look at how the equipment has been running before recommending anything.
Once we know what is wrong, you get a clear explanation and an upfront price before any work begins. Nothing gets replaced without your approval. Because each truck is stocked like a small warehouse, our technicians carry the igniters, flame sensors, inducer motors, capacitors, pressure switches, and control boards that fail most often, which cuts down on second trips while you wait for parts.
Caledonia’s housing ranges from mid-century ranches to newer subdivisions, and nearby Racine and Milwaukee have plenty of older homes heated by cast iron radiators. Our team works on all of it. That includes high-efficiency condensing furnaces, older standard-efficiency units, hot water and steam boilers, and heat pumps that pair with a gas furnace as backup.
Before leaving, the technician runs the system through a full heating cycle, confirms safe operation, and walks you through what was fixed. Repairs come with 30-day coverage on parts and labor.
Furnace Repair
Common furnace repairs include failed igniters, dirty flame sensors, clogged condensate lines on high-efficiency units, worn blower motors, and faulty pressure switches. A cracked heat exchanger is a safety issue, and we will show you what we found.
Boiler Repair
Boiler repairs often involve circulator pumps, zone valves, expansion tanks, pressure relief valves and low-water cutoffs. We also bleed air from the system and check water pressure so heat reaches every room.
Heat Pump Repair
Heat pump problems include frozen outdoor coils, defrost control failures, low refrigerant and reversing valve issues. We also check the backup heat source so the home stays warm on the coldest days.
Why Choose Southport for Heating Repair in Caledonia?
Southport holds an A+ rating with the BBB and more than 2,000 local reviews. Every repair is backed by our 100% satisfaction guarantee and 30-day coverage on parts and labor. Members of the Shield Maintenance Plan get priority scheduling and 15% off repairs.
No heat or a system acting up? Call 262-898-3000 to book a Caledonia heating repair.

$259
Furnace + Plumbing Inspection Bundle 
