Oconomowoc’s name is often translated as “where the waters meet,” and the city really does sit between the Oconomowoc River, Lac La Belle, and Fowler Lake. That setting brought Milwaukee and Chicago families here for summer estates more than a century ago. Today the housing ranges widely, with older homes near downtown, lake houses that were once seasonal cottages, and newer subdivisions on the edges of town. Southport handles heating, cooling, and plumbing for all of them.
Reach out today to get service scheduled at your Oconomowoc home.

Heating & Cooling
Heating needs in Oconomowoc depend a lot on the house. Lake homes that started as summer cottages were often expanded over the years, so some rooms end up far from the furnace or on a separate system entirely. Older homes near downtown may still run on boilers and radiators, while newer homes usually have high-efficiency furnaces and central air. Summers here bring humid stretches off the water, which pushes AC systems to run long hours.
- Rooms that never warm up in January often point to a furnace that is undersized, aging or fighting poor airflow.
- Homes with radiators or in-floor heat can keep that comfort with boiler repair or replacement.
- A sunroom, lake-facing addition or finished lower level is often easiest to heat and cool with a ductless mini split.
- Weak cooling on humid July afternoons is usually worth a look from our air conditioning technicians before the next heat wave.
- Homeowners who want to cut gas use can pair a furnace with a heat pump for milder days.
Book a heating or cooling visit before your system starts giving you trouble.
Plumbing, Water Heaters & Water Treatment
Like most of Waukesha County, Oconomowoc draws its water from groundwater wells, and that water tends to be hard. Mineral scale builds up inside water heaters, fixtures and supply lines, which shortens equipment life and leaves spots on glass and tile. Some lake homes outside city limits run on private wells, where iron and sediment can add to the hardness problem.
- Hard water and well water problems are often solved with water treatment, including softeners and filtration.
- Rumbling tanks or lukewarm showers usually mean scale has built up and the water heater needs service or replacement.
- Older drain lines under homes near downtown are prone to buildup and root intrusion, which drain cleaning can clear.
- Leaks, low pressure and fixture problems fall under our general plumbing service.
Schedule plumbing service when you first notice a slow drain or a change in your hot water.
Why Choose Southport Plumbing, Heating & Cooling?
- Our Caledonia location serves Oconomowoc and the rest of western Waukesha County, along with nearby Waukesha.
- NATE-certified HVAC technicians work out of trucks stocked with common parts, so many repairs are done in one trip.
- You get upfront pricing before work begins.
- Southport has an A+ BBB rating and more than 2,000 local reviews.
- Repairs come with a 100% satisfaction guarantee and 30-day coverage on parts and labor.
Get in touch today and let a team that works on Lake Country homes take care of yours.

$259
Furnace + Plumbing Inspection Bundle
