Plumbing, Heating & Air Conditioning in Marathon

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Our service teams are a familiar presence navigating the steep grades and scenic overlooks that define the Marathon landscape. We recognize that the geography of the Big Rib River valley creates unique atmospheric demands, from the dense fog and humidity of the lowlands to the exposed, wind-swept ridges that test the insulation of your home. Whether we are parked near the local schools or assisting a homeowner along Highway 107, we bring a specialized understanding of how the Marathon County climate impacts local infrastructure. We have spent years fine-tuning the mechanical systems of this community, ensuring that families stay warm during the sub-zero deep freezes and refreshed during the peak of summer.

Get in touch with our team today to ensure your household systems are ready for the upcoming season.

Plumbing Services

Marathon residents often deal with unique water pressure challenges and mineral-rich groundwater that can lead to premature pipe wear. To keep your fixtures in top shape and your basement dry, we offer:

  • High-performance water softening system installation to neutralize the heavy mineral content found in local aquifers.
  • Professional drain cleaning to clear out years of buildup and prevent catastrophic backups.
  • Modern water heater replacement for energy-efficient, consistent hot water.
  • Reliable sump pumps to protect your foundation from the heavy spring runoff.
  • Advanced leak detection to pinpoint hidden drips behind walls or under slabs.
  • Kitchen and utility help, including garbage disposal repair and gas lines for new appliances.
  • Rapid frozen pipe repair to restore your water supply during the most brutal cold snaps.
  • Robust commercial plumbing for local businesses and agricultural operations.

Connect with our plumbers in Marathon today to maintain a high-functioning home.

Air Conditioning

When the summer heat settles over the valley, your home should be a sanctuary of cool air. We specialize in keeping Marathon households comfortable with efficient cooling solutions.

  • Fast AC repair for all major equipment brands to restore your comfort quickly.
  • Quality central AC installation designed for your home’s specific layout.
  • Seasonal AC maintenance to lower your energy bills and prevent mid-season breakdowns.
  • Specialized ductless AC service for targeted cooling in specific rooms.

Call our cooling team to schedule your seasonal tune-up today.

Heating Solutions

Winter in Marathon can be relentless, making a dependable heating system a necessity for your family’s safety. We provide robust heating solutions to keep the Wisconsin winter at bay.

  • Emergency furnace repair to restore your heat source when the mercury drops.
  • Modern heat pump solutions for high-efficiency temperature control throughout the year.
  • Specialized boiler repair and radiant heating installation for cozy, even warmth.
  • Intelligent thermostat installation to put precision climate control at your fingertips.
  • Comprehensive HVAC inspections to identify and resolve small issues before they become expensive failures.

Protect your home this winter by scheduling a heating check-up with our professionals.

Indoor Air Quality

Marathon homes are often sealed tight against the winter wind, which can lead to trapped pollutants and stagnant air. We offer the technology needed to keep your indoor environment healthy.

  • Deep duct cleaning to strip away allergens, dust, and dander.
  • Whole-home air purifiers and medical-grade HEPA filters for cleaner breathing.
  • Balanced moisture with whole-house dehumidifiers and whole-house humidifiers.

Start breathing easier by contacting our air quality specialists now.

Schedule Service TODAY In Minutes!

Why Choose Southport Plumbing, Heating & Cooling?

We have spent years building a reputation in Marathon for being the team that understands the specific needs of hilltop and valley homes.

  • Local technicians who are familiar with the specific building codes and challenges of Marathon County.
  • Service trucks that arrive fully equipped to handle most repairs on the first visit.
  • Honest, transparent pricing with no hidden fees or surprise charges.
  • A deep respect for your home and your schedule.

Partner with the technicians that Marathon neighbors rely on for total home comfort.

Southport logo with blue 'SOUTHPORT' wordmark and orange 'PLUMBING • HEATING • COOLING' tagline.

$150 Off

Water Heater Install

when you trade in your old one

Offer cannot be combined with any other promotions, discounts, or special offers. Terms and conditions may apply.
Expires: 6/30/2026
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Read About Our Customers’ Recent Experiences

Christine Goins
2 days ago
Phil was outstanding! He diagnosed a problem that several other techs from a different company couldn’t figure out. He was so friendly and took the time to explain everything clearly. Highly recommend Phil from Southport!
Karen Odegaard
2 days ago
Ryan and Oliver did a great job on our A/C installation—they were very professional and knowledgeable. We are looking forward to using our new A/C!
Linda Rusch
2 days ago
The work was done by 2 very professional gentlemen . They finished the installation early and cleaned up everything. They were great.
Jessica Mueller
4 days ago
Fast, educational, friendly and understanding.
Kayla radel
4 days ago
Justan was very professional and thorough. He did a great job explaining all the nuances of plumbing while he did my check up. Now we can have piece of mind and prepare for expenses down the road. Would recommend!!
Lars Jorgensen
5 days ago
Great experience on updating our HVAC systems to heat pumps/backup furnaces.
Ryan, Oliver, Andrew and Jacob (all installers for Southport) are wonderful, competent, and delightful young folks, who gave great service doing the physical upgrade of 2 older heat/ac systems.

I highly recommend Southport for your future HVAC upgrades. All the folks from the person doing the bids (Adam) to Manager (Jackson) to all the installers, are first class, professional and proud of where they work and what they do.
Elena Van Meter
5 days ago
Very professional. Fixed a difficult problem for me! Thank you.
Amber Tenpas
6 days ago
Losing AC in hot weather is never fun, but Southport made the whole process as painless as possible. They were quick to respond, easy to work with, and got everything moving fast when we really needed it.

From the initial quote to the installation of our new AC and furnace, everyone was friendly, knowledgeable, and professional. The communication was great, the work was done efficiently, and everything went smoothly.

We're extremely happy with the result and wouldn't hesitate to recommend them to anyone looking for HVAC work.
James Van Thiel
6 days ago
Got a furnace replacement and a/c unit install. Both work great. The hvac techs worked very hard but they were not so thrilled to be doing a full install on a friday. they made it clear by complaining within earshot for the whole 7 hours. So maybe consider not scheduling with them on a Friday and it may be a better experience for you. 5 stars
Susan Brydges
1 week ago
I purchased my furnace from Southport and needed service when my AC went out during a storm. Andrew,my service tech was fantastic! He explained everything, got the parts the same day, and had me up and running in no time at all! At his recommendation, I also purchased a surge protector and maintenance agreement so I can rest easier during storms. Thank you Andrew!!
Donald Cress
2 weeks ago
Very professional, very helpful, very competent
Lauretta McCoy
2 weeks ago
Wonderful experience. The installers were friendly and knowledgeable. Glad I chose Southport!
Michael Smith
2 weeks ago
Solid team , from start to finish the professional team know how to showcase products, services needed to get you going. I was very pleased with the entire 5 stars and would recommend them to anyone in the area
Dylan Gray
2 weeks ago
I was referred to Southport by a co-worker. Their staff is super friendly and informed. The sales manager Nate was reasonable to work with. You can probably save a few hundred bucks going with a smaller company with less overhead, but I think the peace of mind that comes along while working with an established company like Southport, is much more important. They got me booked for an instilation appointment within two days of signing a contract! Their technicians were polite and did the best they could at keeping my carpeted basement clear of mud, considering the first few hours they were there was during a rainstorm. Whatever mess they made they cleaned up. The installation took longer then expected (about 10 hours) but there was a lot of work to be done, and the technician thanked me for my patience. He said it's nice to be able to take their time and make sure everything is installed perfectly! All and all, I had a positive experience, and highly recommend using Southport. Friendly and fast service at fair price!
Joe Pangburn
2 weeks ago
Vincent did a great job. Very informative. Kept me informed on every turn. Very conscientious and quality work. I'd highly recommend them and Vincent
Rob Lambert
3 weeks ago
Jacob arrived on time. He was both professional and polite. Friendly as well. Answered all my questions in detail. Great tech, great business.
Mike Meid
3 weeks ago
Justan and Luke did a great job on replacing our utility laundry sink and replacing our compression water valves to 1/4 turn valves. They involved us in every step of the process to make sure they were doing it exactly as we wanted it done. Friendly, professional and skilled at what they do!
Irene Eugenis
3 weeks ago
Your Tech VINCENT went ABOVE & BEYOND to repair our central air. He spent 8 hrs going up and down 21 stairs each time. THANK YOU for having such an AMAZING , DEDICATED young man

Schedule Service For Your Home Or Business Today!

Are you looking for great HVAC and plumbing services? Our Southport team serves you with quality plumbing, heating and cooling services in Wausau and the surrounding areas. Contact us today!