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.

$50 Off

Plumbing Repair 

+ Free Water Heater Flush

Offer cannot be combined with any other promotions, discounts, or special offers. Terms and conditions may apply.
Expires: 8/31/2026
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Read About Our Customers’ Recent Experiences

Poonam Patel
4 days ago
Caleb was professional and super helpful. He expediated a plan for our leak in an extremely timely manner. The techs were efficient and explained things well. Highly recommend!
Nancy Patin
4 days ago
Wow , my service was amazing. Ryan , Quinn and Oliver were the best. They work so hard and are so respectful. The salesperson Caleb was great. He made everything happen so smoothly. Southport was the way to go. I’m a very happy customer.
Paul Fennema
5 days ago
They arrived as scheduled. Took care of maintenance needs. Did a great evaluation of the system and presented options for system needs. Very personable guys. Very pleased with their service.
Sarah Semrad
1 week ago
Ryan, Quinn, and Oliver were wonderful. They made sure I understood everything that was happening and I am very happy with the product.
Susan Donovan
1 week ago
Nice and friendly took care of my AC tuneup in a timely matter and we’re on time
Jacob Hardy
2 weeks ago
Every step was very professional, informative, and down to earth. The team was fast and clean. They got me up and running in an extremely timely manner. I highly recommend this company!
Nancy Patin
2 weeks ago
Wow , my service was amazing. Ryan , Quinn and Oliver were the best. They work so hard and are so respectful. The salesperson Caleb was great. He made everything happen so smoothly. Southport was the way to go. I’m a very happy customer.
Jaclyn Wolff
2 weeks ago
Travis was awesome, I called on Tuesday afternoon and the issue was fixed by 11am Wednesday morning.
Just Me
2 weeks ago
From the time my call to replace my water heater was answered to the time their service van pulled away Southport was responsive and courteous. Henry and Riley were fantastic! They explained every step and answered every question we had. I enthusiastically recommend Southport.
Nancy Wedge
3 weeks ago
Had an emergency and they were able to get there within a half hour on a Friday night!
LL K
3 weeks ago
Andrew & Grant did an excellent job installing our water softener system, they were very efficient and the process to book through sales was excellent! I highly recommend working with Southport for all your heating and cooling needs!!
Courtney B
3 weeks ago
Southport was super easy to work with and get appointments scheduled. We have used them multiple times and each time they give fair quotes, good information, timely, and professional. Everything they have helped with has not had any issues and is done with great quality of work. Highly recommend them for your plumbing needs.
JENNIFER MCKAY
3 weeks ago
My experience was great. I appreciate the estimate and how it was explained to me.
William Raciti
3 weeks ago
Very professional and clean.
Jack
3 weeks ago
Very quick and professional installation of a new AC unit. Worked with some of my personal reqests which made for a great install.
Brian Childers
3 weeks ago
I have a Shield maintenance agreement with Southport Plumbing Heading and Cooling.

The value for the plan is fantastic! They come out and help maintain your plumbing, heating and cooling systems. Jacob from the HVAC side has come out to my home and has done an excellent job of keeping me aware of what is working well, and what I may need to keep an eye on.

Justan and Nathan from the plumbing side have also come out to my house and did the regular yearly maintenance. They too, do an awesome job of keeping me updated on how the plumbing is within my house.

I also was alerted to the battery being bad for my sump pump backup system and Justan and Nathan installed a new sump pump and a new backup system as well. The timing was impeccable as we faced a power loss for around 24 hours, and the battery was fully charged and the backup sump pump worked while we didn't have power! It was better paying for the backup system than a repair bill for a flooded basement.

To round it out, the office staff, Sarah did a great job helping me coordinate not only the visits for the maintenance, but also helped facilitate the installation of the plumbing work.

They keep giving great reasons why I'm a long term Southport Plumbing, Heating & Cooling customer!

Thank you!
Kate Cahill
3 weeks ago
Highly recommend for your HVAC needs! The salesman that came out to do the quote was professional and informative. The installers were incredible! Everyone was on time and on budget. Highly recommend! 10 out of 10 stars
sonam raptenpa
3 weeks ago
I am very satisfied with their service and products, they really did good job for installing new A/C this hot summer. The cost was reasonable and I am very happy with it, so thank you so much

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!