Residential Services

Furnace Repair in Madison, WI

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A functioning furnace is a necessity in this state, especially since Wisconsin winter weather often lasts well into spring. That’s why our experienced heating contractors at Southport Plumbing, Heating, and Cooling offer furnace repair in Wisconsin for virtually every make and model. Our HVAC professionals know how to diagnose and fix a range of furnace problems, both big and small. Whether you’re dealing with a dirty filter or a complete system failure, you can count on our furnace repair techs for fast, warrantied repair at a reasonable price.

Heat pump maintenance in Madison and Greater Wisconsin with system performance check.

Signs Your Furnace Needs Repair

Once you know what’s wrong with your furnace, the first step is to determine whether a simple repair will solve the problem or an entire replacement is necessary. Loud noises, slow heating, and high energy bills are all signs of a malfunctioning system. Fortunately, our expert furnace technicians can repair everything from small issues like dirty filters and faulty pilot lights to severe airflow imbalances and cracked heat exchangers. Contact us today and get expert, free troubleshooting on your furnace issues.

Signs you need a furnace repair include:

  • Dirty air filters
  • Restricted air flow in vents
  • Pilot control problems
  • Frequent cycling
  • Strange smells
  • Strange noises
  • Dirt and dust build-up
  • Carbon monoxide detected
  • The burner flame is yellow
  • Short cycles
  • Leaks around the unit

Common Furnace Symptoms We Fix

  • Short cycling, strange noises, cold spots — diagnostics + targeted repairs.
  • High bills or weak airflow — check filters, ducts, and blower performance; consider duct sealing.
  • Frequent breakdowns — we’ll advise whether a replacement is more cost-effective.

What to Expect from Our Madison Furnace Repair Team

Our Madison furnace technicians start every visit with a quick conversation about what you’re seeing, from strange smells to rising energy bills. Then we get right to work diagnosing the problem so you know exactly what’s going on with your system.

Here’s how a typical repair visit works:

  • Arrival and safety check: We arrive during your scheduled window, confirm the issue, and verify that your gas, electrical, and venting connections are safe.
  • Up-front options: After testing your furnace, we explain what we found in plain language and share repair options with pricing before any work begins.
  • Focused repair work: Your technician starts the approved repair and keeps you updated as the job moves along.
  • Clean-up and next steps: We tidy the work area, review what was fixed, and answer questions about filter changes, thermostat settings, and future maintenance.

Common Furnace Problems

The severity of the problem and the age of your furnace will determine whether or not your home or business requires a new furnace installation. In many cases, our experienced heating contractors can repair or replace broken furnace parts. However, if your unit is over 12 years old, it may be time to consider installing a new furnace. The good news is that our Wisconsin furnace techs will do everything in our power to save your system and help your furnace function at peak efficiency for as long as possible.

Common furnace problems include:

  • Imbalanced airflow: If one room in your home is warm while others are cold, your furnace might have imbalanced airflow. That’s why, instead of trying to fix this issue yourself, it is better to call an experienced professional.
  • Leaky ducts: Broken and cracked ductwork could cause warm air to leak out of your home. Not only is this a waste of money, but it also forces your furnace to work overtime to compensate for the lost heat, thereby driving up your energy costs.
  • Faulty pilot light: Your furnace’s pilot light can fail for a number of reasons. It could be a damaged thermocouple, clogged gas pipes, or even a draft. Fixing the pilot light could require a new part or all new piping.
  • Broken blower motor: While replacing your furnace’s blower motor may sound like a simple process, it involves more than just swapping out a single part.
  • Cracked Heat Exchanger: A cracked heat exchanger reduces your furnace’s efficiency and allows dangerous gases, such as carbon monoxide, into your home.
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Why Hire Southport Plumbing, Heating and Cooling for Heater Repair in Madison and Southeast Wisconsin

Thanks to our 155-strong team of professional HVAC contractors and an ever-expanding fleet of service vehicles, Southport Plumbing, Heating and Cooling offers fast furnace repairs throughout Southeastern Wisconsin. Call today to learn about available specials and financing options with approved credit from our licensed and insured furnace techs. Find out why Southport has an A+ rating with the Better Business Bureau for yourself.

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

$259

Furnace + Plumbing Inspection Bundle 
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Read About Our Customers’ Recent Experiences

Teresa Kelly
2 days ago
Nate was just outstanding! So fast! So knowledgeable! So polite! We can’t wait to do business again:)
Mike Glatkowski
2 days ago
Alex is a great technician.
Andrea Hyde
3 days ago
Excellent work in installing our furnace! Finished in just three hours, and it’s running wonderfully. Walked us all through our new thermostat and how to install and use the app. Such polite technicians and kept our home tidy in the process. Would recommend Southport to anyone.
Sue N (SueN313)
3 days ago
Luke was on time, thorough, professional, and keeps you up-to-date with what’s being done. We have the maintenance program so we pay a small fee monthly and it covers the heating and ac maintenance yearly. Love this program and it works great in retirement
Jody Davis
4 days ago
Southport rocks it every single time! They hire the most knowlegeable , kind, polite, professional people!!! Another fantastic service visit
Brian Gleichauf
4 days ago
Adam was great, very professional and friendly and provided me with all the information I needed to get an estimate for mini -splits.
Cathy Johnson
4 days ago
Great service Polite and knowledgeable young man. Explanation that could be understood as to what was needed to be done with pricing for different options.
Marilyn Hammes
4 days ago
Thank You Riley and Southport Plumbing for a quick response to a very clogged toilet.
Riley arrived within minutes of the scheduled appointment and completed the work quickly and efficiently. He answered all my curious questions politely and cleaned the area completely after the work.
Lesson learned… don’t dump your cleaning water down the toilet with the sponges and rags you used!!!
Eric Hensley
5 days ago
I had a boiler system installed by Southport and everyone I interacted with was fantastic! After several quotes I selected them because I thought the company had a lot of integrity. I first got a quote from Caleb who was most professional, walking me through all the options they had for me and being very reasonable on the pricing. They scheduled the installation within a week and, on that day, the technicians Ryan and Jacob were excellent and very hard workers. I appreciated that they were very careful inside the house, putting shoe protectors while upstairs and overall being very respectful. They stayed until the job was done and my heat was restored. I would highly recommend Southport if you need a new boiler installation or and work or maintenance on your boiler, home heat, or water heating system.
Dave Frook
6 days ago
Justin did a great job explaining everything to us. He is very knowledgeable.
Mario Maritato
6 days ago
Timely, professional and friendly service.
David Geertsen
6 days ago
Southport did a good job, Justin was professional, thorough, did a great job !!
Darlene Severson
7 days ago
Thank you for sending Andrew Wenk to test our furnace. He could answer our questions clearly and tested all the important components and measured various pressures, temperatures, speeds, and other technical factors. He gave us 3 estimates for replacing parts that are needed due to age of the furnace. Andrew was pleasant and respectful to us.
JULIE GRIMM
1 week ago
Great technician. Grest communication and friendly. Jacob.
chris kwong
1 week ago
Jacob came over to install a new heat pump and do an annual HVAC maintenance check for winter. Appreciate how Jacob was friendly, communicative on progress/steps/etc, and open for questions!
Jackson ellis
1 week ago
Vincent came and assessed my furnace and was very helpful with diagnosing problems with it. Would definitely recommend them for any needs
Jackie Lambert
1 week ago
Fast and friendly. Thanks for getting my heat back on!
Karen Parrillo
1 week ago
Blake was very courteous and efficient in disconnecting our old dryer gas supply. We appreciate the quick response.