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.

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Read About Our Customers’ Recent Experiences

Denise Stanford
3 days ago
Southport was extremely helpful and had an appointment the day after I called to inquire about their maintenance plans.

Luke was great. He explained what he found during routine furnace maintenance, things that were working well and things to watch for in the future. Best experience I have had in a long time.
Karyn S
3 days ago
I had a wonderful experience with Southport! Justin and Phil were both fantastic to work with. Justin was incredibly friendly, knowledgeable, and helpful throughout the entire process. He made everything easy and stress-free and was a pleasure to work with!
Phil was equally wonderful! He was professional and thorough. I really appreciated his attention to detail and the care he put into his work. Both Justin and Phil went above and beyond to provide excellent customer service.
I highly recommend Southport and especially Justin and Phil! Thank you both for such a positive experience!
Jim Sheehan
4 days ago
Southport’s Technician , Phil Lloyd, is a true asset to his organization! My wife, Karyn and I have had many contractors come through our house over the years and I would put Southport at the very top of our service partners. They are knowledgeable, reasonable, and most importantly trustworthy. Phil Lloyd took the time to share, in layman’s terms, the root cause of our problem and a remedy that would bring our system back up and running; peace of mind to our family. I would highly recommend Southport, and would give Phil Lloyd a 10 out of 10 related to Service, quality, and most important trust. Southport is fair on cost,I plan on partnering with Southport for many years to come. Jim Sheehan
Diane Bilak
4 days ago
Phil was very professional, respectful and knowledgeable and pleasant. He explained everything to me in an easy way to understand. I would definitely use Southport again for my heating/air conditioning
needs.
Michael Bakkala
5 days ago
Professional and very on time.
Brittain Sellers
5 days ago
Great experience! A text was sent when the technician was on the way along with a map to know exactly when they will be here. Also a photo of the technician. Luke was great! Very kind and helpful in explaining things. Thank you!
Kathryn Ciurlik
5 days ago
New HVAC installed. Good response rate from team at Southport. Answered questions thoroughly.
Marylou Weise-Funk
6 days ago
Excellent work and very knowledgeable techs.
Donna Heusdens
7 days ago
Had a surge protector installed on furnace for my AC. Very professional was done in a short time.
Katie Bergs
1 week ago
Jacob was very professional, friendly, thorough, and made sure everything was working properly before the cold months ahead. Southport does a nice job.
Aaron Maldonado
1 week ago
Quinn was very helpful and took his time to fix the drain problem for the sink. Definitely was happy with the service he provided.
Anneka Lindholm
1 week ago
Southport completed a furnace inspection and tuneup, and same day fixed a couple things that had come up in their review. Their staff is kind, friendly, consistent, informative, and knowledgeable. Their explanation was thorough and their reports showed they really did their due diligence. They take their time to answer questions and leave the homeowner feeling confident. Can’t recommend enough.
Craig Willett
2 weeks ago
Tyler and Dakota installed our new A/C unit today. Right form the time they arrived (on time!) until they departed their professionalism, skills and gentlemanly manners never swayed. They are excellent representatives of Southport. More reasons why we use Southport exclusively! A job well done, Tyler and Dakota!

Andrew performed the annual plumbing inspection 2/20/2025. He is very knowledgeable and skilled in his work. He discovered a couple of situations that needed immediate attention. Those situations were promptly addressed and corrected. Like Tyler and Dakota Andrew is a stellar example of the excellent service from Southport!

On 10/22/2026, Tyler did the annual inspection on our furnace and found a couple concerns. He explained the situation and gave fair estimates. A great representative of Southport!

Also on 10/22/2026, Caleb stopped by abd presented estimates for replacing the furnace. He is very knowledgeable and presents all options very well. Another excellent representative of Southport!

On 10/23/2026 Service Technician Jacob performed the necessary repairs and cleaning of our furnace. Jacob is not extremely knowledgeable, he is personable and efficient. Definitely another outstanding representative of a great company. Well done, thank you!
Lynda Behringer
2 weeks ago
Southport was exceptional from beginning to end. We had an unfortunate incident last week Wednesday that lead us to having to replace our Furnace.

After an emergency call to our local Fire Department in Caledonia and WE Energies, we reached out to Southport Home Services. They had a Technician out early the next morning to evaluate the issue, within minutes Nathan Simons called and was in our home explaining the many options that best fit our needs. He was very detailed, thorough, knowledgeable and displayed outstanding customer service.

The Technicians installed our new Furnace that next day. We are beyond pleased and thank you Southport for the fabulous Customer Service and explaining our options.

We highly recommend Southport to any and everyone looking for Five Star service!!

Many Thanks!

Sincerely Lynda & Mark Behringer
Maria Tuttle
2 weeks ago
We just replaced our entire HVAC system and Hot Water Heater this week with Southport...and we could not be happier!! Our previous system was working but was old...and Southport was able to come out IMMEDIATELY...even during this severe cold snap!! Starting with Nate, who came out to inspect, estimate the job and oversee it...to out technicians, Ryan, Casey and Jackson, these guys ROCKED!!! They were super polite...super efficient...super informative and they left the work area amazingly cleaned up! They were creative in accomplishing an off the beaten road request that we made and everything is in order. When you need HVAC work done...LOOK NO FURTHER!!!

10/22/26: So due Operator error, (or as I say, owner stupidity…LOL…😜), I called regarding a stuck button on my 8 year old electronic thermostat. We scheduled an appointment with SOUTHPORT and Tyler S. was just here and I was told something I probably already knew, (apparently). The button on the thermostat is ALWAYS-that way because the entire thing runs on a TOUCH SCREEN!!!! DUH!!!!
The visit was awesome and Tyler and his mentor giggled with me and DID NOT make me feel stupid at all!! Excellent customer service, from scheduling the appointment (same day) through the end of the appointment. Thank you Tyler and alllof the Southport staff!!!
Gregory Toff
2 weeks ago
Travis did an excellent job. Very nice work.
Robin Ingrouille
2 weeks ago
Good company with great people. They did a great job of installing our new furnace and Ac and their price was very reasonable
Conn Huffaker
2 weeks ago
I want to give a shout out to HVAC technician Vincent Beyer who provided much more than a simple routine check of my furnace. For example, he went through a list of suggestions to make my unit last longer, operate safer, and improve its efficiency. He explained technical items in ways that I could understand their need and how they operated within the whole system. We finished his visit by sitting down and covering every point we had discussed to make sure I understood and was comfortable with all the options and details.

In my opinion, you couldn't have a finer representative for your company.