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Residential Services
Furnace Installation in Madison & Greater Wisconsin
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4.8 Google Rated
Also Serving Milwaukee & Wausau Since 2005
When your furnace can no longer keep up with Wisconsin winters, replacing it becomes less about preference and more about maintaining reliable heat. Southport Plumbing, Heating & Cooling provides furnace installation across Madison and surrounding Wisconsin communities, helping homeowners transition to systems that deliver steady performance and improved efficiency.
As a locally owned company, we understand how cold weather, home layout, and system age all impact heating performance. Older systems often struggle during extended cold periods, leading to uneven temperatures and higher energy use. Our team helps you move to a properly sized system that delivers consistent heat without unnecessary strain.
Signs It’s Time to Replace Your Furnace
Most systems show clear signs before replacement becomes necessary, especially during periods of heavy winter use.
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Age of system: Furnaces over 12–15 years old often lose efficiency and reliability
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Rising energy costs: Higher bills can signal declining system performance
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Frequent repairs: Ongoing issues may indicate the system is nearing the end of its lifespan
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Uneven heating: Temperature differences between rooms suggest your system is no longer keeping up
If these issues are becoming more frequent, replacement is often the more practical long-term solution compared to continued repairs.
Furnace Installation and System Sizing
Proper sizing plays a major role in how well your new furnace performs over time. A system that is too large may cycle too often, while a smaller system can struggle to maintain consistent temperatures during colder days.
Our team evaluates your home using load calculations, airflow analysis, and ductwork assessment to determine the right system capacity. We also look at insulation levels, ceiling heights, and how different areas of your home are used to ensure balanced heat distribution.
This process helps avoid performance issues and supports steady, efficient operation during peak winter conditions.
Furnace Installation and Replacement Services
Replacing a furnace involves more than installing new equipment. Each step is handled to ensure safe operation and long-term performance.
Southport Plumbing, Heating & Cooling provides furnace installation in Madison & Greater Wisconsin by removing your existing system, preparing the connections, and installing the new unit in accordance with the manufacturer’s specifications. Once installed, we test system performance, verify airflow, and confirm that all components are operating correctly under real conditions.
Before completion, we walk you through system controls and settings so you can manage your new equipment with confidence. This includes thermostat operation, basic system awareness, and what to expect during regular use.
If your current system still has some remaining life, it may also make sense to evaluate furnace repair before committing to a full replacement.
What to Expect During Furnace Installation
Understanding the process helps set expectations and ensures a smooth installation experience.
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In-home evaluation: Review your current system, layout, and heating requirements
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System selection: Provide options based on efficiency, performance, and home size
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Installation day: Remove existing equipment, install the new system, and test operation
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Final walkthrough: Review controls, confirm performance, and answer any questions
After installation, ongoing furnace maintenance helps keep your system operating as expected and reduces the likelihood of future issues.
Why Choose Southport Plumbing, Heating & Cooling for Furnace Installation?
The way your furnace is installed directly impacts its performance during Wisconsin winters. Proper setup, accurate sizing, and attention to detail all contribute to long-term reliability.
We provide:
- Installation tailored to homes commonly found across Madison-area communities
- Upfront, transparent pricing so you know what to expect before work begins
- Experience working with both newer systems and older home layouts
- Careful installation practices that support long-term system performance
- Clear guidance on system operation and next steps after installation
As a locally owned company, we focus on practical solutions that deliver steady heat and dependable performance throughout the winter.
$79
Furnace InspectionOffer cannot be combined with any other promotions, discounts, or special offers. Terms and conditions may apply.
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Expires:
5/31/2026
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Read About Our Customers’ Recent Experiences
Mary Belotti
3 days ago
My experience started with a call to Southport for a second look opinion. They were highly recommended. The technician Tyler was able to find and explain the problem/s I was having with my 20 year old furnace and AC unit. He went over my options thoroughly, quickly set up a time for Justin to go over those options with necessary numbers, and the appointment was made for a new furnace and AC. The technicians Max, Diego and Aaron did a fantastic job with removal of my existing system and new installation. They treated me and my home with respect, paying great attention to detail. Max explained the process as they went along, making sure any question I had was answered. Nathan, the sales manager was even kind enough to stop and make sure I was happy with the whole process. The entire staff exceeded my expectations and were so professional, courteous and respectful, which is especially appreciated, as home repairs can be quite stressful. I highly recommend Southport.
Judy J
5 days ago
Rob S was very prompt and informative. He seemed very knowledgeable and did a great job. He explained everything that he had done and why and asked if I had any further concerns or questions before leaving. I felt confident that he did a good job and all that ws necessary. Great experience.
Florence Hammelev
1 week ago
Prompt competent service.
Kim Beattie
1 week ago
The Southport team was responsive, knowledgeable and extremely thorough. Anthony, Steven and Nick were very helpful. They caught a situation that the pre ious company did not.
Quinn 1271
1 week ago
Southport responded quickly and effectively in replacing our sump pump on the day of the storm on 4/17/2026 where our lower level of our home flooded. Both Alex and Andy responded. Despite not being on call, Andy responded as a neighbor and ensured that the sump pump got installed himself so that the overflow would stop and damage would be minimized. This included working in the midst of the water at 3am. I suspect the water damage and overall impact would have been exponentially worse if not for Andy’s dedication to solving the problem. I was out of town when this occurred and both my spouse and I are very grateful for Andy and Southport’s prompt emergency response. Approximately a week later we proceeded with installation of a battery backup. Thank you for the service and assistance in mitigating this very stressful and difficult situation.
Susan Niman
2 weeks ago
Joe S has come to our home several times and always treats it very well.
We have also used Southport for many years for several things and highly recommend them. They are thorough, professional, treat your home like their own, and always have an accurate estimate for you
Paige Lincicum
2 weeks ago
Andrew was great for the plumbing we needed done. Super knowledgeable and friendly. Highly recommend!
Joseph Männchen
3 weeks ago
I saw Southport at a remodeling trade show at Monona Terrace in Madison, and requested an inspection of the heat pump in my 40+ yo condo. The person scheduling the appointment handled a last minute change to the appt professionally and accommodated my request. The technician was also very professional and knew his trade incredibly well. When the inspection unsurprisingly showed the unit needed replacement, I was still provided with repair options, pricing on individual repairs, and payment methods. A definite bonus was the tech was personable and empathetic, going as far as laughing at my dad jokes (they're bad, trust me 🙄). Finally, there was no pressure to pay for additional services, or any hard sales to purchase anything or repair on the spot. Overall a great experience, I will be using Southport going forward.
Terry Ryan
3 weeks ago
Last week we had Tornados in our area. While listening to the warnings, the meteorologist mentioned a back up sump pump would be beneficial to have. I scheduled an appointment with Southport home services. Andrew came out and explain how the system works. He then gave me prices.. He was able to install the system the same day. I highly recommend Southport Home Services.
Mary Hoffmann
3 weeks ago
My technicians were quite well informed and highly skilled in replacing all of the plumbing in the basement (hot water heater, sump pump, back up sump pump and battery, ejector pump). Highly recommend this company and the specific technician that performed all the work.
Peter Benson
4 weeks ago
These guys were flexible, the team showed up on time, and got the job finished quickly.
Good price too. So far so good with our new heat pump water heater.
A P
4 weeks ago
The main sump pump & emergency sump pumps with a battery were installed and the replacement pump of a toilet. The guy was friendly did a very nice job. We're happy with the work.
Mel Menke
4 weeks ago
I noticed water on the floor on Friday morning below water heater. Called and service tech came out early afternoon. Problem confirmed and new one installed by late afternoon. Entire process was smooth and without incident. Tech was very professional and consistently communicated status so I stayed informed.
Carole Richard
4 weeks ago
Travis was professional and answered my questions. He was very helpful and informative.
T C
4 weeks ago
With all the flooding we had I was concerned about how often my sump pump was running and if it was working correctly. Tanner from Southport was here promptly and checked my sump pump over as well as the drainage hose I installed making sure everything was working as expected. He explained what to watch for as well as the services Southport offered. I am grateful for his professionalism as well as Southport's Shield program!
Kate Weisenburg
4 weeks ago
Southport is always great!! I've had them out for a couple of planned items in the past, so when my sump pump died this morning, they were my first and only call. Not only did they give me a 2 hour time frame in the first phone call, but they continued to call me back and update me as the technicians arrival time changed! Justin was the technician dispatched to my house. He was awesome. There's simply no other word for it. He looked at the pump, gave me 3 quotes, let me pick & choose the features & warranty I wanted, then immediately went to work because all the parts were already on his truck. He also gave me the name of a water remediation company they work closely with and coached me on what questions to address with that other service provider!! I will truly never call anyone else again. Southport has earned my business FOR LIFE!
Daniel Schneider
4 weeks ago
On time, professional, and helpful. Justan did a great job explaining the process for the annual plumbing services.
Carlos J. B.
1 month ago
Sump Pump and Maintenence Free Battery Backup Assembly installation, somewhat expensive.
