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Commercial HVAC systems require precise design, installation, and ongoing service to maintain performance, efficiency, and code compliance. Southport Mechanical provides commercial HVAC solutions across Madison and Greater Wisconsin, supporting projects through system design, construction, and long-term service.
Our team includes engineers, fabricators, and skilled tradespeople who work together to deliver HVAC infrastructure that meets operational demands. Each project is approached with a focus on performance, scalability, and compliance with commercial standards.
Request a bid to connect with our commercial HVAC team and discuss your project requirements.
Commercial HVAC Services
Southport Mechanical delivers comprehensive HVAC services designed to support commercial equipment and infrastructure at every stage of their lifecycle.
System Design and Engineering
- Load calculations to match capacity with building demand
- System layout and planning for efficient airflow and distribution
- Code compliance review to meet local and regional requirements
Installation and Construction
- Rooftop unit installation and large-scale equipment integration
- Ventilation system installation to support indoor air distribution
- Ductwork coordination with the overall mechanical layout
Repair and Retrofit
- Performance diagnostics to identify inefficiencies
- Equipment replacement and upgrades for aging infrastructure
- Retrofit solutions to improve existing performance
Preventative Maintenance
- Scheduled inspections to maintain performance
- Adjustments and optimization to improve efficiency
- Long-term maintenance planning to extend equipment life
Commercial HVAC Systems We Work With
Southport Mechanical works with a range of commercial HVAC equipment designed for different building types and operational requirements.
- Rooftop units (RTUs) for centralized heating and cooling
- Industrial heat pump systems for efficient temperature control
- Geothermal HVAC systems for energy-conscious applications
- Ventilation and air distribution systems to support airflow and indoor conditions
Equipment selection and configuration are based on building size, usage demands, and integration requirements.
In-House Fabrication and Mechanical Capabilities
Southport Mechanical supports commercial HVAC projects with in-house fabrication and mechanical expertise.
- Sheet metal fabrication for custom ductwork and components
- Ductwork prefabrication to improve installation efficiency
- Process piping capabilities for specialized applications
- In-house welding to support mechanical system construction
These capabilities allow greater control over quality, installation timelines, and overall project coordination.
Full Lifecycle HVAC Support
Our team supports commercial HVAC infrastructure throughout the entire project lifecycle.
- Design-build projects with integrated planning and execution
- New construction systems built to meet project specifications
- Retrofits and upgrades to improve performance
- Ongoing service and maintenance to support long-term operation
This approach ensures consistent performance from initial installation through long-term operation.
Commercial HVAC Applications
Southport Mechanical provides HVAC solutions across a range of commercial environments.
- Commercial buildings, including office and retail spaces
- Industrial facilities with complex requirements
- Municipal projects requiring code-driven design
- Multi-family properties with large-scale demands
Each application requires a tailored approach to design, installation, and service.
Why Choose Southport Mechanical
Southport Mechanical brings the experience and capabilities required to support commercial HVAC infrastructure at scale.
- Integrated engineering and trades expertise across all project phases
- Strong knowledge of codes and compliance requirements
- In-house fabrication capabilities to support design and installation
- Scalable workforce equipped for complex commercial projects
Our team focuses on delivering HVAC solutions that perform reliably and meet the demands of commercial environments.
Industries We Serve
Industrial
Manufacturing Facilities
Educational Facilities
Government Facilities
Healthcare Facilities
Nursing/Assisted Living Facilities
Multi Family and Hotels
Business and Retail Facilities
Warehousing and Storage Facilities
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Our Completed Projects
Sun Prairie Public Library
Sun Prairie Public Library in Sun Prairie Wisconsin. We are currently installing the plumbing and HVAC of a renovation and a 25,000 square foot addition to the existing library. The renovation portion of the job is projected to begin summer of 2025.
Lake View Technology Academy
We completed the HVAC install of this brand new 48,000 square foot school that specializes in STEM fields and trades education. We prefabricated the majority of the ductwork as well as the controls for the VAV boxes on this job.
Woodman’s Racine
Woodman’s Racine in Racine Wisconsin. We are currently installing the HVAC for a brand new 250,000 square foot Woodman’s going up in Racine, Wisconsin. We prefabricated both the spiral and rectangular ductwork.
FAQ'S
Expert Answers To Your Plumbing Questions
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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
1 month 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.
