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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 Service Questions
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Read About Our Customers’ Recent Experiences
Craig Willett
2 days 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!
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 days 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
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
3 days 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!!!
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
3 days ago
Travis did an excellent job. Very nice work.
Robin Ingrouille
3 days 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
3 days 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.
In my opinion, you couldn't have a finer representative for your company.
Richard Gage
4 days ago
I had my annual furnace/heat pump checkup this morning. Abraham Celis was the HVAC technician. He comleted a very thorough inspection and went over the results completely with me. Abraham took the time to insure the checkup was done in a quality manner, not just rushing to complete the job and to get to his next stop. I was impressed with Abraham's friendliness and professionalism. Another job well done by Southport.
I had my annual Heat Pump AC checkup today (8/26/26) by Southport. As always, their technician Zach Birkholrz did a thorough and excellent job. Zach is very pleasant and professional and explains the checkup process and results very clearly. And, as a bonus, he gets along with our dog.
Joe Suchla replaced our two outside faucets and main water shut-off today. The rear faucet was only accessible from a basement crawl space, so he installed a secondary shut-off valve in the baseme t so I did not have to enter the crawl space to shut off the faucet in the winter months. He also bought the main water shut-off up to code with a shut-off valve on each side of the meter. Joe arrived on time, performed all plumbing upgrades professionally, kept me informed of the upgrade progress, and cleaned up at the end of the job. We are very pleased with the job Joe did and have always been pleased with the work Southport has done for our plumbing and HVAC needs. We highly recommend Southport.
Jackson did an excellent job of system check of our AC. He explained everything he checked and the meaning of all test results. A very friendly and professional service tech. Highly recommend SouthPort and Jackson.
I had my annual Heat Pump AC checkup today (8/26/26) by Southport. As always, their technician Zach Birkholrz did a thorough and excellent job. Zach is very pleasant and professional and explains the checkup process and results very clearly. And, as a bonus, he gets along with our dog.
Joe Suchla replaced our two outside faucets and main water shut-off today. The rear faucet was only accessible from a basement crawl space, so he installed a secondary shut-off valve in the baseme t so I did not have to enter the crawl space to shut off the faucet in the winter months. He also bought the main water shut-off up to code with a shut-off valve on each side of the meter. Joe arrived on time, performed all plumbing upgrades professionally, kept me informed of the upgrade progress, and cleaned up at the end of the job. We are very pleased with the job Joe did and have always been pleased with the work Southport has done for our plumbing and HVAC needs. We highly recommend Southport.
Jackson did an excellent job of system check of our AC. He explained everything he checked and the meaning of all test results. A very friendly and professional service tech. Highly recommend SouthPort and Jackson.
Alan Skripsky
4 days ago
Mat did great work.
On 10/21/26 Luke did great work.
On 10/21/26 Luke did great work.
Craig Willett
4 days 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!
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!
Ned C
4 days ago
My service provider was outstanding!! Answering my questions and providing me with useful information and advice.
Debbra Thorne
4 days ago
They gave a fair price for the work and they showed up on time. Very thorough and explain all they did. Good quality work
Carla Resch
5 days ago
Max and Noel replaced my furnace, and I'm very pleased with the work that was done. Thank you to Anthony for initiallyidentifying the problem and attempting to repair it. Thanks also to Justin for meeting with me late on a Friday afternoon to select a furnace, schedule an install and work through financing with me.
Patrick Stiennon
5 days ago
Look at ever issue I was interested in and explained options we could go from there. Was fine about sending me the option so I could think it over now or in the future.
Patti P
6 days ago
Travis and Luke did a thorough job inspecting our water heater, plumbing and furnace. We have a maintenance agreement and it seems worthwhile for our house heating, air conditioning and plumbing needs.
Wendy Zwolenski Lambert
6 days ago
The technician, Abe, was very helpful and efficient.
Laurie Poznanski
7 days ago
Needed my tub drain cleaned out. Very prompt and efficient, even did a full check of my entire system at no additional charge!! I don't want to jinx myself but i will definitely call them again in the future!!!
Stephen Bantz
7 days ago
Jake did a very through job checking out my furnace. Was able to answer any questions I had. Being part of shield program is great!
Ned Kramer
1 week ago
Andrew was very polite & went right to work. He found the problem in s few minutes. Pick up what he needed & installed it quickly & then made sure everything worked properly. 10+
Patti & Ned Kramer
Patti & Ned Kramer
