Commercial HVAC Services in Greater Wisconsin

Dependable by Design

4.8 Google Rated

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 systems on a commercial rooftop.

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.

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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

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    Read About Our Customers’ Recent Experiences

    Susan Brydges
    4 days ago
    I purchased my furnace from Southport and needed service when my AC went out during a storm. Andrew,my service tech was fantastic! He explained everything, got the parts the same day, and had me up and running in no time at all! At his recommendation, I also purchased a surge protector and maintenance agreement so I can rest easier during storms. Thank you Andrew!!
    Donald Cress
    1 week ago
    Very professional, very helpful, very competent
    Lauretta McCoy
    1 week ago
    Wonderful experience. The installers were friendly and knowledgeable. Glad I chose Southport!
    Michael Smith
    2 weeks ago
    Solid team , from start to finish the professional team know how to showcase products, services needed to get you going. I was very pleased with the entire 5 stars and would recommend them to anyone in the area
    Dylan Gray
    2 weeks ago
    I was referred to Southport by a co-worker. Their staff is super friendly and informed. The sales manager Nate was reasonable to work with. You can probably save a few hundred bucks going with a smaller company with less overhead, but I think the peace of mind that comes along while working with an established company like Southport, is much more important. They got me booked for an instilation appointment within two days of signing a contract! Their technicians were polite and did the best they could at keeping my carpeted basement clear of mud, considering the first few hours they were there was during a rainstorm. Whatever mess they made they cleaned up. The installation took longer then expected (about 10 hours) but there was a lot of work to be done, and the technician thanked me for my patience. He said it's nice to be able to take their time and make sure everything is installed perfectly! All and all, I had a positive experience, and highly recommend using Southport. Friendly and fast service at fair price!
    Joe Pangburn
    2 weeks ago
    Vincent did a great job. Very informative. Kept me informed on every turn. Very conscientious and quality work. I'd highly recommend them and Vincent
    Rob Lambert
    2 weeks ago
    Jacob arrived on time. He was both professional and polite. Friendly as well. Answered all my questions in detail. Great tech, great business.
    Mike Meid
    2 weeks ago
    Justan and Luke did a great job on replacing our utility laundry sink and replacing our compression water valves to 1/4 turn valves. They involved us in every step of the process to make sure they were doing it exactly as we wanted it done. Friendly, professional and skilled at what they do!
    Irene Eugenis
    2 weeks ago
    Your Tech VINCENT went ABOVE & BEYOND to repair our central air. He spent 8 hrs going up and down 21 stairs each time. THANK YOU for having such an AMAZING , DEDICATED young man
    Erika
    2 weeks ago
    Great job! Super friendly. I love that they text you when they are heading your way with a pic of the person that will be arriving. Great company to work with. Also like the ease of the online appointment request.
    Kathleen Jalensky
    2 weeks ago
    Southport was so wonderful to deal with. I had a quick appointment and Justin was terrific. So professional and kind. Highly recommend them. Mrs Jalensky
    Chris Stemper
    2 weeks ago
    I’m very satisfied with my new air conditioner from Southport Home Services. From sales to installation they were professional and informative about all aspects of the work that would be done. The pricing was better than I expected. I’d definitely recommend them.
    Wally Perry
    2 weeks ago
    On time, friendly, knowledgeable...did a great job.
    Ned C
    2 weeks ago
    My service provider was outstanding!! Answering my questions and providing me with useful information and advice.
    saikat sengupta
    3 weeks ago
    Vincent Beyer is very professional and helped me to understand step by step about the issue and able to figure out the issue with my HVAC and able to fix the issue.
    Anthony Dolas
    3 weeks ago
    Justan was great! He explained exactly what he had to do and what it would cost for each step. When he found there was a shut off for that particular faucet he let me know and I didn’t pay to have one installed since it was already there. I appreciate the honesty and integrity! Was impressed with the service and signed up for a service plan with them that will bring in more savings for me. Thank you Justan and Southport Home Services!
    Tom Brandon
    3 weeks ago
    Jackson came and serviced our air conditioner on Wednesday, and once again he did an outstanding job. He was very thorough in both his work and explanation of what he did. Southport is in excellent hands if all of it’s employees work with the dedication that Jackson does.
    Mark Scalzo
    3 weeks ago
    The get there when they say they will, have parts available and get the job done. Very happy that they got my A/C working again before the holiday weekend!

    Schedule Service For Your Home Or Business Today!

    Are you looking for great HVAC and plumbing services? Our Southport team serves you with quality plumbing, heating and cooling services in Madison and the surrounding areas. Contact us today!