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Commercial Services
Dependable
By Design
Looking for commercial or industrial mechanical services in Wisconsin? Count on Southport Engineered Systems for highly professional results.
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
Our Services
We Are There
When You Need Us
We assemble a versatile team of professionals equipped with the knowledge necessary to accomplish tasks effectively.
About Us
Engineered Systems Built for Performance
Southport Mechanical has delivered expert HVAC, plumbing, and fire protection solutions across Southeastern Wisconsin since 2005, now serving the Madison and Wausau regions. Backed by over a century of combined experience, we’ve grown into a full-service design-build firm with a 45,000 sq. ft. facility and in-house fabrication capabilities.
From commercial and industrial systems to residential projects, we provide efficient, high-performance solutions tailored to your building, helping you achieve reliability, comfort, and long-term value.
Schedue a Consultation Today
Ready to take the next step toward a more efficient and comfortable property?
Our Completed Projects
Siena on the Lake
Siena Center is a multiyear, multi-phased, renovation of a senior community originating from an ecumenical partnership between the Racine Dominicans and Lincoln Lutheran of Racine. On the shore overlooking Lake Michigan, the project consisted of multiple facilities. Phase 1 consisted of 70 retreat center rooms with conference and retreat space. In addition, there are 64 new residences for the Sisters along with 4 guest rooms. Phase 2 consisted of 32 skilled nursing rooms, 16 skilled rehabilitation rooms, physical and occupational therapy space along with a wellness clinic.
Dickson Hollow
Dickson Hollow is a one-of-a-kind assisted living facility located in Menomonee Falls, WI. This project features 4-story wood, 120-unit senior apartment building. Two Story town center along with an underground garage. A three-story, 60-unit assisted living and memory care apartment building of steel framing. The approximate size is 300,000 square feet of new construction that feature 180 new units.
Springs of Kenosha, WI
Complete plumbing for over 180 two- and three-story residential buildings featuring studios, one-, two- and three-bedroom configurations with contemporary appliances and finishes. The Springs properties also offer fully-featured community clubhouses including fitness centers, meeting and business centers, outdoor pools and gathering spaces.
Olympia Brown Science School in Racine, WI
A one-story, 67,500 square-foot elementary school in Racine County that serves Pre-K through 5th grade with 20 general classrooms and 8 specialty teaching spaces. Located near the shores of Lake Michigan, the school was designed to be a science-focused school where students will get hands-on learning experiences to better prepare them for careers of the future.
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.
West Allis DPW
We are currently installing the plumbing and HVAC on a 175,000 square foot brand new municipal building. We ran BIM coordination for the job resulting in many conflicts between trades alleviated prior to installation.
Summer Ridge Apartments
We completed the design and install of both plumbing and HVAC for a new apartment complex consisting of eight 2-story stacked flats. We prefabricated all of the underground sanitary piping for this project.
Affiliations
Award-Winning Service & Proud Partnerships
Our NATE-certified HVAC team provides heating and cooling system services with one-stop repairs from a fully loaded warehouse on wheels, and skilled diagnostic services to target problems quickly. We can also help when it's time for HVAC system replacement or installation for new construction with a carefully selected and sized system that meets your needs and budget. Whether it's snowing, raining, or a hot summer day, we can make sure that your home is a haven!
Why Choose Us
The Southport Difference
Certified Excellence
With an A+ BBB rating and over 2,000 local reviews, we are built on trust and proudly deliver with precision and care.
Expert Technicians
Our NATE-certified HVAC team offers fast heating and cooling repairs with a fully stocked mobile warehouse and expert diagnostics.
Upfront Pricing
Transparent, detailed estimates provides before work begins. No hidden fees, just honesty in our business practices.
Locally Owned
Proudly serving Southeast Wisconsin, combining climate expertise with a personal touch for every home.
Guaranteed Quality
We stand behind every weld, wire, and bolt. If it's not perfect, we return to make it right – guaranteed.
100% Satisfaction
All our systems come with a 100% satisfaction guarantee, plus 30-day coverage on all repairs, parts, and labor.
Read About Our Customers’ Recent Experiences
Alexis Nilsson
2 days ago
Travis was very professional and knowledgeable and I will use them again when needed. All the guys were very good and everyone cleaned up afterwards.
Dawn Cody
5 days ago
James was the technician who listened, investigated, and gave us several options to cure the issue that were dependent upon what would fit in the price range. Most importantly, James spent the time to explain everything in detail and made sure all questions were answered. This is the second time I’ve used SouthPort. They are the right choice!!
Pete Carroll
5 days ago
Helped us on a weekend where we had no water. The tech was prompt, courteous and professional. He gave us some good options and went with a reasonable solution. We are very appreciative of the services we received.
Roy Karpinsky
1 week ago
Friendly and thorough. Appreciated the job well done.
Barb Carel
2 weeks ago
Good service and Joe was very polite.
M Tros
2 weeks ago
I'm on the home maintenance program for plumbing and HVAC. I have been very happy with the service to date. There is always plenty of warning before they arrive and they do their business quickly, professionally, and efficiently. During my last visit they detected two faucet leaks which resulted in two new faucets (covered under lifetime warranty by the manufacturer).
John Miecielica
2 weeks ago
Southport addressed all concerns and explained everything in detail before completing service. Ver professional. They were on time and cleaned up after themselves
Greg Hayes
2 weeks ago
Technician, Marcus, was great. He was on time and very respectful and knowledgeable.
Jeff Sterling
2 weeks ago
We had a new furnace installed by Southport Home Services and had an excellent experience from start to finish. Our salesman, Adam, was very knowledgeable, personable, and easy to work with. He answered all of our questions and made the process stress-free during an already stressful time.
Our furnace broke, and the very next day the installation team was at our home replacing it. The staff was professional, respectful, and did a fantastic job. Everything was left spotless and looked great when they were done. We even felt completely comfortable leaving for the day while they worked in our home, which says a lot.
We truly appreciate the quick turnaround, quality work, and great customer service. Highly recommend Southport Home Services!
Adam Fortune
3 weeks ago
Ryan and Andrew did a great job replacing our AC unit. Everything was spic-and-span and working like a charm when they left. Everyone I’ve worked with from Southport is very friendly and professional.
Beth Wilson
3 weeks ago
This was a warranty repair. Team was timely and professional
Tim Logemann
3 weeks ago
Very friendly and did not oversell
Mary Belotti
3 weeks 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
4 weeks 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
4 weeks ago
Prompt competent service.
Kim Beattie
4 weeks 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
4 weeks 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
1 month 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
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