Commercial Fire Protection in Caledonia & Milwaukee

Dependable by Design

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New distribution centers and manufacturing space along the I-94 corridor between Milwaukee and Kenosha store goods higher and denser than older buildings did, and the sprinkler system has to be designed for that commodity and rack height. Southport Mechanical designs and installs commercial fire protection to NFPA 13 across southeastern Wisconsin, with sprinkler piping prefabricated in our own facility and inspection programs that keep systems ready after occupancy.

Call 262-898-3000 to request a fire protection bid for your Caledonia building.

Southport pros planning a commercial fire protection plan for a client.

Reasons to Update or Install a Fire Sprinkler System

A sprinkler system is designed around a specific hazard, and when the building changes, the design may no longer cover it. These are the common triggers for new work.

  • Higher storage or new commodities can push a warehouse past what its original sprinkler density was designed to control.
  • Renovations and tenant fit-outs change wall layouts, ceiling heights, and occupancy, which often means relocating or adding heads.
  • Failed inspection items such as corroded heads, obstructed piping, or impaired valves need correction before the next fire marshal visit.
  • Dry systems in unheated areas like loading docks and parking structures need attention when trip tests show slow water delivery or internal corrosion.
  • Older buildings without sprinklers may be required to add them as part of a change of use or a major addition.

Fire Sprinkler Design, Fabrication and Installation

Every system starts with hazard classification. Our designers look at occupancy, commodity class, storage height, and the available water supply, then run hydraulic calculations to size piping, heads, and, where needed, a fire pump. The design is coordinated with the building’s alarm system, structure, and other mechanical trades so sprinkler mains are not fighting ductwork for the same ceiling space. Where a project shares a water service with domestic systems, our commercial plumbing team handles the backflow and service work under the same contract.

Sprinkler piping is prefabricated in our facility. On the 200,000-square-foot Doosan Bobcat renovation in Johnson Creek, our orbital welder let us prefabricate all of the sprinkler piping for 1,800 heads, and crews installed it above active machinery while the plant kept running. Prefabrication shortens time in the field, which matters most when the building cannot shut down.

We match material and layout to the building. At Springhill Suites in Milwaukee, a new four-story, 94-unit hotel, we designed and installed the fire protection using a plastic pipe system. At Mill Creek Academy, a 42,000-square-foot school, our engineers used 3D drawing software to route a dry sprinkler system through wood scissor trusses.

The systems we design, install, and service include:

  • Wet pipe systems for heated spaces.
  • Dry pipe systems for docks, attics, and parking areas that can freeze.
  • Pre-action systems for server rooms and spaces where accidental discharge is costly.
  • Deluge systems for high-hazard applications.
  • Antifreeze systems for small unheated areas.
  • ESFR systems for high-piled warehouse storage.
  • Fire pumps and controllers where city water pressure falls short of the design demand.

Retrofits and System Modifications

When a building changes, we evaluate the existing system against the new hazard and occupancy, then add, relocate or upgrade heads, mains and valves to bring it up to current code.

Inspection, Testing and Maintenance

NFPA 25 sets the schedule for inspecting and testing sprinkler systems, fire pumps and valves. We perform those inspections, document results for your insurer and the fire marshal and correct deficiencies we find.

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Why Choose Southport for Fire Protection?

Design, fabrication, and installation happen inside one company, so the people who calculated your system are a phone call away from the crew installing it. We also handle HVAC and plumbing, which simplifies coordination when one contractor is responsible for all the mechanical work above the ceiling.

Need a sprinkler system designed, upgraded, or inspected? Call 262-898-3000 to request a commercial fire protection bid.

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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Read About Our Customers’ Recent Experiences

Dan Oleary
2 days ago
Nathan was very detailed and explained things very well.
Sharon Edic
2 days ago
Dispatch team was professional and service technician Quinn was super! He was very nice, explained everything in detail, answered all our questions and worked quickly. Highly recommend!
Brittany Urban
2 days ago
Riley was amazing! He kept me updated throughout the process because we were not home. He was very professional and very hard working!!
frannie lynne
3 days ago
Vincent arrived on time, explained all info clearly and with detail, was courteous. I learned interesting and important facts about the furnace and truly appreciate his taking the time to educate my husband and me.
Denise Stanford
5 days ago
Southport was extremely helpful and had an appointment the day after I called to inquire about their maintenance plans.

Luke was great. He explained what he found during routine furnace maintenance, things that were working well and things to watch for in the future. Best experience I have had in a long time.
Karyn S
5 days ago
I had a wonderful experience with Southport! Justin and Phil were both fantastic to work with. Justin was incredibly friendly, knowledgeable, and helpful throughout the entire process. He made everything easy and stress-free and was a pleasure to work with!
Phil was equally wonderful! He was professional and thorough. I really appreciated his attention to detail and the care he put into his work. Both Justin and Phil went above and beyond to provide excellent customer service.
I highly recommend Southport and especially Justin and Phil! Thank you both for such a positive experience!
Jim Sheehan
6 days ago
Southport’s Technician , Phil Lloyd, is a true asset to his organization! My wife, Karyn and I have had many contractors come through our house over the years and I would put Southport at the very top of our service partners. They are knowledgeable, reasonable, and most importantly trustworthy. Phil Lloyd took the time to share, in layman’s terms, the root cause of our problem and a remedy that would bring our system back up and running; peace of mind to our family. I would highly recommend Southport, and would give Phil Lloyd a 10 out of 10 related to Service, quality, and most important trust. Southport is fair on cost,I plan on partnering with Southport for many years to come. Jim Sheehan
Diane Bilak
6 days ago
Phil was very professional, respectful and knowledgeable and pleasant. He explained everything to me in an easy way to understand. I would definitely use Southport again for my heating/air conditioning
needs.
Michael Bakkala
7 days ago
Professional and very on time.
Brittain Sellers
7 days ago
Great experience! A text was sent when the technician was on the way along with a map to know exactly when they will be here. Also a photo of the technician. Luke was great! Very kind and helpful in explaining things. Thank you!
Kathryn Ciurlik
7 days ago
New HVAC installed. Good response rate from team at Southport. Answered questions thoroughly.
Marylou Weise-Funk
1 week ago
Excellent work and very knowledgeable techs.
Donna Heusdens
1 week ago
Had a surge protector installed on furnace for my AC. Very professional was done in a short time.
Katie Bergs
1 week ago
Jacob was very professional, friendly, thorough, and made sure everything was working properly before the cold months ahead. Southport does a nice job.
Aaron Maldonado
1 week ago
Quinn was very helpful and took his time to fix the drain problem for the sink. Definitely was happy with the service he provided.
Anneka Lindholm
2 weeks ago
Southport completed a furnace inspection and tuneup, and same day fixed a couple things that had come up in their review. Their staff is kind, friendly, consistent, informative, and knowledgeable. Their explanation was thorough and their reports showed they really did their due diligence. They take their time to answer questions and leave the homeowner feeling confident. Can’t recommend enough.
Craig Willett
2 weeks 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!
Lynda Behringer
2 weeks 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