Dousman’s Top Commercial HVAC and Plumbing Contractor
Custom Systems & Expert Repairs
Southport Engineered Systems offers tailored commercial HVAC and plumbing solutions across Dousman, Southeast Wisconsin and Northern Illinois. With decades of experience, our expert team specializes in designing, building and maintaining systems to improve performance and workflow. 
We handle every phase of HVAC and plumbing projects—from design and installation to ongoing maintenance. Rely on us for 24/7 emergency repairs and service. Our professionals work within your budget to provide solutions to meet your facility’s goals.
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Our Commercial Capabilities
Southport Engineered Systems accelerates your facility’s startup. We prioritize clear communication and flawless execution throughout every stage of your project. Our commercial services include:
- Rooftop Units (RTUs)
- Package HVAC units
- Geothermal heating and cooling
- Ventilation systems and multiple unique ventilation zones
- Custom ductwork
- Humidifiers and chilled water systems
- Terminal units
- HVAC piping
- Sheet metal work
- Water, waste and storm sewer systems
- Deionized water piping
- Compressed air systems
- Utility and industrial process piping
- Backflow testing
- Locating and camera services
- And more
We keep your project on schedule and within budget by utilizing advanced project management tools and prefabrication methods.
Commercial HVAC Systems
We are the largest Carrier dealer in Southeast Wisconsin and Northern Illinois, and we service all common industrial HVAC units.
- York
- Trane
- American Standard
- Johnson Controls
- Lennox
Our cost-effective solutions and attention to detail set us apart from our competitors.
Common HVAC Services Offered
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Commercial Plumbing Systems
Our experts streamline your commercial plumbing projects. Through in-house prefabrication, we minimize supply chain delays and reduce costs. We serve various facilities, including schools and senior living communities.
Common Plumbing Services Offered
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Commercial Fire Sprinkler Systems
Our engineering team customizes fire protection systems for your commercial property. We comply with NFPA and SPS standards, offering wet pipe, dry pipe, pre-action and deluge systems for comprehensive protection.
- Inspection
- Retrofitting and remodeling
- Emergency backup power and lighting
- Maintenance
Common Fire Protection Installations
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Serving Dousman Businesses in All Major Industries
We provide efficient, practical plumbing solutions across the Dousman region. Our skilled team blends exceptional craftsmanship with custom-fabricated components for both new construction and facility upgrades.
Common Industries We Service