Building Automation & Controls Systems

Lee Mechanical delivers fully integrated building automation and controls solutions that help facilities operate smarter, more efficiently, and with greater reliability. Our Controls team partners closely with owners, engineers, and contractors to design, install, and support systems that align with how buildings actually operate, today and into the future.

From new construction to complex retrofits, Lee Mechanical provides end-to-end controls services that integrate seamlessly with mechanical systems and support long-term performance.

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Comprehensive Controls Solutions

Our Controls capabilities span the full lifecycle of a building automation system, ensuring continuity from initial design through ongoing support.

We develop control strategies tailored to each facility’s operational needs, energy goals, and system requirements. Our engineers focus on clarity, scalability, and ease of operation, ensuring systems are intuitive for operators and adaptable over time.

Lee Mechanical modernizes legacy control systems to improve reliability, visibility, and performance. We specialize in upgrading outdated platforms while minimizing disruption to occupied facilities and critical operations.

Our teams perform complete panel and field installation, coordinating closely with mechanical construction to ensure clean integration across HVAC and building systems. This unified approach reduces handoffs, conflicts, and commissioning delays.

In-house prefabrication of control panels and assemblies improves quality control, consistency, and installation efficiency. Prefabrication also helps compress schedules and reduce onsite labor.

Controls layouts are fully coordinated using BIM to support clash detection, efficient routing, and smoother field installation, especially in complex or high-density environments.

Every controls system is thoroughly tested and commissioned to verify proper operation, sequences, and communication. Our commissioning process ensures systems perform as designed from day one.

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Ongoing Support & System Performance

Remote Monitoring

Remote monitoring capabilities provide real-time system visibility, enabling faster response, troubleshooting, and proactive system optimization.

Preventive Maintenance

Lee Mechanical offers preventive maintenance programs designed to protect system performance, reduce downtime, and extend equipment life.

Warranty & Long-Term Support

Our Controls team provides responsive warranty service and ongoing support to ensure systems continue to meet operational expectations well beyond project closeout.

Markets We Serve

Lee Mechanical delivers controls solutions for facilities that demand precision, reliability, and performance, including:

  • Data Centers
  • Healthcare Facilities
  • Colleges & Universities
  • K–12 Schools
  • Commercial Office Buildings
  • Laboratories
  • Utilities
  • Government Facilities
  • Airports
  • Hospitality
  • Critical Pressure Control Environments

Controls Technologies & Partners

We work across a wide range of industry-leading building automation platforms, allowing us to recommend and support the best solution for each facility.

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Integrated with Lee Mechanical

Controls at Lee Mechanical are fully integrated with our mechanical construction, service, and design-build teams. This unified delivery model improves coordination, reduces risk, and results in systems that operate more efficiently over their entire lifecycle.

Our Work

Projects That Impress

Discover the breadth of our expertise through our standout projects. From healthcare facilities to industrial complexes, each project reflects our MEPF expertise along with our core values of safety, quality, integrity, and success.

What’s Happening At Lee

News

  • What Wisconsin’s New Fire Protection Regulations Mean for Your Facility

    What Wisconsin’s New Fire Protection Regulations Mean for Your Facility

    At Lee Mechanical, life safety is more than a service. It is a commitment to protecting people, property, and business continuity. Fires and emergencies can put everything at risk in minutes, which is why our team designs, installs, and maintains comprehensive life safety systems that go beyond compliance to create safer, more resilient environments. From alarms and sprinklers to monitoring and training, our expertise ensures that businesses are prepared for the unexpected and positioned to recover quickly when incidents occur. Investing in life safety with Lee is one of the best decisions a business can make.

  • Lee Bestplaces Featured

    Lee Mechanical Ranked #1 Among Extra Large Companies in Milwaukee’s 2025 Best Places to Work

    Lee Mechanical is thrilled to announce that we have been named one of the 2025 Best Places to Work in Milwaukee. We officially received this prestigious award on September 11 at the American Family Insurance Amphitheater at Henry Maier Festival Park.