SPECIAL HAZARD SUPPRESSION • WISCONSIN
Clean Agent & Special Hazard Fire Suppression
Clean agent systems designed and installed in-house, plus inspection and service for CO₂, water mist, foam, and dry chemical systems — for data centers, server rooms, clean rooms, and industrial processes.
DECADES OF SERVICE
Trusted across Wisconsin

WISCONSIN LOCAL
SE Wisconsin & Statewide

FULL-SERVICE IN-HOUSE
One accountable team

24/7 RESPONSE
Always ready
Overview
A defined scope across specialty suppression.
Lee provides support across a wide range of special hazard fire suppression systems — from inspecting and servicing existing installations to in-house design of clean agent systems.

Design
Clean agent systems, designed in-house.
Lee designs clean agent systems in-house, sized to the room they protect and coordinated with detection and releasing controls. Design includes:
- Hazard and room evaluation
- Agent selection: FM-200, Novec 1230, or Ecaro 25
- Agent quantity and nozzle placement calculations
- Detection and releasing panel coordination
- Room integrity considerations so the agent holds
Design · Applications
Selected by hazard — not by building type.
Special hazard systems are typically used where water-based suppression isn’t appropriate, where equipment or assets need additional protection, or where the hazard is tied to a specific process or condition. That includes data centers and computer rooms, clean rooms, and industrial applications such as CO₂ protection for bearing housings.
Installation
Specialty systems, executed and supported.
For more complex or specialized suppression systems, Lee provides installation execution, project coordination, system integration, and ongoing inspection and service. In these cases, system design and material procurement may be completed through a specialty partner — while Lee remains responsible for installation and long-term support.
- FOAM SYSTEMS
- HIGH & LOW PRESSURE CO2
- WATER MIST SYSTEMS
- INERGEN & INERT GAS
- DRY CHEMICAL SYSTEMS
Installation · Integration & Controls
Suppression is only part of the response.
Special hazard systems rely on more than suppression hardware. Proper integration ensures systems activate correctly and function as part of a complete life safety response. Because Lee’s fire alarm and suppression teams are both in-house, detection, releasing controls, and suppression are coordinated by one team. Lee coordinates across:
- Releasing panels: control of system actuation
- Detection systems: early, reliable initiation
- Fire alarm integration: a coordinated building response
- Shutdown sequences & control logic: safe, correct operation
Inspection
Kept effective over time.
Like all fire protection systems, special hazard systems require ongoing inspection and service to remain effective. Clean agent systems need a full inspection and test every year, agent checks every six months, and an annual review of the protected room for new openings. CO₂ systems add a monthly inspection and semiannual cylinder weighing. Lee supports the full cycle:
- Routine inspection & testing
- Ongoing service & maintenance
- Recommended corrective actions
- Identification of deficiencies
- System condition evaluation
Long-Term Support
Supported for the life of the system.
Protected spaces change: new equipment, relocated racks, new openings in walls and ceilings. Lee stays with the system after installation:
- Service and repairs
- Recharge coordination after a discharge
- Adjustments when the protected space changes
- Releasing controls and fire alarm integration support
- Planning for upgrades or replacement
With detection, releasing controls, and suppression handled by one team, one call covers whatever changes.
WHY LEE
Proven fire protection, decades of experience.
Lee Mechanical has served Wisconsin for decades, and our fire protection team brings years of hands-on fire sprinkler installation and inspection experience across the state.
HOW IT WORKS
From first call to a code-ready system.
1
Call or request a quote
Tell us about your building and your systems. For emergencies, call 262.657.9490 any time.
2
Site visit and review
A Lee fire protection specialist reviews your systems, inspection history, and code requirements.
3
Clear scope and schedule
You get a written scope, pricing, and schedule, and inspection programs are set up on a recurring calendar.
WHO THIS SERVICE IS FOR
For those responsible for critical environments.
- Property owners
- Building managers
- Organizations managing critical environments or processes
- Facility & operations teams
- Maintenance personnel
FREQUENTLY ASKED QUESTIONS
Special hazard, answered.
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