About AC Fire & Security
AC Fire & Security is a veteran-owned fire protection company based in Eagle, WI, serving Waukesha, Milwaukee, Jefferson and Walworth counties. Our NICET Level III certified team designs, installs, inspects and services fire alarm systems for healthcare facilities, schools, offices, warehouses and commercial buildings. We handle code-compliant installs, annual inspections and testing, and 24/7 UL-listed monitoring, keeping your people and property protected and your building ready for the fire marshal.
Who We Are
At AC Fire & Security, we’re building something stronger—on a foundation of real experience. Our team brings decades of hands-on work in fire protection and low-voltage systems. We’ve spent years in the field, on the trucks, and side-by-side with customers. Now we’re putting that knowledge to work under one roof, focused on delivering reliable protection and straightforward service.
Meet the Team
Joe Cresca, NICET III – Founder & Chief Inspector
Born and raised in Wisconsin, Joe started his career as a firefighter with the City of Mayville, where he also served as a fire inspector and earned his Fire Fighter II certification. In 2014 he joined Great Lakes Fire Protection, where he spent more than a decade designing, installing and inspecting fire alarm and emergency responder radio systems across the region. Today he brings that experience to AC Fire & Security, building a company rooted in practical knowledge and a genuine commitment to keeping people and property safe.
Credentials:
• NICET Level III, Fire Alarm Systems (#141755)
• Kidde Certified
• Fire-Lite Factory Trained
• Silent Knight Factory Trained
• NAPCO Factory Trained
• FCC General Radiotelephone Operator License (GROL)
• Honeywell BDA and Fiber DAS Certified
• Honeywell ERCES/BDA Training (Fire with Radio Solutions)
• Wisconsin Fire Fighter II
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What We Do
Fire Alarm Inspection
Thorough inspections to keep your fire alarm system code-compliant and ready to perform. We check every device, document findings, and help you stay ahead of issues before they become problems.
Fire Alarm Design
Custom fire alarm system design tailored to your building’s layout, occupancy, and code requirements. We create practical, effective plans that protect people and property without unnecessary complexity.
Fire Alarm Parts/Service
Reliable parts and expert service for your existing fire alarm system. From troubleshooting and repairs to component replacement, we keep your system running the way it should.
24/7 Monitoring
Round-the-clock monitoring so your system is never alone. When an alarm activates, trained operators respond immediately and dispatch help when it’s needed.
Fire Extinguishers
Sales, installation, inspection, and maintenance of fire extinguishers. We make sure the right extinguishers are in the right places and ready for use.
ERECS (BDA) Testing
Testing and certification of Emergency Responder Communication Enhancement Systems (BDA systems) to ensure first responders can communicate inside your building when every second counts.
Emergency Lighting Testing
Scheduled testing and maintenance of emergency lighting and exit signs so they work when power fails and people need clear guidance to safety.
Why Us
Reliability
Dependable systems and support you can trust around the clock.
Compliance
Expert guidance to ensure your business meets all fire safety regulations.
Maintenance
Proactive testing and service to keep your equipment ready at all times.