(314) 473-5141 info@mcowiring.com
Family-Owned Since 2003
Licensed in MO, NE, KY & IL
NICET-Certified Fire Alarm Expertise
St. Louis Low Voltage Contractor

Security, Fire Alarm & Cabling Work Managed by a Family-Owned Team

M-CO designs, installs, tests, and maintains low-voltage systems for offices, schools, industrial facilities, retail spaces, and residential projects. Clients bring us in when they need security, fire alarm, voice, data, and fiber handled without subcontractor chaos.

See Service Scope Request a Quote
Fire Alarm

NICET-certified support

Design assistance, permitting, testing, closeout coordination, and as-built documentation.

Security

UL-listed systems

Intrusion detection, CCTV, access control, monitoring, and specialty sensors for real sites.

Infrastructure

Labeled and tested cabling

Voice, data, Wi-Fi backbone, fiber, and structured cabling installed for long-term serviceability.

Coverage

Local base, multi-state work

St. Louis-based team with licensing and experience that supports projects beyond a single municipality.

Permit & closeout support

Drawings, testing, as-builts, and inspector coordination built into the project flow.

Security & monitoring

Intrusion, CCTV, access control, and monitoring systems built around real code requirements.

Voice, data & fiber

Cabling that is color-coded, labeled, bundled, tested, and easier to service after turnover.

One-vendor low voltage scope

Security, fire alarm, voice, data, and fiber from one accountable contractor instead of three.

M-CO technician working on a circuit breaker panel
20+ Years Experience
Why M-CO

Accountability You Can Actually Reach

M-CO is family-owned, and the owners are not anonymous. That matters on jobs where scope shifts, inspectors have questions, or multiple trades touch the same low-voltage system.

The team works across security, fire alarm, voice, data, and fiber, which lets M-CO operate as a one-vendor low voltage partner instead of forcing you to manage separate specialty subs.

Family-Owned Since 2003
Security, Fire, Voice, Data & Fiber
Licensed in MO, NE, KY & IL
Commercial, Industrial, Education & Government Work
Learn About M-CO
Our Expertise

Three Core Service Lines

Most projects start in one lane and spill into another. M-CO covers the main low-voltage scopes without forcing you to coordinate multiple vendors.

Security Systems

UL-listed intrusion detection, CCTV, access control, environmental sensors, and monitoring for commercial and residential sites.

See Security Page →

Fire & Safety

NICET-backed fire alarm design, permitting, inspection, testing, maintenance, and emergency notification systems.

See Fire Alarm Page →

Structured Cabling

Structured cabling, fiber, voice, data, and Wi-Fi backbone installs that are labeled, tested, and documented.

See Cabling Page →
Best Fit Projects

Where M-CO Usually Gets Called In

Not every contractor is built for coordination-heavy work. These are the environments where M-CO’s mix of systems knowledge and accountability tends to matter most.

Schools & public facilities

Occupied buildings that need code coordination

When a project involves inspectors, phased access, and life-safety requirements, M-CO handles the coordination work that generic installers usually hand back to the client.

  • K-12 and campus security upgrades
  • Municipal and government buildings
  • Fire alarm work in active facilities
Offices, retail & tenant work

Spaces that need multiple systems to land cleanly

Access control, CCTV, fire alarm, and data cabling often collide in office and retail projects. M-CO is most useful when those scopes need to look coordinated instead of bolted together.

  • Tenant build-outs and remodels
  • Retail security and POS infrastructure
  • Mixed-use and multi-tenant properties
Industrial & service facilities

Plants, warehouses, and performance-critical infrastructure

Industrial sites are less forgiving of sloppy cable management and weak notification systems. M-CO brings structured installs, monitoring options, and cleaner documentation to those environments.

  • Environmental and condition monitoring
  • Warehouse and service facility security
  • Fiber and backbone cabling upgrades
New builds & retrofit packages

Projects that benefit from one low-voltage partner

The sweet spot is work where security, fire alarm, and cabling overlap. Instead of juggling separate installers, clients get one contractor who understands how those systems affect each other.

  • Design / build low-voltage planning
  • Retrofits with phased turnover
  • Documentation-heavy closeout packages

Need a Security, Fire Alarm, or Cabling Scope Reviewed?

Tell M-CO whether you need a retrofit, inspection support, tenant build-out, or a full low-voltage package. You will get pointed to the right service and next step without the generic sales runaround.

Request a Quote Call (314) 473-5141
Call Now Email Us