Call: (800) 817-5116

Over 30 years of experience assisting customers achieve the goal of protecting their equipment assets without compromise to safety or the environment.  With this vast experience, First Defense implements maintenance programs that follow well established OEM best practices.  Our goal is to maintain Operational Sustainability within your critical facility.  Using proven industry practices, our proactive preventative maintenance programs protect assets, ensure compliance, and mitigate risks.

First Defense has saved customers several million dollars in equipment repairs alone.  Careful attention to detail increases reliability and utilizing industry best practices for compliance to local laws and environmental regulations.  Our employees understand the need for timely response and act accordingly.  We incorporate the philosophy that honorable, truthful, and reliable behavior is essential in all actions.

First Defense offers solutions that make sense and save money.  Genuine desire for our customers to succeed drives our every day actions.  Trust First Defense to protect your equipment assets.

Areas of Expertise

Operational Sustainability

  • Preventative Maintenance
  • Predictive Maintenance
  • Reactive Maintenance 24×7 | 365

Maintenance Services

  • Electrical
  • HVAC
  • Fire Prevention | Suppression
  • Water Treatment Systems
  • Security/Access Control


  • Efficiency Assessments
  • Computational Fluid Dynamics (CFD) Evaluation
  • Operational Sustainability
  • Electrical (ARC Flash, Safety)
  • Grounding
  • Lightning Protection
  • Hot/Cold Containment Systems


  • Command Center
  • Monitoring
  • Crisis | Incident Management
  • Lifecycle Management

First Defense Government Clients

First Defense Commercial Clients