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Military & Defense Facilities

When the mission demands absolute reliability, military installations turn to John F. Pennebaker Co., Inc.
We support federal and defense facilities with mechanical systems built to operate under pressure, withstand harsh conditions, and perform without fail.

From barracks and headquarters buildings to training ranges, hangars, secure facilities, and mission-critical infrastructure — we deliver mechanical work that meets stringent military standards and supports operational readiness.

Mission-Critical Mechanical Installations

Heating & Cooling for High-Demand Environments

We install and replace chillers, boilers, AHUs, DX systems, ventilation, and hydronic systems sized for large-scale, high-load, and continuous-operation environments typical of military bases.

Secure & Sensitive Facilities

Our teams understand the requirements and controls surrounding work in:

  • SCIFs
  • Command & communications centers
  • Medical & training environments
  • Armories and readiness facilities

We coordinate closely with base engineers and security teams to ensure full compliance.

Hangars & Flight-Line Infrastructure

Large-volume ventilation, robust hydronic systems, and highly coordinated piping installations for aircraft maintenance and readiness operations.

Infrastructure Upgrades & System Replacement

We execute phased upgrades in active facilities with minimal disruption to mission activities.
Critical equipment replacements are planned with precision and executed on schedule.

Why Military Clients Trust Pennebaker

We Understand Base Protocol

Our crews know how to work on secure installations:

  • Access control
  • Escort procedures
  • Safety requirements
  • Documentation and reporting
  • Environmental & compliance standards

We operate with discipline, accountability, and respect for chain of command.

We Deliver Under Tight Timelines

Military projects often carry aggressive schedules tied to fiscal cycles or mission needs.
We plan, coordinate, and execute so the installation stays operational.

We Build Systems That Stand Up to Military Demands

Whether it’s a training facility, medical environment, barracks upgrade, or flight-line support structure — our installations perform under real-world stress.

Clear Communication. Zero Excuses.

Command expects clarity and execution.
We provide both—start to finish.

Supporting the Mission — One Project at a Time

If your installation requires reliable mechanical upgrades, replacements, or new construction, we’re ready to support the mission with disciplined execution and proven performance.

John F. Pennebaker Co., Inc.
Mechanical Contractor • Georgia GC License
Federal • Defense • Mission-Critical

We serve those who serve.