Annual Bunker Maintenance in Montana

Common Challenges

• Filters clog reducing air flow when you shelter

  HEPA and carbon filters accumulate dust and lose efficiency over time. When you finally need clean air during a crisis, clogged filters can't remove contaminants or maintain positive pressure.

• Batteries not holding charge leave you without power

  Deep-cycle batteries degrade from sitting unused. A battery bank that looks fine on the shelf may only deliver 40% capacity when the grid goes down, leaving critical systems dark.

• Structural cracks develop letting moisture through

  Concrete shrinkage, settling, and freeze-thaw cycles create hairline cracks that widen over years. By the time you see water stains, moisture has already compromised waterproofing and insulation.

How We Help

• Air filtration testing verifies HEPA flow rates stay above 300 CFM

  We measure actual flow rates through HEPA H13 and activated carbon filters, comparing against design specs. Filters are replaced when flow drops below 85% of rated capacity, ensuring contaminant removal works when you shelter.

• Battery diagnostics catch cells losing capacity before they fail

  Load testing reveals which batteries in your 48V bank are degrading. We identify cells dropping below 80% capacity and schedule replacements before a full bank failure leaves you without backup power.

• Thermal imaging finds hidden moisture and cracks before visible damage

  Infrared scans detect temperature differences that indicate moisture intrusion, insulation gaps, or developing cracks. We catch problems at the hairline stage, not after water stains appear on walls.

• Seal inspections prevent blast door and hatch failures

  Rubber gaskets on blast doors and escape hatches dry out and crack over time. We check seal compression, replace degraded gaskets, and verify door alignment so seals maintain overpressure protection.

• Generator servicing keeps backup power ready for extended runs

  Diesel and propane generators need fuel system cleaning, oil changes, and load testing even when unused. We run full-load tests to verify your generator can sustain bunker systems for weeks, not just start up.

• Air filtration testing verifies HEPA flow rates stay above 300 CFM

  We measure actual flow rates through HEPA H13 and activated carbon filters, comparing against design specs. Filters are replaced when flow drops below 85% of rated capacity, ensuring contaminant removal works when you shelter.

• Battery diagnostics catch cells losing capacity before they fail

  Load testing reveals which batteries in your 48V bank are degrading. We identify cells dropping below 80% capacity and schedule replacements before a full bank failure leaves you without backup power.

• Thermal imaging finds hidden moisture and cracks before visible damage

  Infrared scans detect temperature differences that indicate moisture intrusion, insulation gaps, or developing cracks. We catch problems at the hairline stage, not after water stains appear on walls.

• Seal inspections prevent blast door and hatch failures

  Rubber gaskets on blast doors and escape hatches dry out and crack over time. We check seal compression, replace degraded gaskets, and verify door alignment so seals maintain overpressure protection.

• Generator servicing keeps backup power ready for extended runs

  Diesel and propane generators need fuel system cleaning, oil changes, and load testing even when unused. We run full-load tests to verify your generator can sustain bunker systems for weeks, not just start up.