Bulletproof Security Buildings
Custom Bulletproof Structures & Shelters to Meet Any Industry's Needs
Since 1975, Keystone Structures has been manufacturing bulletproof buildings and structures for a wide variety of applications throughout the United States.
Our preassembled structures are available in numerous styles and finishes and can be assembled with state-of-the-art plumbing and wiring technology.
Our designers will work from a customer’s drawings, create a prefab building to fit a site plan or pre-existing foundation, or draft a plan from a rough idea based on individual needs and specifications.
Our clients are situated in 49 states and include many leading industrial companies. Contact us today at 1-800-525-1567 for instant and superior customer service.
See Our Gallery
See a gallery of all our steel and aluminum structures and shelters.
Get a Quote
Steel or aluminum, we customize the structures to meet your needs. Contact us today.
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