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10531 E US Hwy 40, Independence, MO 64055

  • DEFCON Mfg


Underground Bunker Engineering

DEFCON Underground MFG constructs all of its underground bunkers and bomb shelters from a set of stamped plans designed by a professional structural engineer. All of our underground bunkers and bomb shelters are made 100% out of steel inside and out. DEFCON Underground MFG bomb shelters are also covered with concrete with reinforced structural steel. Please take a look at our engineering load letter. DEFCON Underground MFG makes sure everything is over engineered and we cut no corners. We can also custom engineer any floor plan that you are looking for. If you are looking for escape tunnels, hidden doors, special defensive options, rest assured that when the time comes to use your underground bunker or bomb shelter you will have no worries. 

Multiple customizable underground bunker floor plans to meet your security needs. 

For a Free Quote, call us at (816) 438-7171 or

DEFCON Underground MFG is one of the only bunker companies in the industry with an FFL Licenses, Master Plumber Licenses, Certified Welders, Experienced Excavation Crew and an In-House Manufacturing Plant. DEFCON Underground MFG is able to handle the manufacturing and installation of your unit from start to finish, so give us a call to start the process. 

Do you have questions about the process of installing an underground bunker, emergency shelter or underground bomb shelter. Check out our bunkers FAQ page.



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