Underground Survival Shelter, Underground Storm Shelter, Underground Tornado Shelter

Underground shelter Contact

America's leading Single Family Underground Shelter

Have a question? Looking for more information? Just curious as to how fast your family can have one installed? Use the form below to send us an email. Typically, we will be back to you within 24 business hours. Have an urgent question? Look below the contact form for a phone number and additional contact information!

Underground shelters,Underground Tornado Shelters, Underground Storm Shelters, Underground Safety Shelters, Survival Shelter, Certified Shelter

near absolute protection

Provide your family with near absolute tornado, storm and inclement weather protection with an underground shelter.

Meets or Exceeds all applicable FEMA 320 & ICC 500 specifications.

1,000+ year lifespan

Scientifically proven 1,000+ year lifespan, the Granger ISS is the ONLY storm shelter that can offer near absolute protection for generations to come! Take your protection investment to the next level with a
Granger ISS!

Easy shelter installation

The patented reverse taper design of the Granger ISS Underground Shelter allows for simple, easy installation virtually anywhere with no anchoring system required. Most installs complete in or around 4 hours or less!
Easiest Underground Shelter install!