Frequently Asked Questions

Yes, your shelter can be moved. For it to remain an NSSA verified safe room, it must be installed by a company affiliated with the NSSA. We often move shelters for our customers when they change homes or if they want to give the shelter to someone else. The price for a shelter move can vary based on the size of the shelter and the distance of the move. Call today 877-883-0733 for a free moving estimate.
Yes! We understand the number one obstacle to owning a safe room is cost. When it comes to the safety and protection of your family, cost should be the least of your concerns. That is why we are proud to offer affordable financing to our customers. Contact us today to find out how affordable protecting your family can be.
Yes. Our shelters do not block cell service. However, in a storm it is possible that cell towers may be damaged which would affect phone service.
Building permit requirements vary by city and county. Our permit team has more than 15 years’ experience securing permits. If a permit is required, we will be able to facilitate the process.
Installing the shelter usually takes no more than a few hours at your house. The entire process of ordering the shelter, having a site inspection, building and installing the shelter can take as little as two weeks to a month, depending on the size and location of the shelter and the time of year.
We strongly recommend storm shelters for our customers who live in mobile homes. Most often, we pour a concrete pad and install the shelter in a spot in the yard with easy access. Contact us for a site visit so we can look at your situation and help you choose the best possible shelter placement.
In many cases, yes. What exactly determines the value of a home can vary widely. However, many of our customers have found that having a storm shelter in their home increases the value and makes the home easier to sell. Many times customers sell their home with the storm shelter for enough extra money to have us install a new shelter in the home they are moving into.
A common myth is that below ground shelters are safer. In reality, experience has shown that below ground shelters are subject to many hazards such as insects, cracking, leaking, and in severe cases flooding. People are also more liable to be trapped inside because doors on underground shelters swing outward. Sometimes disabled individuals have trouble navigating the stairs down into an underground shelter.

Above ground shelters have proven to be superior to underground shelters, since they don’t have the potential flooding or access problems. Our above ground shelters have protected families through some of the worst tornados in history, including the Joplin tornado of 2011. Our above ground shelters provide you with the very best protection and easiest access when compared to below ground shelters.

Stronghold builds both pre-fabricated welded shelters and bolt together shelters. Our most popular residential model, the Z4, is a bolt-together unit. In our engineering tests and evaluations, our bolted shelters have performed as well or even better than welded units. While being equal in safety, bolted units are usually less expensive for the customer and have the added advantage of being able to be assembled on site when necessary, and have the ability to be expanded or alter the door placement if future needs change. With our Z4, we can install a storm shelter in a basement, for instance, by carrying it down stairs in panels and through doors.
Our company was founded by Jeff and Karen Olsen in 2003 as Missouri Storm Shelters, based in Nixa, MO. In 2016, our company was purchased by Carnahan-White, and our name was changed to Stronghold. We relocated to the Carnahan-White facility near Republic, MO. With many years’ experience building and installing safe rooms, our products have a proven track record of saving lives. Our longevity in the industry gives you security in knowing that our safe rooms have a long track record of success, and should you ever have questions or need service, we will be around to help.
We comply with the ICC/NSSA 500 (2014) standard and the FEMA P-361(2015) standard. The ICC/NSSA 500 standard includes the requirements for the FEMA P-361 standard, but is more stringent. We also comply with the IBC (2015) code. Because we take the safety of your family seriously, we comply with the strictest possible standards in designing, building, and installing our safe rooms. We not only have had our shelters tested at the Texas Tech University National Wind Institute, but we have had an independent written wind evaluation done by an engineer. We also have an engineer of record for every job we do. These extra steps make Stronghold different than other companies. We not only claim to comply with the codes, but have independent verification that our products meet the necessary standards for your family’s safety.
The National Storm Shelter Association is one of a few organizations in the United States that verify the quality and compliance of storm shelter companies. The NSSA is widely regarded as having the highest standards, as they require not only debris testing, but also a written wind engineer evaluation of their storm shelters. The NSSA has a strict code of ethics that members are required to abide by. Many communities around the country are moving to require NSSA verification for installation of safe rooms. As a producer member of the NSSA, Stronghold has met the strictest possible testing and evaluation criteria. Each shelter we produce is given an NSSA seal and identification number, and your shelter is listed on file with the NSSA. When a tornado event occurs, NSSA teams inspect these shelters to verify that they performed as they should. Since our company was founded in 2003, we have never once had a shelter that did not perform as expected during a tornado.