Preferred Shelters, LLC. is Oklahoma’s #1 choice for storm shelter and safe room installation. They offer a variety of shelters and safe rooms for both residential and commercial use. All storm shelters and safe rooms from Preferred Shelters are impact tested and come with a 10-year warranty against leaks and corrosion. If you are interested in getting a free estimate on a new storm shelter or safe room, contact Preferred Shelters today at 405-702-1717 or visit their website at http://preferredshelters.com.