Find storage units in San Antonio at StorageMart and get the First month free on select units! Visit us today at 9850 Potranco Rd or call 210.680.1081. When you’re putting your items in to storage units in San Antonio, climate control is the perfect solution. Climate controlled storage units are set so that anything you place inside should never feel the suffocating hold of extreme heat. It’s just like storing stuff inside your own home.We also knows that you need to be able to get something out of your storage unit at the drop of a hat. That’s why we give you convenient hours to access to your space of 6am to 10pm.