A member of the Texas Self Storage Association, HGS Self Storage is committed to providing quality self storage units and parking at fair prices. Our facilities are completely fenced, well-lit, include digital cameras, and 24/7 coded access through the electronic gate system. To make moving and storage easy, we sell boxes and moving supplies. and offer Penske truck rentals at our Hewitt location.. HGS Self Storage is committed to providing quality self storage units and parking at fair prices. Our facilities are completely fenced,well-lit,include digital cameras,and 24/7 coded access through the electronic gate system. To make moving and storage easy,we sell boxes and moving supplies. and offer Penske truck rentals at our Hewitt location.