Gardall one hour fire safes are a featured Houston fire safe. Microwave style safes come with either mechanical or electronic style locks. All Gardall Houston fire safes have plated interlocking bolts that extend into the safe walls to prevent tampering and removal of doors. All fire safes Houston Locksmith offers are precision built of extra heavy steel, full swinging on heavy duty hinges with interlocking closures on all sides of the door frame. The Gardall one hour microwave series is a popular UL rated fire safe in Houston.