Find S & S Self Storage at 3851 FM 663 in Midlothian, TX. Were happy to be a storage solution for the Midlothian community and surrounding areas such as Venus, Mansfield, and Waxahachie. If youre ready to get organized and you live in the area, head over to our Unit Prices page to find prices and availability. You can give us a call or visit us at the office during business hours if you need to speak with a storage expert.