Contact Us

Toll Free (800)543-1236 Monday - Friday / 8am - 6:50pm EST

Technical Support Team

Gates That Open, LLC., the designer and manufacturer of the Mighty Mule, GTO/PRO, and GTO Access Systems brands
of gate operators and access controls has been the leader in the access control industry for over 20 years. We
have a knowledgeable, talented team of technicians with over 100 years of combined experience to assist you with
all of your questions and troubleshooting. Our dedicated staff, certified by the Electronic Technicians’ Association
as Certified Customer Service Specialists, stands ready and eager to support you from the initial installation to
the regular maintenance and upkeep of your gate operator.

Troubleshooting Wizard


We offer trouble-shooting guides and solutions 24 hours per day, 7 days per week.

Buy Parts & Accessories Online


Now you can buy quality parts and accessories 24x7x365 directly from GTO with our new online store.

National Repair Center


The new Mighty Mule National Repair Center handles both warranty and non warranty claims.