Wall Geothermal is a licensed, bonded, and insured geothermal heating and air conditioning contractor in the State of Oklahoma. We offer residential and commercial geothermal system sales and service, including diagnosis and resolution of problem jobs. Wall Geothermal provides design engineering, project management, and turnkey geothermal installations. Our primary area for service calls is in Oklahoma City and any area within 1 hour drive of Oklahoma City. We will install geothermal systems anywhere in the State of Oklahoma.