We are licensed to work on your RV propane system. We only work on the tank valves and minimal leak issues on the outer part of your vehicle. For more in depth problems, we will refer you to an RV dealer. We install vent free radiant heaters by appointment. These heaters do require electricity and will save your battery and keep you warm and cozy, even in high altitude. Be sure to check out our home page to learn more about our products.