Gas piping or gas line repairs are tricky and risky. Using a licensed plumber is the safest option as he MUST follow the City and State codes to protect the life and safety of the customer or public. We will not take shortcuts. All repairs are correctly done per code and tested when completed. Gas lines can be made of black steel pipe, polyethylene tubing, or stainless steel. Sometimes you find copper tubing for buried propane lines outside, but we do not install copper for gas piping. The propane providers run the line to the home or building and sometimes use copper tubing. Don’t mess around with a gas leak. Have a professional install or repair the gas lines.