It is not safe to repair your own gas line, as trying to repair a gas line without proper professional training can result in a gas leak, which presents a major safety concern. Hire a certified professional to maintain and repair gas lines, and do not repair them yourself.
Have gas lines inspected yearly by certified professionals to avoid dangerous leaks. If you suspect a gas leak, immediately leave the home, shut off gas valves, and call 911 and the utility company. Do not risk your safety to save money. Many national, regional and local professionals offer affordable gas line inspection and repair services.