Am-Cat’s Team Plumbing licensed vendors pipe fitters will install an iron/ black piping gas lines system, which will cost $250 per fixture connection each project can consist of $1500-$5500 pending on the number of fixtures for connection.

It is possible to bury the black gas pipe under the ground. It does need some protection, but because black iron pipes don’t have any protective coating, they are exposed to rust more readily. To prevent the soil from becoming moist, it must be painted over before burial Three- or six-foot long and accessible: The flexible connectors can’t go through walls, floors or ceilings, nor can they be concealed. The flexible connector length usually is limited to 3 feet except for gas ranges and clothes dryers. Piping runs concealed in finished spaces must be installed through the joists and protected from physical damage. Or be run in black or galvanized steel. Or you could box the pipe run and shield it. Also, a flexible appliance connector has a length limit of 6 feet. In short no, a gas pipe cannot be routed through a cavity wall from the ground level to the loft. “The Gas Safety (Installation and Use) Regulations (GSUIR) restrict any person from installing any part of any gas installation pipework in a cavity wall unless the pipe is to pass through from one side to the other.