The average cost to install a new gas line to a stove is approximately $15 to $25 per linear foot, according to CostHelper. Additional costs include obtaining a permit to install and test the gas line, which is approximately $100.
Some local gas companies install a new gas line for free. If the company does not provide free installation, it may install the line at a flat rate and charge monthly payments to the gas bill until the fee is paid in full. Because cost is based on linear foot, the cost for additional materials and labor will increase the installation cost.