That depends. We recommend calling Alberta 1 Call or use their website to order free locates to verify if the gas line runs underneath a proposed garage. Once you verified the gas line is located underneath your proposed garage you need to ensure if it's sleeved. You may do that by calling ATCO GAS. If the gas line is sleeved, you have nothing to worry about and you may build your proposed garage. If the gas line is not sleeved, you have 2 options. 1. Get the line relocated. 2. Get the line sleeved. We can help you to suggest the right option for you as well as arrange this procedure with ATCO gas. The cost for this procedure could range anywhere from $2,000 to $4,500 depending on the nature of your lot, length of gas line etc.