Your home’s sewer line is a critical part of your plumbing system that quietly carries wastewater away from your property — until something goes wrong. In Calgary’s unique climate, aging infrastructure, and shifting soils, sewer lines can develop serious issues that require more than a simple fix. Knowing the signs you need sewer line replacement can save you time, money, and prevent costly damage to your yard, foundation, and plumbing system. From persistent clogs and foul odors to soggy patches in your lawn and recurring backups, recognizing these warning signals early helps you take action before a minor problem turns into a major emergency.