Why roots invade drain pipes
Tree roots naturally seek out moisture and nutrients, making drain pipes an ideal target. Even the smallest crack or joint in an underground pipe can attract roots, as they sense the water flowing through. Once they find a way in, roots quickly expand, creating a dense network that blocks water flow and traps debris. Over time, this growth becomes more aggressive, often leading to serious obstructions and even structural damage to the pipes themselves.
In urban areas with older drainage systems, this problem is particularly common. Many homes and businesses rely on clay or concrete pipes, which are more prone to cracking and joint failures. As trees grow, their roots extend further in search of resources, increasing the likelihood of encountering these vulnerable pipes. Recognising this natural behaviour is the first step in preventing costly repairs and maintaining a healthy drainage system.