When you need to know exactly where your drains run and how they connect, drain mapping and tracing gives you the answer. Drainage systems are often undocumented, altered over the years, or simply unknown — so our surveyors trace the full route of your pipework, identify connections and chambers, establish depths and directions of flow, and map how the whole system fits together. Using advanced sonar, electromagnetic tracing, and CCTV, we turn an invisible network into a clear, accurate plan. It’s essential before construction or excavation, for resolving responsibility between private drains and public sewers, and for supporting build-over and planning applications. Where you need it, we produce detailed AutoCAD drainage drawings from the survey data, giving architects, developers, and engineers documentation they can rely on.