Sewer and Drain Leak Detection in Duncan, BC

Sewer and drain leaks are particularly insidious because they involve wastewater rather than clean water, introducing health hazards and environmental concerns alongside property damage. British Columbia properties with aging cast iron or clay sewer laterals, root-intruded drain lines, or improperly sloped DWV (drain-waste-vent) systems are at elevated risk. A leaking sewer line can contaminate groundwater, create soggy areas in the yard with unpleasant odours, and in severe cases, cause sewage backup into the building. At LeakInspection.ca, we offer comprehensive sewer and drain leak detection services that combine CCTV video inspection with flow testing and tracer gas methods.

Our primary diagnostic tool for sewer and drain lines is the video pipe inspection camera. We deploy high-resolution, self-levelling pipeline inspection cameras that travel through the pipe, transmitting real-time video to our technician's monitor. This allows us to visually assess the interior condition of the pipe — identifying cracks, breaks, root intrusions, offset joints, bellied sections, and blockages. The camera head records the distance travelled, allowing us to mark the exact location of any defect on the surface above. For pipes that are not fully surcharged, we also conduct dye testing and smoke testing to confirm flow paths and identify illegal connections or cross-contamination.

For sewer laterals and drains that do not show active flowing water during inspection, we perform hydrostatic pressure testing or tracer gas testing to confirm system integrity. These tests involve sealing the system and introducing either water or gas to identify escape points. We also conduct flow tests to measure drain capacity and identify partial blockages that may cause recurring backups. Our combined approach — CCTV, flow testing, and integrity testing — provides a complete assessment of the drain system's condition, enabling property owners to make informed decisions about repair, relining, or replacement. All inspections are documented with video recordings, annotated still images, and a written report with condition assessments and recommendations.