Drain tile cleaning and repair

What drain tile does

Drain tile, also called perimeter drainage, collects water around the foundation. It is a different system from the household drains carrying wastewater from sinks and toilets. Knowing which system is affected helps keep the investigation focused.

Signs worth describing

Tell us about water near the wall-to-floor joint, a wet area that returns after rain, an overflowing exterior drain or a sump that seems to run more often. These observations help guide an assessment, but none proves that a perimeter pipe is blocked. Surface runoff, a plumbing leak and foundation defects can produce overlapping symptoms.

Inspection before a repair decision

Useful starting information includes drainage drawings, known access points, prior inspection reports and any past repairs. Ask what sections can actually be reached and inspected. If a camera cannot pass a restriction or there is no suitable access, the limitation should be explained before deciding on additional work.

Cleaning versus repairing the line

A restriction and a damaged pipe call for different responses. The cleaning approach needs to suit the pipe condition and access. Where damage is found, ask for the location, supporting observations and the proposed repair scope. Discuss any excavation, municipal requirements and surface restoration before approving the work.

Plan for the next wet season

Keep a record of findings and completed work so a future problem can be compared with the earlier condition. Ask for a maintenance plan based on the actual system. Burnaby’s flood-prevention guidance identifies debris and roots as potential perimeter-drain obstructions and recommends periodic inspection or cleaning; the right schedule for a property still depends on its condition.

Common questions