If two plumbers have already snaked the drain and the blockage keeps returning, it likely means the root cause hasn’t been identified. Snaking is more of a temporary fix—it clears the pipe but doesn’t explain why the clog keeps forming.

That’s where a CCTV survey from drain unblocking London can be more effective. It lets professionals see inside the pipes and find the exact issue, whether it’s damage, buildup, or something else.

While it costs more upfront, it can save money in the long run by fixing the real problem instead of repeatedly treating the symptoms.