Are drainage engineers available at night and at weekends?

Out-of-hours calls are typically sewage backing up indoors, an overflowing manhole, a completely blocked toilet in a single-bathroom home, or a commercial kitchen that cannot trade until the drain runs.

While you wait, stop using water in the property. Every flush and every sink of water adds volume to a system that cannot take it.

Call rather than message out of hours — the phone is answered by someone who can dispatch an engineer.