What causes blocked drains in Bristol homes?
Most blockages come from what goes down the pipe, but the age of the drain and the street it sits in play a part too.
- Fat, oil and grease from cooking, which cools and sets inside the pipe.
- Wipes. Even the ones sold as flushable do not break down like toilet paper.
- Hair and soap in shower and basin wastes.
- Tree roots that find the gaps in the joints of old clay drains, common behind Victorian terraces.
- Leaves and silt clogging gullies, especially in autumn on tree-lined streets.
- Limescale narrowing waste pipes in a hard water area.
- Damaged pipe, where a section has cracked or slipped and catches debris.
In terraces and converted flats, one shared drain can serve several homes, so a blockage further along can back up into yours.

