Who is responsible for a blocked sewer or drain?

A change in the law in October 2011, the sections of sewers and pipe that you share with neighbors and pipes outside your property boundary, which connect to our existing network, are now the responsibility of the local water company. The diagram below will make things a little clearer.

The local water and sewage company for Bristol, Bath and surrounding areas is Wessex water www.wessexwater.co.uk If you need to find for your local area www.water.org.uk/home/our-members/find-water-company

Ownership of sewers
Sewer responsibility

Drains “A drain is a pipe that drains water and waste from a building with in the property boundary” Are the responsibility of the home owner except where you share with your neighbors (see diagram)

Lateral drain “A lateral drain is a pipe which lies outside of your property boundary it carries waste water away from a building” are publicly owned and should be maintained by the local water company with in your area
Sewer “A sewer collects water and waste from the lateral drains of buildings” are normally publicly owned and should be maintained by the local water company with in your area.

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