Our illustrations provide a visual explanation of off mains drainage methods, building subsidence, water service pipe responsibility and drainage pipe responsibility.
It’s a serious problem and has many causes including leaking drains and sewers.
Click here to find out more about cesspits, septic tanks and sewage treatment plants.
Click here to see illustrations where we explain who is responsible for each water service pipe depending on the type of property.
Click here to see illustrations explaining drainage responsibility and drainage misconnection risks.
Helping business and domestic customers every day of the year
June 23, 2026
All aboard! Next stop industry leading subsidence training
Insurance professionals were on track to significantly boost their understanding of one of the most complex property maintenance issues by attending the Subsidence Forum Training Day....
May 21, 2026
Skills renewal vital to counter subsidence threat, Catalyst’s Paul Duddle tells conference
With more subsidence data available than ever before, having the right expertise to use...
April 21, 2026
Sniffer dogs, hidden leaks and why detection is not simple
Now is the time of year when water leaks can become more apparent. As...