Homes, terraces and shared drains
In terraces, maisonettes and blocks of flats, several homes often share one run of pipe, so a blockage in one can back up into another. That is when it matters most to know where the fault sits. We open the nearest chambers, find where the water stops moving and clear from there with high-pressure jetting.
If the same drain blocks again within weeks, clearing it only treats the symptom. Roots, a displaced joint or a dip in the pipe will keep catching paper and fat. A CCTV drainage survey finds the cause, so you can decide what to do about it.
About drain unblocking