What to look out for
There are a number of signs that a drain or sewer is blocked:
- the toilet or sink waste are not draining away, or is draining very slowly
- smell around drain covers
- liquid coming out from around the drain cover
What causes blockages?
There are many causes of blockages. Common causes are tree roots growing into the pipes, a build of soap or grease deposits and disposable nappies.
Sometimes the pipe can collapse or be squashed by the weight of soil above it. This has happened where houses were built in the 1960s or 70s and the pipes were made of a material called 'pitch fibre'.
What to do in the event of a blockage
Waste water pipes within your property boundary that serve only your house and are your responsibility. Should you have a blocked drain, toilet or clogged sink, you have hire a plumber to investigate and clear the blockage. If the blockage is on external pipes or drains but within the boundary of your property, you can hire an independent drainage company to investigate and clear it for you.
If a private sewer is blocked, you should contact Severn Trent to clear the blockage as they are responsible for sections of the sewers and pipe that you share with neighbours and the pipes outside your property boundary.
If your property is rented, you should contact your landlord to let them know about the issue. If you are a homeowner, you should contact your insurance company before looking for a drainage contractor in case they can assist.
If the council is called in to investigate a problem with a blocked pipe or drain in a privately rented property, legal notices can be served on the property owner requiring the pipe or drain to be unblocked, within a specified time.
If the blockage is not removed, the council can give instructions for the work to be carried out and recover costs from the property owner, along with administrative charges incurred by the council.
Most blockages can be cleared by rodding through the sewer from an access point such as an inspection chamber or a rodding eye. Sometimes, however, it is necessary for the sewer to cleared using a high pressure water jet system, which should only be done by a specialist contractor.