Blocked drain in Derby: who is responsible?
Before paying a private contractor, it is worth checking whether the blockage appears to be within your private drainage, the public sewer network or a highway drain.
Start with who is affected
Only your property?
A blockage confined to pipework serving only your property may be within private drainage for which the property owner is responsible.
Private drainage →Neighbours affected too?
If multiple properties are affected, the problem may involve shared or public sewer infrastructure. Severn Trent provides current guidance and reporting routes.
Public sewer →Road gully or highway?
Highway drains and gullies are handled separately by the local authority rather than as private household drainage.
Highway drainage →Private drains
Private drainage generally means pipework for which the property owner has responsibility. If a blockage is within that private system, a drainage contractor may be the appropriate route.
Public sewers
If the issue appears to involve the public sewer network, use Severn Trent's current blockage-reporting information rather than paying a private contractor to work on infrastructure outside your responsibility.
Check Severn Trent blockage guidance ↗
Road drains and gullies
A blocked road gully or flooding associated with highway drainage is a different issue from a private household drain. Derby City Council publishes the current reporting guidance for roads, drains and gullies.
What if you genuinely cannot tell?
Do not guess based on one symptom alone. The pipe layout and affected properties matter, and official guidance can change. Use the current Severn Trent and Derby City Council information above, or ask the attending professional to explain what evidence indicates responsibility.
Frequently asked questions
If my neighbour is affected, does that prove Severn Trent is responsible?
What if sewage is already flooding my property?
Can Derby Drain Link decide legal responsibility?
Looks like a private drainage problem?
Describe the symptoms and postcode so the enquiry can be routed to an independent drainage professional serving Derby.