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Does home insurance cover blocked drains?
The short answer
Standard home insurance rarely pays to clear a blockage. Home emergency cover does, and your water company is responsible for shared and public sewers — which means many blockages cost you nothing at all.
Who owns which drain
Since 2011 in England and Wales, drains serving more than one property, and the sewer beyond your boundary, are the water company's responsibility. Call them first — clearing is usually free.
The private drain inside your boundary serving only your home is yours to maintain.
What each policy does
Home emergency cover: sends an engineer to clear a blocked drain or toilet, subject to a per-claim limit and often an initial 14–30 day waiting period.
Buildings insurance: covers damage caused by a collapsed or damaged drain in some policies, and damage inside the home caused by backing-up water, but not routine unblocking.
Preventing a decline
Blockages caused by wipes, fat or root ingress that's been building for years are treated as maintenance. Keep any CCTV drain survey report — it decides most disputes.
Check these on your own policy
- Call the water company before paying anyone
- Check whether home emergency cover is on your documents
- Ask for a CCTV survey if the blockage keeps returning
- Photograph any internal damage from backing-up water
Common follow-up questions
Are blocked drains covered in Scotland?
Scottish Water is responsible for public sewers; private drainage within your boundary remains yours. The insurance position is the same.
Is a blocked toilet an emergency?
Under most home emergency policies yes, if it's your only toilet — that usually triggers a faster response.