Find the source before arguing responsibility
In a block of flats, water may pass through floors, risers and service voids before it appears. The responsible party usually depends on whether the leak comes from private pipework, a neighbouring flat, landlord-owned fittings or shared building pipework.
Who may need to be involved
- The occupier of the affected flat.
- The flat above or next door.
- The landlord or letting agent.
- The managing agent or concierge.
- The building insurer or home insurer.
What a plumber can do
A plumber can make the area safe, isolate the water where possible, check likely sources and explain what needs access. Clear notes and photos can help later conversations with landlords, neighbours or insurers.
This is practical plumbing guidance, not legal advice. Responsibility depends on leases, tenancy agreements, insurance terms and the confirmed source of the leak.
Why leak detection helps
Guesswork can lead to blame being pushed around the building. A targeted leak detection visit helps establish whether the issue is a bathroom leak, heating leak, waste pipe, mains water pipe or communal riser.