Bathroom Leaking Into the Flat Below?

A bathroom leak into the flat below is stressful — a neighbour, a managing agent and possibly insurance all involved. We find the source, fix it, and give you a report.

✓ Experienced trades✓ Set, transparent prices✓ Instant AI quotes✓ Central London

Does this sound familiar?

  • A stain or drip appearing in the ceiling below
  • Damp along a bathroom wall or floor edge
  • Loose or lifting tiles and crumbling grout
  • A musty smell around the bath or shower
  • Water only appearing after a shower is used

Leak reaching a neighbour? Act quickly

The sooner we trace it, the less damage and the easier the insurance conversation. Send a photo now.

What's usually going on

  • Failed silicone or grout letting water behind tiles
  • Cracked waterproofing (tanking) under the shower
  • A leaking waste, trap or shower tray seal
  • A concealed pipe joint failing behind the wall

Bathroom leaks into a downstairs flat almost always come from failed sealant, failed waterproofing, or a leaking waste under the tray or bath. We trace which it is, repair it properly — not just re-silicone over the problem — and re-waterproof where needed.

Because these leaks usually involve a neighbour or managing agent, we can provide a written report of the cause and repair for insurance or to reassure the flat below.

Set prices

JobFrom
Leak diagnosis call-outfrom £160
Renew silicone & grout sealsfrom £280
Repair waste / tray sealfrom £180
Re-waterproof & re-tile wet areaby quote
Report for neighbour / insurerfrom £90

Set prices shown are typical starting points. You'll always get a fixed quote before any work begins — no hourly surprises.

Why call fixmyproperty.ai

Experienced trades, transparent set prices and a fixed quote before we start — never an open-ended hourly bill. We cover Mayfair, Marylebone, St John's Wood, Bayswater and Paddington, and we understand mansion blocks, porters and managing agents.

Related help

Frequently asked questions

Why is my bathroom leaking into the flat below?

The usual causes are failed silicone or grout, cracked waterproofing under the shower, or a leaking waste. We trace the exact source and repair it properly.

Will re-sealing the silicone fix it?

Sometimes, but often the water is getting past failed waterproofing behind the tiles, so re-siliconing alone won't hold. We identify the real cause first.

Can you provide a report for the downstairs neighbour or insurer?

Yes — we can supply a written report of the leak's cause and the repair, which helps with insurance and managing-agent conversations.

Get a set price today

Send a photo on WhatsApp for an instant price, or request a quote and we'll come back fast.