Burst Pipe Repair London — Causes, Signs & Fixes

Frozen pipes in winter

The most common cause of burst pipes in London. When water freezes in an uninsulated pipe, it expands and splits the pipe wall. The burst often appears when the pipe thaws. Loft pipes, external walls and unheated areas are most at risk.

Corrosion over time

Copper pipes corrode from the inside, thinning the wall until pressure causes a split. Common in Victorian and Edwardian properties with original pipework.

Physical damage

Nails, screws, or drill bits during renovation work accidentally pierce concealed pipes. Water may not appear immediately if the pipe is in a wall or floor.

High water pressure

Sustained water pressure above 3.5 bar can fatigue pipe joints and fittings over time. A PRV set correctly prevents this.

Poor original workmanship

Compression fittings not properly tightened, or push-fit fittings incorrectly inserted, fail under sustained pressure.

What should I do first if a pipe bursts?

1) Turn off the mains stop tap immediately (under kitchen sink, clockwise). 2) Turn off electricity at the consumer unit if water is near electrics. 3) Open a cold tap to drain the system. 4) Call RARE on 020 7458 4949.

How long does a burst pipe repair take?

Once our engineer arrives, most accessible burst pipe repairs take 1–2 hours. Concealed pipe bursts may require locating first — allow 2–4 hours total.

Does home insurance cover burst pipes?

Most UK buildings insurance policies cover burst pipe damage. Photograph everything before cleanup, keep all receipts, and call your insurer the same day. RARE can provide a detailed report for insurance purposes.

My pipe burst in the night — what do I do?

RARE is available 24/7 including nights and bank holidays. Call 020 7458 4949 at any time. We target a 2-hour response for emergencies.