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Swift 24/7 Plumbing & Heating

Ball valve replacement in South West London

A ball valve, also called a float valve or fill valve, controls the water filling a toilet cistern or loft tank. Swift 24-7 Plumbers repairs and replaces ball valves across South West London, stopping overflows, constant refilling and noisy cisterns, usually in a single visit.

Plumber adjusting the fill valve inside a toilet cistern

Signs your ball valve has failed

  • Water is dripping or running from an overflow pipe on the outside wall.
  • The toilet cistern keeps filling, hisses or never seems to stop.
  • The cistern fills very slowly or not at all.
  • You hear banging pipes (water hammer) when the cistern refills.
  • The cold water tank in the loft is overflowing or running low.

A dripping overflow is worth fixing quickly, because a constantly running valve wastes a surprising amount of water and an overflow that blocks or freezes can flood a loft.

Repair or replace?

Older brass ball valves can sometimes be repaired with a new washer or diaphragm. In most cases it is better value to replace the valve with a modern quiet-fill valve, because modern valves are quieter, more reliable and easy to adjust. We match the replacement to your cistern, whether it is side-entry or bottom-entry, and to your water pressure.

What is included

  1. Isolating the water supply and draining the cistern or tank.
  2. Removing the old valve and fitting the correct replacement.
  3. Setting the water level so the cistern or tank stops below the overflow.
  4. Checking the overflow pipe and flush mechanism while we are there.

Ball valve replacement

Common questions

Why is my overflow pipe dripping outside?

A dripping overflow pipe usually means a ball valve in a toilet cistern or loft tank is not shutting off. The valve washer or diaphragm has worn, or the float is set too high. Replacing or adjusting the valve stops the overflow.

Can you fix a noisy cistern?

Yes. Hissing, whistling and banging when a cistern refills are usually caused by an old-style ball valve. Fitting a modern quiet-fill valve normally solves the noise.

Reviews

Trusted by homeowners across South West London

“Top-knotch service from Gavin and his company. Excellent communication throughout. The job was to replace the old boiler thermostat and it went speedily and well. Gavin is cheerful, efficient and very helpful. I'm definitely having him back to install my new bathroom.”

Christine TaylorBoiler thermostat replacement

“Gavin came round to take a look at our leaky toilet at short notice. He came back and fixed it two days later and did a great job. We are very happy with the work he did and will definitely call him again if we need a plumber.”

Karen HewisLeaking toilet repair

“Gavin is always on time and so helpful in giving you information in 'layman's language' to understand the problem you are facing.”

Sally Price

Book ball valve replacement

Ball valve replacement near you

We cover ball valve replacement in Putney and across South West London, including:

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