Friars PlumbcraftFriars Plumbcraft
Toilet Cistern Mechanism and Seal Overhaul

Toilet Cistern Mechanism and Seal Overhaul

Suited to domestic homes and business premises where water trickles down the pan, the cistern takes ages to fill, or the floor seal leaks. We strip out worn siphons, float valves, and disintegrating close-coupled foam washers, replacing them with commercial-grade brass or heavy-duty plastic mechanisms. Your toilet flushes crisply and fills quietly without trickling into the bowl.

All services
£80per toilet

What is included

  • ✓Dual-flush drop valve and siphon replacements
  • ✓Brass-shank quiet fill float valve installation
  • ✓Close-coupling plate and doughnut washer renewal
  • ✓Pan connector flexible seal replacements
  • ✓Cistern isolation valve fitting
  • ✓Internal overflow height and leak calibration

Book a Local Plumber

Tell us what needs fixing and we will get back to you promptly with availability and price estimates.

Call back within one business day. Free consultation. No spam, no obligations.

Why Chester Residents Call Friars Plumbcraft

Cuts unmetered water waste

A continuously running internal overflow can push water meter readings up by several hundred litres every week.

Quiet, fast tank refill

Equilibrium fill valves eliminate the loud whistling and hissing pipes common after flushing older tanks.

Prevents rot under flooring

Replacing cracked close-coupled washers stops damp seeping beneath floor tiles and decaying timber joists.

How Your Repair Works

  1. 1Cistern drainage and uncouplingWe isolate the cold feed, sponge out the remaining water, and unbolt the ceramic cistern from the pan or wall bracket.
  2. 2Mechanism swap and seal replacementWe remove seized rusted wing nuts, fit a new heavy-duty rubber doughnut washer, and install a brass-shank fill valve.
  3. 3Fill test and dye leak checkWe bolt the cistern down square, set the water level to the mark, and conduct a dye test to ensure zero seepage into the bowl.

Need a Reliable Plumber on the Job?

Send a short message with your plumbing issue or call our White Friars office. We will call you back within two hours to agree on a sensible visiting time.