Every plumber spare. One catalogue.
Search by brand, appliance, model, or part number. If you only know "the white toilet button" — we'll find it.
Every spare, organised the way you work
Boiler Spares
PCBs, fans, heat exchangers, electrodes
Toilet & Cistern
Flush valves, fill valves, syphons, buttons
Shower Spares
Thermostatic cartridges, hoses, heads
Tap Spares
Cartridges, ceramic discs, aerators, O-rings
Bathroom Spares
Seat hinges, fixings, basin wastes
Cylinder Spares
Immersions, thermostats, PRVs, expansion vessels
Radiator & Heating
TRVs, lockshields, bleed valves, brackets
Controls & Valves
Diverter valves, zone valves, motorised heads
Enclosure Spares
Rollers, seals, hinges, magnetic strips
Water Heating
Elements, anodes, thermostats, gaskets
Fire & Cooker
Burners, thermocouples, ignitors, glass
Electrical Spares
Pumps, contactors, sensors, transformers
Identify the part. Fix it right.
Step-by-step UK guides for the parts plumbers order most — written by engineers, indexed for search.
- 6 min · Guide
Identify a shower cartridge
Identify any UK shower cartridge fast: Mira, Triton, Aqualisa, Grohe, Bristan. Match by valve shape, spline count and part number.
MiraTritonAqualisa - 7 min · Guide
Find your boiler PCB part number
Find the exact PCB part number for Worcester Bosch, Vaillant, Baxi, Ideal and Glow-worm boilers. Photos, label locations and swap tips.
Worcester BoschVaillantBaxi - 5 min · Guide
Replace a toilet flush valve
Swap any UK dual-flush valve — Geberit, Roca, Ideal Standard, Armitage Shanks, Wirquin. Sizing, seals and no-leak refit.
GeberitRocaIdeal Standard - 5 min · Guide
Identify a tap cartridge
Identify UK tap cartridges by diameter and spline: 35 mm, 40 mm, 25 mm ceramic discs. Bristan, Grohe, Franke, Reginox, Ideal Standard.
BristanGroheFranke - 8 min · Guide
Replace a boiler fan
Diagnose and replace a boiler fan on Worcester, Vaillant, Baxi, Ideal and Glow-worm combis. Fault code cross-references and OEM numbers.
Worcester BoschVaillantBaxi - 6 min · Guide
Fit a thermostatic radiator valve
Fit a TRV to a UK radiator: 15 mm and 22 mm sizing, bi-directional heads, Honeywell, Danfoss, Drayton, Myson.
HoneywellDanfossDrayton - 6 min · Guide
Replace an immersion heater element
Swap a UK immersion element on copper or unvented cylinders: 11" and 14", Backer, Santon, Heatrae Sadia and Megaflo compatibles.
BackerSantonHeatrae Sadia - 5 min · Guide
Identify a concealed cistern flush plate
Match Geberit, Roca, Grohe, Wirquin and TECE flush plates to the correct concealed cistern — pneumatic vs cable actuation.
GeberitRocaGrohe - 4 min · Guide
Replace a shower hose and head
Choose the right UK shower hose (1/2" BSP, 8 mm bore) and head. Mira, Aqualisa, Triton, Grohe fittings and flow rates.
MiraAqualisaTriton - 9 min · Guide
Diagnose a boiler fault code
Decode UK boiler fault codes: Worcester EA229, Vaillant F75, Baxi E133, Ideal L2, Glow-worm F22. Root cause and the spare you need.
Worcester BoschVaillantBaxi - 6 min · Guide
Replace a boiler diverter valve
Swap a Worcester, Vaillant, Baxi or Ideal diverter valve. OEM cartridge numbers, symptoms and refit torque.
Worcester BoschVaillantBaxi - 6 min · Guide
Replace a boiler expansion vessel
Replace or recharge a failed expansion vessel on Worcester, Vaillant, Baxi and Ideal combis. Sizing and pre-charge pressures.
Worcester BoschVaillantBaxi - 6 min · Guide
Replace a boiler pump
Diagnose and swap a Worcester, Vaillant, Baxi or Ideal boiler pump. OEM head numbers and PWM cross-references.
Worcester BoschVaillantGrundfos - 5 min · Guide
Replace a boiler flow sensor
Fit a new DHW flow turbine sensor on Worcester, Vaillant, Baxi combis. Symptoms: hot water lockout, cold flushes.
Worcester BoschVaillantBaxi - 5 min · Guide
Replace a boiler pressure sensor
Swap the low-water-pressure sensor on Vaillant, Worcester and Baxi boilers. Cures phantom F22/EA338 lockouts.
VaillantWorcester BoschBaxi - 8 min · Guide
Replace a boiler heat exchanger
Replace primary or plate heat exchangers on Worcester, Vaillant, Baxi and Ideal combis. Torque, gaskets, flushing.
Worcester BoschVaillantBaxi - 8 min · Guide
Replace a boiler gas valve
Fit a new gas valve on Worcester, Vaillant, Baxi and Ideal boilers. Honeywell VK4105, SIT 848 Sigma cross-refs.
HoneywellSITWorcester Bosch - 5 min · Guide
Replace a boiler ignition electrode
Swap ignition and flame rectification electrodes on Worcester, Vaillant, Baxi and Ideal boilers. Gap settings.
Worcester BoschVaillantBaxi - 5 min · Guide
Replace a boiler condensate trap
Fit a new condensate siphon trap on Worcester, Vaillant, Baxi and Ideal boilers. Cures E133/F28 recycling faults.
Worcester BoschVaillantBaxi - 4 min · Guide
Clear a frozen condensate pipe
Thaw a frozen condensate pipe safely and prevent recurrence. F28/EA338/E133 no-heat in cold snaps.
Worcester BoschVaillantBaxi - 4 min · Guide
Replace a boiler NTC sensor
Swap flow, return and DHW NTC sensors on Worcester, Vaillant, Baxi and Ideal boilers. Resistance charts.
Worcester BoschVaillantBaxi - 4 min · Guide
Replace a boiler auto air vent
Swap the AAV on Worcester, Vaillant, Baxi combis. Cures loss-of-pressure and gurgling faults.
Worcester BoschVaillantBaxi - 4 min · Guide
Replace a boiler PRV
Fit a new 3 bar PRV on Worcester, Vaillant, Baxi and Ideal boilers. Cures constant drip to the outside discharge.
Worcester BoschVaillantBaxi - 4 min · Guide
Replace a boiler flue seal
Renew flue O-rings and gaskets on Worcester, Vaillant, Baxi and Ideal boilers. Cures CO alarm nuisance trips.
Worcester BoschVaillantBaxi - 4 min · Guide
Replace a boiler siphon trap
Same as condensate trap but branded 'siphon' by Baxi, Ideal, Vaillant. Part numbers and fit sequence.
BaxiIdealVaillant - 3 min · Guide
Repressurise a boiler
Bring a UK combi boiler back to 1.2 bar cold. Filling loop use, safe limits, when NOT to repressurise.
Worcester BoschVaillantBaxi - 6 min · Guide
Replace a Worcester diverter cartridge
Specific guide for Worcester Greenstar diverter cartridge 87186445880. Symptoms, tools, refit torque.
Worcester Bosch - 6 min · Guide
Replace a Vaillant ecoTEC diverter
Full diverter assembly swap on Vaillant ecoTEC plus/pro. OEM 0020132682, motor head 178984.
Vaillant - 5 min · Guide
Replace a Baxi fan assembly
Fit Baxi 720873101 fan on 800/EcoBlue/Duo-tec ranges. Wiring, gasket and PCB reset.
Baxi - 7 min · Guide
Replace an Ideal Logic heat exchanger
Fit Ideal Logic primary heat exchanger 174485 and plate HEX 173418. Full flush required.
Ideal - 6 min · Guide
Replace a Mira thermostatic cartridge
Swap Mira 723, 902, 1613 thermostatic cartridges on Excel, Element and Combiforce showers.
Mira - 5 min · Guide
Replace a Triton T80 element
Fit a new heating element on Triton T80 Easi-Fit, Xr, Z and Pro-Fit models. Isolate, drain, seal.
Triton - 6 min · Guide
Replace an Aqualisa Quartz processor
Fit a new digital processor on Aqualisa Quartz digital showers. Wiring, commissioning and pairing.
Aqualisa - 5 min · Guide
Descale an electric shower
Safely descale the tank, element and solenoid on Mira Sport, Triton T80 and Bristan Glee electric showers.
MiraTritonBristan - 4 min · Guide
Fit a shower riser rail
Fix a Mira, Grohe or Hansgrohe riser rail to a tiled wall. Drilling, plugs and hose routing.
MiraGroheHansgrohe - 5 min · Guide
Replace a shower solenoid valve
Fit a new solenoid on Mira Sport, Triton T80si and Aqualisa Quartz digital showers. Symptoms and OEM refs.
MiraTritonAqualisa - 4 min · Guide
Replace a shower flow switch
Diagnose and fit a new flow switch on Mira, Triton and Bristan electric showers. Cures 'no heat, water flows' fault.
MiraTritonBristan - 4 min · Guide
Replace a shower diverter valve
Fit a new diverter on bath-shower mixers. Bristan, Ideal Standard, Grohe part numbers.
BristanIdeal StandardGrohe - 6 min · Guide
Fit a thermostatic mixer shower
Install a bar or concealed thermostatic mixer shower. TMV2 approval, pipe centres, first fix.
BristanGroheAqualisa - 5 min · Guide
Replace a shower pump
Fit a Salamander, Stuart Turner or Grundfos twin-impeller shower pump. 1.5, 2.0 and 3.0 bar sizing.
SalamanderStuart TurnerGrundfos - 5 min · Guide
Replace a toilet fill valve
Fit a bottom-entry or side-entry fill valve on UK cisterns. Fluidmaster, Torbeck, Siamp part numbers.
FluidmasterTorbeckSiamp - 6 min · Guide
Replace a toilet syphon
Fit a new syphon on a lever-flush close-coupled UK toilet. Dudley, Thomas Dudley Turbo, Ideal Standard.
Thomas DudleyIdeal StandardArmitage Shanks - 4 min · Guide
Fix a running toilet
Diagnose and fix a UK toilet that won't stop refilling. Fill valve, flush valve, seal or float — root cause guide.
FluidmasterGeberitRoca - 3 min · Guide
Replace a toilet seat
Fit soft-close or standard toilet seats. Hinge types, fixing centres and quick-release.
Ideal StandardRocaArmitage Shanks - 4 min · Guide
Replace a doughnut seal
Fix a leak between cistern and pan. Fit a new sponge doughnut seal on UK close-coupled toilets.
Ideal StandardArmitage ShanksRoca - 6 min · Guide
Replace a macerator pump
Swap a Saniflo, Sanicompact or Sanislim macerator. When to repair vs replace, motor and cutter parts.
SanifloGrundfosStuart Turner - 7 min · Guide
Fit a back-to-wall toilet
Install a back-to-wall WC pan onto a concealed cistern frame. Alignment, waste connection and bolt-through.
GeberitRocaGrohe - 3 min · Guide
Replace an inlet valve diaphragm
Fit a new diaphragm on Torbeck, Fluidmaster and Ideal Standard fill valves without replacing the whole valve.
TorbeckFluidmasterIdeal Standard - 4 min · Guide
Fix a leaking toilet cistern
Locate and fix a leaking cistern: overflow, inlet, doughnut seal, cracked pan or feed pipe.
FluidmasterGeberitRoca - 4 min · Guide
Replace a Geberit flush valve seal
Fit a new bell seal on Geberit UP320/UP720 flush valves. Cures constant trickle into the pan.
Geberit - 4 min · Guide
Replace a kitchen tap cartridge
Swap a Bristan, Franke, Grohe or Reginox kitchen mixer cartridge. 35 mm, 40 mm and swivel-spout O-rings.
BristanFrankeGrohe - 3 min · Guide
Replace a mixer tap O-ring
Fix a leaking swivel-spout mixer by fitting fresh EPDM O-rings. Sizing and lubricant.
BristanGroheFranke - 4 min · Guide
Fix a dripping tap
Cure drips on ceramic disc, quarter-turn and traditional rubber-washer UK taps. Water Regs compliant fixes.
BristanGroheFranke - 5 min · Guide
Replace a basin tap
Fit a new basin monobloc or pair of pillar taps. Flexi tail sizes, back-nut and sealing washer.
BristanGroheIdeal Standard - 5 min · Guide
Fit a monobloc mixer tap
Install a single-hole monobloc kitchen or basin mixer. Isolation, flexi tails and Water Regs compliance.
BristanGroheFranke - 2 min · Guide
Replace a tap aerator
Fit or descale a tap aerator. M22, M24 and M28 sizes. Fixes weak spitting flow.
NeoperlGroheBristan - 3 min · Guide
Replace a boiling water tap filter
Change the carbon block filter on Quooker, Fohen, Grohe Red and InSinkErator boiling water taps.
QuookerFohenGrohe - 4 min · Guide
Fit a quarter-turn tap headwork
Convert or replace 1/2" or 3/4" quarter-turn ceramic headworks on traditional UK pillar taps.
PeglerBristanDeva - 3 min · Guide
Bleed a radiator
Bleed air out of central heating radiators. Bleed key size, cold-top diagnosis and repressurising.
HoneywellDraytonDanfoss - 6 min · Guide
Balance a central heating system
Set lockshield valves to equalise flow across all rads. Cures rooms hot near boiler, cold far away.
HoneywellDraytonDanfoss
Showing 60 of 1,862 guides — see the full library.
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