New tap has been selected
Check mounting size, pressure suitability, tails and valve positions. Until the appointment, keep packaging and do not remove the working tap.
CHELSEA · SURVEY THE CONNECTIONS BEHIND THE NEW FITTING
Before a fixture upgrade, the existing supplies and wastes need to be understood. A new basin, tap or shower component should not be chosen until connection sizes, valve condition and usable access have been measured.

SURVEY THE CONNECTIONS BEHIND THE NEW FITTING
Mounting holes, tails, valve condition and waste position decide compatibility. Protect retained finishes while those dimensions are taken.
Check mounting size, pressure suitability, tails and valve positions. Until the appointment, keep packaging and do not remove the working tap.
Clean and test the trap and outlet through a full bowl release. Until the appointment, empty the vanity and photograph any fresh moisture.
Inspect spindle, outlet and upstream isolation options. Until the appointment, do not force it solely to prepare for installation.
Record make, dimensions and accessible cartridge details. Until the appointment, avoid ordering from appearance alone.
Product dimensions, protected finishes and permission for any necessary access. Operate each reachable control and inspect neighbouring pipe for movement or staining. A smart new tap cannot compensate for an unsound connection. Operate each reachable control and inspect neighbouring pipe for movement or staining. A smart new tap cannot compensate for an unsound connection.
Follow service valves, pipe condition and waste position behind the proposed fitting. Name the selected fitting and adapters after measurement. Any valve shutdown, access opening or finish repair should be explicit rather than assumed.
TEST OLD SERVICES BEFORE LOADING THEM WITH NEW PARTS
Operate each reachable control and inspect neighbouring pipe for movement or staining. A smart new tap cannot compensate for an unsound connection.
| What has been noticed | What can be compared | What to do for now |
|---|---|---|
| New tap has been selected | Check mounting size, pressure suitability, tails and valve positions | Keep packaging and do not remove the working tap |
| Basin waste shows old staining | Clean and test the trap and outlet through a full bowl release | Empty the vanity and photograph any fresh moisture |
| Service valve is difficult to turn | Inspect spindle, outlet and upstream isolation options | Do not force it solely to prepare for installation |
| Shower control is hard to match | Record make, dimensions and accessible cartridge details | Avoid ordering from appearance alone |
QUOTE INSTALLATION AND ENABLING WORK SEPARATELY
Mounting holes, tails, valve condition and waste position decide compatibility. Protect retained finishes while those dimensions are taken. Operate each reachable control and inspect neighbouring pipe for movement or staining. A smart new tap cannot compensate for an unsound connection.
Name the selected fitting and adapters after measurement. Any valve shutdown, access opening or finish repair should be explicit rather than assumed. Name the selected fitting and adapters after measurement. Any valve shutdown, access opening or finish repair should be explicit rather than assumed. Operate each reachable control and inspect neighbouring pipe for movement or staining. A smart new tap cannot compensate for an unsound connection.

QUOTE INSTALLATION AND ENABLING WORK SEPARATELY
Name the selected fitting and adapters after measurement. Any valve shutdown, access opening or finish repair should be explicit rather than assumed.
Fit the measured tap to sound connections. Name the selected fitting and adapters after measurement. Any valve shutdown, access opening or finish repair should be explicit rather than assumed. Do not specify an upgrade from appearance alone: renew tails or valves when condition or compatibility requires it.
Reseal or replace correctly aligned visible fittings. Name the selected fitting and adapters after measurement. Any valve shutdown, access opening or finish repair should be explicit rather than assumed. Do not specify an upgrade from appearance alone: alter concealed waste only if inspection finds poor fall or damage.
Replace a failed accessible valve during controlled isolation. Name the selected fitting and adapters after measurement. Any valve shutdown, access opening or finish repair should be explicit rather than assumed. Do not specify an upgrade from appearance alone: plan a wider shutdown separately where no local control exists.
Service with an identified compatible part. Name the selected fitting and adapters after measurement. Any valve shutdown, access opening or finish repair should be explicit rather than assumed. Do not specify an upgrade from appearance alone: refer concealed waterproofing or proprietary system work as needed.
A ROUTE THAT CAN BE HANDED OVER
Keep the proposed tap, basin or control specification with its dimensions and operating requirements. A catalogue image cannot show clearance beneath the existing fixture.
Inspect service valves, tails, waste alignment and the nearest visible pipe. Record staining, movement or corrosion before any component is disconnected.
Name the surfaces that need covering and the access that has been authorised. Specialist stone, joinery or decoration may need its own contractor.
Use a proven local valve where possible; otherwise arrange the wider shutdown before committing to removal of a working fitting.
Support the new assembly and use compatible connections. Do not pull old pipework into position merely to meet a different product geometry.
Run hot and cold water, fill and empty the basin where relevant, and inspect every disturbed joint before closing the working area.
RETAIN SOUND CONNECTIONS
The practical question is whether the existing connection can support a durable local repair. Parts elsewhere in the room are not renewed simply because access has been obtained.
fit the selected tap only after the mounting, tail length and valve outlets have been measured. If the finding extends beyond it, pause the installation if an old valve or pipe end cannot accept a sound connection.
renew the stained or distorted seals and align the trap without strain. If the finding extends beyond it, review the branch position where repeated movement would load the new joint.
replace a failed accessible control during an agreed shutdown. If the finding extends beyond it, plan building or upstream isolation separately when the local valve cannot be trusted.
use an identified service part that suits the installed body. If the finding extends beyond it, keep waterproofing, proprietary panels and concealed system work outside an assumed repair.
COST THE KNOWN ROUTE
The estimate should follow measured access, the isolation actually available and the component identified during testing. Anything needing a second occupier, building approval or a separate finish is stated apart.
| Connection | Starting instruction | Reason for wider work |
|---|---|---|
| tap body and tails | fit the selected tap only after the mounting, tail length and valve outlets have been measured | pause the installation if an old valve or pipe end cannot accept a sound connection |
| basin waste assembly | renew the stained or distorted seals and align the trap without strain | review the branch position where repeated movement would load the new joint |
| local service valve | replace a failed accessible control during an agreed shutdown | plan building or upstream isolation separately when the local valve cannot be trusted |
| shower control | use an identified service part that suits the installed body | keep waterproofing, proprietary panels and concealed system work outside an assumed repair |
Name the valve that was proved and any users affected by its operation.
Identify the cupboard, panel or room that must remain available until testing ends.
Record dimensions and connection type before the final fitting is ordered.
Allocate protection, drying and reinstatement without hiding them in the pipe repair.
ONE OWNER FOR EACH TASK
The plumbing instruction ends with a functional test. Shared infrastructure, locked spaces and decorative work move forward only with a named approver and their own completion check.

PREPARE WITHOUT DISMANTLING
Keep fixed covers and connections assembled. Add the timing and water activity in writing, because the image records condition but not sequence.
DECISIONS BEFORE AUTHORISATION
The answers below keep parts, access and completion tied to the property evidence.
Not reliably. The mounting hole, available space, tail connection, pressure suitability and valve position need measurement. Keep the product reference available for comparison.
Removing an old tap can disturb tails or valves that have not moved for years. Their condition determines whether the new installation can be isolated and sealed dependably.
No. Leave it in its present position and identify an upstream control. Excess force can create a leak before the planned shutdown is ready.
The outlet, overflow, trap joints, alignment and branch are tested through controlled filling and discharge. Old staining is cleaned so fresh moisture can be distinguished.
Agree that before work starts. The plumbing quote should identify the necessary opening; protection, specialist removal and reinstatement can then be assigned clearly.
No. Concealed body type, dimensions, service parts and operating requirements matter. Identification should precede ordering or opening proprietary panels.
List the chosen fixture, compatible connectors, water isolation, authorised access and functional tests. Show any valve renewal or finish work as a separate decision.
Operate both supplies and move the tap through normal use while the connections remain visible. Check the valve outlets and adjoining joints before the cupboard is refilled.
Only when the inspected pipe cannot provide a sound supported connection, or when damage extends beyond the immediate fitting. The reason and extent should be stated.
Keep the product reference, isolation used, connections altered and test result. Add any care instruction or outstanding specialist work without claiming uninspected pipe is new.
RELATED ROUTES
Use the general plumbing hub for water parts and pipework, then shift to a specialist service when the checked network falls beyond that scope.
NEARBY PLUMBING AREAS
The closest useful guide is the one covering the job address. Check it for local property context, photographs and isolation details to provide.
ROOM REFERENCE
The map identifies the district for booking context only. It does not verify a fault, price or arrival time; send the whole building address and access course privately.
EVIDENCE FOR THE EARLIEST CALL
For Chelsea, list the relevant outlet, normal-use routine, present water state, established isolation, premises run and coordinator authorised to approve the next step.
