Installing or replacing a kitchen sink usually involves plumbing connections as well as fitting the sink securely into the worktop. The time required depends on the type of sink, access under the worktop, and whether the waste pipe or tap connections need adjusting. Some installations are straightforward, while others require more preparation and careful fitting.
Below is a general guide to labour costs for kitchen sink installation and replacement.
Kitchen Sink Replacement
Replacing an existing kitchen sink using the same worktop opening and pipe connections is normally a manageable job when access under the sink is clear.
Typical labour cost: £140 — £260
Time: around 2–3 hours
New Kitchen Sink Installation
Installing a kitchen sink where pipework or waste connections need adjusting may take longer depending on the setup and the type of sink being fitted.
Typical labour cost: £200 — £360
Time: around 3–5 hours
Sink Waste & Trap Replacement
Replacing the waste fitting or trap under a kitchen sink is usually a smaller plumbing job when access is straightforward.
Typical labour cost: £80 — £150
Time: around 1 hour
Undermount Sink Installation
Installing an undermount sink can take longer because the sink must be secured correctly beneath the worktop and sealed properly to prevent leaks.
Typical labour cost: £220 — £400
Time: around 3–5 hours
When costs can vary
Kitchen sink installation can take longer depending on the condition of the existing plumbing and accessibility under the sink. Additional time may be required if:
pipework needs adjusting
the worktop needs cutting or modifying
taps need installing or replacing
waste connections need replacing
access inside cabinets is limited
All prices shown are labour-only estimates intended as a general guide. The final cost is confirmed after seeing the job and checking the existing installation.
