Replacing or installing a bathroom basin is usually a straightforward job when the existing plumbing is accessible and in working condition. Whether you’re fitting a new basin, replacing an old one, or installing a vanity unit, the labour involved mostly depends on how much adjustment is needed to the existing pipework.
Below is a general guide to labour costs for basin installation and replacement.
Basin Installation (Existing Pipework)
Installing a new basin where the hot and cold feeds and the waste pipe are already in place is normally a quick and simple job.
Typical labour cost: £90 — £160
Time: around 1–2 hours
Basin Replacement
Removing an existing basin and installing a new one usually takes slightly longer, particularly if fittings need adjusting or sealing.
Typical labour cost: £110 — £200
Time: around 1–2 hours
Vanity Unit Installation (With Basin)
Installing a vanity unit with a basin normally takes longer because the unit needs to be positioned, secured, and connected correctly inside the cabinet. Access to pipework inside vanity units can sometimes be restricted, which may increase the installation time.
Typical labour cost: £160 — £320
Time: around 2–4 hours
When costs can vary
The final price can vary depending on the condition of the existing plumbing and how accessible the work area is. Additional time may be required if:
the waste pipe needs replacing
hot and cold pipework needs adjusting
isolation valves need changing
fittings inside the unit need modifying
working space is limited
All prices shown are labour-only estimates intended as a general guide. The exact cost is confirmed once the job has been seen and the existing installation checked.
