Cost of Replacing a Tap in the UK (2025)
Replacing a tap costs £80–£200 in labour. A mixer tap replacement typically takes 1–2 hours and costs £100–£200 all-in if you supply the tap.
Labour only vs supply and fit
If you choose your own tap (from Screwfix, B&Q, or a plumbing merchant), the plumber will charge labour only — typically £80–£150 for a straightforward swap. If you want the plumber to supply and fit, they will source a tap at trade price and add a margin. You'll have less choice but the convenience of a single invoice.
When does a tap need replacing?
Dripping taps can often be repaired by replacing the washer or cartridge — this costs less than a full tap replacement. However, older taps (particularly those with corroded fittings or difficult-to-source parts) are often cheaper and more practical to replace outright. A plumber can advise on repair vs replace on a visit.
Cost Breakdown
All prices are indicative UK averages for 2025. Actual costs vary by location, specification, and contractor. London and South East rates are typically 20–35% higher.
| Item | Low | High |
|---|---|---|
| Single tap replacement (labour only) | £80 | £150 |
| Mixer tap replacement (labour only) | £100 | £200 |
| Tap repair (washer/cartridge) | £60 | £120 |
| Bath tap replacement (supply & fit) | £150 | £350 |
| Kitchen mixer tap (supply & fit) | £200 | £450 |
| Outdoor tap installation | £100 | £250 |
What Affects the Cost?
- ✓Type of tap — single, mixer, or monobloc
- ✓Location — kitchen, bathroom, or outdoor
- ✓Whether pipework needs adjusting or connectors replacing
- ✓Whether an isolation valve is present (if not, cost increases)
- ✓Ease of access under the sink
- ✓Location — London and South East plumber rates are higher
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Post a Job — It's FreeFrequently Asked Questions
Can I replace a tap myself?
Yes — if you are comfortable turning off the water supply and using basic tools, replacing a tap is within DIY capability. However, if you are unsure or the pipework is older, calling a plumber avoids costly mistakes.
How long does tap replacement take?
A straightforward tap swap takes 30–90 minutes. If isolation valves need replacing or pipes need adjusting, allow 2–3 hours.
Do I need an isolation valve for my tap?
Yes — isolation valves allow the water supply to the tap to be turned off without turning off the whole house. If there isn't one, a plumber will usually fit one at the same time as replacing the tap.