Reviewed, sourced guidance
Plumbing installation cost context
Direct answer
Checkatrade’s guide, updated May 2026, lists plumbing a bathroom at £2,700 to £4,000 (average £3,250, excluding sanitaryware), a WC at £1,200 to £1,800, and whole-house plumbing from £13,000 to £24,000 depending on bedrooms. Its hourly rate range is £40 to £60, or about £110 for out-of-hours work. These are its ballpark averages, not quotes.
Published cost ranges give orientation before you collect quotes. These are one publisher’s estimates, dated and attributed, never a quotation.
Key takeaways
- Ranges are one publisher’s ballpark averages, dated May 2026.
- Average figures exclude sanitaryware supply.
- Hourly context: £40 to £60, about £110 out of hours.
- Compare quotes on written scope, never on averages.
The published installation ranges
Checkatrade’s plumbing installation cost guide, updated May 2026 and stated by that publisher to be checked by MRICS and MCIOB-qualified estimators, gives the ranges in the table.
Its own labels matter: the figures are “ballpark averages”, bathroom and ensuite figures exclude the supply of sanitaryware, and finishing work such as tiling, plastering and making good is usually excluded.
| Job | Low | High | Publisher average |
|---|---|---|---|
| Plumbing a bathroom (excl. sanitaryware) | £2,700 | £4,000 | £3,250 |
| Plumbing an ensuite (excl. sanitaryware) | £2,400 | £3,000 | £2,700 |
| Plumbing a WC (excl. sanitaryware) | £1,200 | £1,800 | £1,500 |
| Plumbing a 2-bed property | £13,000 | £16,000 | £14,500 |
| Plumbing a 3-bed property | £17,000 | £21,000 | £19,000 |
| Plumbing a 4-bed property | £19,000 | £24,000 | £21,500 |
Sources for this section: Checkatrade, plumbing installation cost guide (observed 2026-09-25; publisher estimates)
Hourly rates and small jobs
The same guide gives plumber hourly rates of around £40 to £60, rising to about £110 per hour for emergency or out-of-hours work.
For larger jobs it notes many plumbers quote for the whole job rather than by the hour, which makes totals easier to compare in writing.
One dated example for small work: replacing a burst pipe is put at around £100 and about two hours. Treat these as that publisher’s observations, not your quote.
Sources for this section: Checkatrade, plumbing installation cost guide (observed 2026-09-25; publisher estimates)
What the publisher says moves the price
Checkatrade names job size, property size and age, access difficulty, waste-pipe changes, fixture quality, location and excluded finishing work as the main price drivers.
Its guidance adds that moving a bathroom or kitchen costs more than replacing like for like, and that concealed pipework costs more than surface-mounted runs.
Sources for this section: Checkatrade, plumbing installation cost guide (observed 2026-09-25; publisher estimates)
Using context without misusing it
Do not average these figures with another publisher’s; scope and dates differ, so an average would be invented precision.
Use the ranges only to sanity-check written quotes: a quote far outside the relevant band is a prompt to ask what scope differs, not a verdict.
Then run each written quote through the comparator and check registrations before anyone books work.
Next steps
- Collect itemised written quotes and compare them in the comparator, field by field.
- Recheck the cited guide for updates before relying on any figure.