How to price fitting a bathroom extractor fan
Fan, ducting, isolator, cable and core drilling: how to quote a bathroom extractor fan install in the UK.
For electricians in the UK. Prices checked November 2026.
Worked example
“Fit a bathroom extractor fan with timer through an outside wall, new hole needed.”
| Material | Qty | Cost | |
|---|---|---|---|
| 100mm extractor fan with timer | 1 | £32.00 | |
| 100mm wall duct kit with external grille | 1 | £15.00 | |
| 3 pole fan isolator switch | 1 | £9.00 | |
| 1.5mm 3 core and earth cable | 5 m | £7.50 | |
| 1.5mm twin and earth cable | 4 m | £3.80 | |
| Labour, 2.8 hours at £50.00/hour | £140.00 | ||
| Transport | £25.00 | ||
| Total | £232.30 |
Typical UK retail prices including VAT, November 2026. Not VAT-registered example; add 20% to the total if you are. Rate is an example: use your own.
Where the time goes
- Fit and wire extractor fan1.5 h
- Core drill wall for duct1 h
- Test0.3 h
Before you quote
- Core drilling a new hole is the slow part; check the wall type.
- A fan with an overrun timer needs a switched live and a three-pole isolator.
How the quantities are worked out
Each material is counted in the units merchants sell it in, with normal waste allowed, so you can order straight from the list. Labour is the on-site time for one competent tradesperson, including setting up, testing and clearing up. Change the measurements and the whole quote moves with them; that's what Quotable does for you on every job, with each material priced live at UK merchants.
Quote this job with today's prices
Type the job, check the lines, send a link your customer can accept and pay. Every material is priced live and linked to the product.