A full bathroom renovation in the UK typically costs £4,000–£10,000, depending on size, fittings, and whether any structural or plumbing work is involved. A simple refresh (new suite, tiling, fittings, no layout changes) sits at the lower end; moving plumbing or converting to a wet room pushes costs significantly higher.
Average Bathroom Renovation Costs
| Scope of Work | Typical Cost |
|---|---|
| Basic refresh (new suite, same layout) | £3,000–£5,000 |
| Mid-range full renovation | £5,000–£8,000 |
| High-end renovation (moved plumbing, premium fittings) | £8,000–£15,000+ |
| En-suite (smaller space) | £2,500–£5,000 |
| Wet room conversion | £5,000–£9,000 |
What Affects the Price?
Moving the plumbing. Keeping your toilet, sink, and bath/shower in their existing positions is far cheaper than relocating them, since moving waste pipes and water supply often means lifting floors and can require building control sign-off.
Fittings and finish level. A budget suite, standard tiles, and off-the-shelf fittings will cost a fraction of a bespoke vanity unit, natural stone tiling, and a walk-in shower enclosure.
Waterproofing (tanking). Proper waterproofing before tiling is non-negotiable for showers and wet rooms — skipping this is one of the most common (and expensive) mistakes, leading to leaks into the room below.
Ventilation and electrics. Bathrooms need proper extractor fans and electrics installed to current Building Regulations (Part P) standards — this is a legal requirement, not an optional extra, and should always be carried out or signed off by a qualified electrician.
Multiple Trades, One Job
A full bathroom renovation usually involves several different tradespeople — a plumber, a tiler, an electrician, and sometimes a plasterer — which is why it's often worth using a bathroom fitter who manages the whole job, rather than coordinating each trade yourself. It typically costs a similar amount either way, but saves you the hassle of scheduling and sequencing multiple people.
How Long Does a Bathroom Renovation Take?
A straightforward refresh with no layout changes usually takes 5–10 working days. A full renovation involving new plumbing, tiling, and waterproofing typically takes 2–3 weeks, allowing for tiling adhesive and grout to properly cure between stages. Be wary of any quote promising a full renovation in 2–3 days — rushed waterproofing and tiling are common causes of early failures.
Getting an Accurate Quote
A proper bathroom renovation quote should include:
- A full breakdown of labour vs materials/fittings
- Whether waste removal and skip hire are included
- Confirmation of Part P electrical compliance and Building Regulations notification if plumbing is being moved
- A realistic timeline, including drying/curing time for tiling
- What happens if hidden issues (e.g. damp, rotten floor joists) are found once work starts
Compare Bathroom Fitter Quotes
Bathroom renovation costs vary widely between tradespeople, so it's worth comparing more than one quote before booking. Post your job for free on Compare My Builder and get matched with verified local bathroom fitters.
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