Ensuite bathroom renovation cost in the UK
An ensuite bathroom renovation in the UK typically costs between £3,500 and £8,500, with most homeowners spending around £5,000–£6,500 for a refit of a standard 3–4 m² ensuite. Adding a brand-new ensuite into an existing bedroom (rather than refitting one) usually runs £5,500–£12,000 once new walls, soil runs and ventilation are included.
Homeowners researching this typically also price up bathroom renovation cost in the uk, small bathroom renovation cost in the uk and shower installation cost in the uk. For wider context, browse our kitchen pricing, boiler & heating costs and trades day rates.
Cost table
| Item | Typical range (GBP) |
|---|---|
Refit (existing ensuite, like-for-like) | £3,500–£6,000 |
Refit with upgraded shower & tiling | £5,000–£8,500 |
New ensuite into bedroom (stud walls + plumbing) | £5,500–£12,000 |
Luxury ensuite (wet room, underfloor heating) | £8,500–£15,000 |
Labour costs
Labour usually accounts for 45–55%. New ensuites add stud wall, ventilation ducting and longer plumbing runs.
| Item | Typical range (GBP) |
|---|---|
Plumber (first & second fix) | £1,000–£2,400 |
Tiler (walls + floor, 10–18 m²) | £600–£1,500 |
Electrician (Part P, lights, fan, shaver point) | £350–£900 |
Stud wall + door (new ensuite only) | £600–£1,500 |
Plasterer | £250–£600 |
Decorator | £150–£400 |
Materials costs
Compact ensuite suites and slim shower enclosures cost similar to small bathrooms; the cost driver is glass quality and tap brand.
| Item | Typical range (GBP) |
|---|---|
Compact suite (toilet, basin) | £250–£1,200 |
Shower enclosure & tray | £400–£1,800 |
Thermostatic shower valve | £180–£700 |
Tiles (per m²) | £25–£90/m² |
Extractor fan with ducting | £90–£350 |
Underfloor heating mat | £250–£600 |
Cost per m²
| Item | Typical range (GBP) |
|---|---|
Ensuite refit | £1,100–£1,600/m² |
New build-in ensuite | £1,700–£2,600/m² |
Factors affecting cost in the UK
- ·Distance from existing soil stack — longer runs need boxing and macerator pumps (£500–£900).
- ·Whether walls and door already exist or have to be built.
- ·Ventilation route — internal rooms need ducted fans through a ceiling void.
- ·Tile coverage — full-height tiling vs splashback only.
- ·Frameless glass shower enclosures cost 2–3× framed equivalents.
Ways to reduce cost
- ·Site the ensuite back-to-back with an existing bathroom to share soil and water runs.
- ·Use a quadrant or offset quadrant enclosure to maximise a small footprint.
- ·Choose a wall-hung WC only if you already need to box in the soil pipe — otherwise floor-mount saves £150–£300.
- ·Buy thermostatic shower valves from trade brands (Mira, Bristan) — same internals as premium ranges.
- ·Skip underfloor heating in heated ensuites attached to the master bedroom.
Frequently asked questions
- How long does an ensuite refit take?
- 6–10 working days for a like-for-like refit, 2–3 weeks for a brand-new ensuite built into an existing bedroom.
- Do I need planning permission for a new ensuite?
- Not for an internal alteration. Building Regulations apply for drainage, ventilation and electrical work.
- What's the minimum size for an ensuite in the UK?
- Around 1.4 m × 2.1 m (about 3 m²) is the practical minimum for a WC, basin and shower enclosure.
- Will an ensuite add value to my home?
- Yes — adding an ensuite to a master bedroom typically returns 4–6% on UK property value, often above the cost of the work.
- Can I have a bath in an ensuite?
- Yes, if floor area allows around 5 m² or more. Most modern ensuites use a shower only for space efficiency.
- Do I need a macerator?
- Only if the WC sits below or far from the main soil stack. Standard gravity drainage is always preferable and avoids long-term maintenance.