Shower Installation & Replacement Costs (2026)
Shower pricing splits along two axes: what type of shower, and how much of the wall has to change. A like-for-like electric swap is a quick, predictable job; a concealed thermostatic valve in a tiled wall is a small project. Here's the 2026 cost landscape, and the system questions to answer before falling for a shower your plumbing can't feed.
Replacement costs by shower type
Like-for-like electric shower replacement — same kW rating, same position — typically runs £180–£320 including a mid-range unit. Exposed mixer shower replacement (bar valve on the tiles) lands £220–£420 supplied and fitted. Concealed thermostatic valves are where cost climbs: the valve lives inside the wall, so replacement involves tiling implications — commonly £450–£900+ depending on access and finish. Digital and smart showers run £550–£1,100 installed, with the processor unit sited accessibly being the detail that separates good installs from future grief.
The kW trap on electric showers
A more powerful electric shower needs more current: a 10.5kW unit draws meaningfully more than an 8.5kW one, and the cable, isolator switch and protective device must be verified suitable before the swap. Upgrading the shower without upgrading an undersized circuit is a genuine fire risk. If a circuit upgrade is needed, that's electrician territory added to the plumbing cost — worth knowing before you buy the box in the sale.
Match the shower to the system, not the brochure
Mixer showers need pressure to perform. Unvented and combi systems deliver mains pressure and suit standard mixers. Gravity-fed systems (loft tank + cylinder) deliver whatever tank height provides — often under 0.5 bar upstairs — and need either gravity-specific valves, a shower pump (£350–£700 installed), or a system rethink. The most common expensive mistake in this category is a beautiful mains-pressure shower installed on a gravity system, delivering a beautiful dribble.
Where the quotes diverge
Get the scope itemised: unit supplied or customer-supplied, tiling and making-good included or excluded, waste and tray work in or out, and — for electric — whether circuit verification is included. Two quotes £300 apart are frequently the same labour with different inclusions. The cheap quote that excludes making-good isn't cheap once a tiler visits.
| Type | Typical cost | Key dependency |
|---|---|---|
| Electric (like-for-like) | £180–£320 | Circuit must support kW rating |
| Exposed mixer (bar valve) | £220–£420 | System pressure adequate |
| Concealed thermostatic | £450–£900+ | Tiling/access implications |
| Digital/smart | £550–£1,100 | Processor siting + pressure |
| Shower pump (gravity systems) | £350–£700 | Tank-fed supply required |
Reading quotes against these numbers
National price bands earn their keep at comparison time: any quote inside the range with clear inclusions is negotiating in good faith; anything dramatically outside it — in either direction — is a prompt for questions rather than automatic rejection. Regional variation is real (London and the South East price higher throughout), as is access difficulty, which legitimately doubles some jobs. What never varies legitimately: surprise doorstep supplements and prices that grow after work has started.
Frequently asked questions
Can I replace an 8.5kW shower with a 10.5kW one?
Only if the cable, isolator and protective device are verified suitable for the higher current — checked before purchase, not after. If the circuit needs upgrading, that's an electrician's job added to the cost.
Why is my new shower weaker than the old one?
Usually a pressure mismatch: a mains-pressure mixer fitted to a gravity-fed system, or a flow-restricted eco unit replacing an unrestricted one. The system survey that prevents this takes ten minutes.
How long does a shower replacement take?
Like-for-like electric or exposed mixer: half a day. Concealed valves and digital systems: a day or more depending on wall access and making-good.
Do I need a pump for a better shower?
Only on tank-fed (gravity) systems — and pumps must be fed from a tank, never the mains, which water regulations prohibit. Mains-pressure systems that shower poorly have a blockage or restriction to find instead.
If you'd rather hand this over
Plenty of readers reach this point, weigh the afternoon involved, and sensibly hand the job to someone who does it weekly. No judgement — that trade-off is what our network exists for. Every plumber we work with is vetted, insured and locally based, quotes are agreed up front, and genuine emergencies are answered around the clock. Describe the symptoms you've identified from this guide and you'll get an accurate price rather than a guess — informed customers get better quotes.