Replacing a Bath With a Walk-In Shower — Complete Guide

Replacing a bath with a walk-in shower is a brilliant upgrade for most households — but it's worth a moment's thought before you commit.

It's a great choice if you rarely use the bath, want a more spacious, modern, hotel-style bathroom, find climbing in and out of a bath difficult, or you're future-proofing your home for later life. Walk-in showers are quicker to use, easier to clean, and use less water than a full bath.

Think twice if this is your home's only bath and you have young children or plan to sell to families — many buyers still want at least one bath in the house (more on resale below). If you have a second bathroom with a bath, removing this one is rarely an issue.

The good news: a walk-in shower usually drops straight into the gap your bath leaves behind.

Most UK baths are 1700 x 700mm, so a 1700 x 700mm shower tray fits the same footprint — no need to move walls or pipework in most cases. If you'd like a little more elbow room and your space allows, a 1700 x 760mm or 1700 x 800mm tray gives a roomier feel.

For the easiest, most accessible entry, choose a low-profile (slimline) tray — around 25–45mm high — or a fully level-access / wet-room finish where the floor is tanked and the tray sits flush. Pair the tray with either a sliding door enclosure (great where floor space is tight) or an open wet-room glass panel for that spa-like, doorless look.

Don't forget a fast-flow waste to clear water quickly, and a thermostatic shower valve to keep the temperature rock-steady.

One of the biggest reasons people swap a bath for a shower is accessibility. A few well-chosen extras turn a standard walk-in shower into a genuinely safe, comfortable space:

• Level-access or low-profile tray — removes the step over a bath edge, the single biggest trip hazard.
• Grab rails — give secure support getting in, out and while standing. Position one by the entry and one near the controls.
• A shower seat — a fold-down wall seat or freestanding stool lets you shower seated, ideal for anyone who tires standing.
• A thermostatic valve — its built-in anti-scald stop at 38°C prevents sudden temperature spikes.
• Non-slip surfaces — choose a tray with an anti-slip finish, or add a non-slip mat.

For a co-ordinated set, "Doc M" accessibility packs bundle matching grab rails and a seat together. The best results usually come from a combination — a level tray, a couple of grab rails, and a seat.

Product cost varies with spec, but as a rough guide you'll want to budget for a tray, an enclosure or panel, a shower valve and kit, a waste, and any accessibility extras. At Bubly, trays start from around £120, sliding enclosures from around £200, and wet-room panels from around £108 — with up to 70% off RRP across the range, a full kit is far more affordable than most expect.

Installation (removing the bath, tanking/waterproofing, tiling and plumbing) is the bigger variable and is best quoted by a local fitter — it typically takes a couple of days.

Home value: a clean, modern walk-in shower is a strong selling point, particularly to downsizers and buyers thinking about accessibility. The one caveat estate agents agree on — if it's your only bathroom, keep at least one bath somewhere in the house for family buyers. A second bathroom or en-suite converted to a walk-in shower adds appeal with no downside.