How Much Does a Bathroom Renovation Cost in the UK? (2025 Guide)

Thinking about renovating your bathroom but not sure what to budget? You're not alone. The bathroom is one of the most frequently renovated rooms in UK homes — and one where costs can vary wildly depending on the size, specification, and tradespeople involved.

This guide breaks down realistic bathroom renovation costs in the UK for 2025, covering everything from a basic refresh to a full premium refit.

How Much Does a Bathroom Renovation Cost? Quick Overview

Here's a snapshot of typical bathroom renovation costs across three broad tiers:

These figures cover a standard UK bathroom. Costs rise significantly for en suites with high-end fittings, wet rooms with full waterproofing, or Victorian properties with aged pipework.

Small Bathroom Refresh (£2,000 – £5,000)

A basic refresh suits those who want to modernise without a complete overhaul. At this budget, you can typically expect:

• New bath or shower tray, taps, and shower head
• Replacement toilet and basin
• Fresh tiling on walls and floor
• New mirror, towel rails, and accessories
• Basic decoration and touch-up plastering

This tier usually means keeping the existing layout — moving drain positions or relocating the toilet adds considerable cost.

Mid-Range Full Bathroom Refit (£5,000 – £10,000)

This is the sweet spot for most UK homeowners wanting a proper transformation. A mid-range refit typically includes:

• Complete strip-out of old bathroom
• New suite (bath, shower enclosure or walk-in shower, toilet, basin and vanity unit)
• Full retiling — floor and walls
• New flooring (LVT or heated tile)
• Updated lighting and extractor fan
• Replastering where needed
• All labour: plumber, tiler, and electrician

At this level, you're likely hiring a project manager or a bathroom specialist who coordinates all trades.

Large or Premium Bathroom (£10,000 – £20,000+)

Premium renovations typically involve:

• High-specification freestanding bath, wall-hung toilet, and bespoke storage
• Large-format tiles or natural stone
• Underfloor heating throughout
• Bespoke shower enclosure with thermostatic controls
• Feature lighting and heated mirror
• Full waterproofing to wet room standard
• Structural changes or reconfiguration of the space

Some high-end London bathrooms exceed £30,000 — materials and labour costs in the capital run 20–30% higher than the national average.

Labour vs Materials: Where Does the Money Go?

Understanding the split helps you see where savings are possible.

Typical labour costs for a mid-range bathroom:

• Plumber: £400–£800 per day; expect 2–4 days of work
• Tiler: £200–£400 per day; tiling a full bathroom takes 2–3 days
• Electrician: £300–£500 for extraction fan, lighting circuit, and shaver socket
• General labourer / project manager: varies

Labour typically accounts for 40–60% of the total project cost. Materials — tiles, suite, brassware, flooring — make up the rest.

Hidden Costs to Watch Out For

Many bathroom renovation budgets go over because of surprises uncovered once the old suite is removed. Common hidden costs include:

• Replacing old or corroded pipework — especially in pre-1980s properties. Budget an extra £200–£600 if you suspect aged pipework.
• Waterproofing — a wet room or walk-in shower requires tanking (applying a waterproof membrane). Add £300–£800 depending on area.
• Ventilation upgrades — building regulations require adequate extraction. If your existing fan is inadequate, a new ducted extractor can cost £150–£400 installed.
• Underfloor heating — electric mat systems cost £300–£700 fitted; wet systems are significantly more.
• Skip hire and waste removal — a small skip costs £150–£300. Often forgotten in initial quotes.
• Replastering — if tiles have been removed from a damp wall, replastering is often needed. Budget £300–£600.

Always add a 10–15% contingency to your bathroom renovation budget.

Tips to Keep Bathroom Renovation Costs Down

There are several smart ways to stretch your budget without compromising the result:

• Supply your own materials. Buy tiles, the suite, and brassware yourself rather than letting your tradesperson supply them. Tradespeople mark up materials — sometimes by 20–40%. Use trade accounts at places like Tile Giant, Victorian Plumbing, or Bathstore to get better pricing.
• Keep the existing layout. Moving the toilet, shower, or bath to a new position requires re-routing waste pipes — a significant cost. Keeping everything roughly where it is saves time and money.
• Avoid moving drain positions. This is the single biggest cost driver in bathroom refurbishments. Even shifting a drain by half a metre can add £500–£1,500 to your plumber's bill.
• Phase the project. If budget is tight, do the plumbing and structural work now and upgrade the tiles or fittings later.
• Get three quotes. Bathroom costs vary enormously between tradespeople. Getting multiple quotes is the single most effective thing you can do to control cost.

DIY vs Hiring Professionals

Some elements of a bathroom renovation are genuinely DIY-friendly; others really aren't.

You can DIY:

• Painting and decorating
• Fitting accessories (towel rails, mirrors, toilet roll holders)
• Laying floor tiles on a flat, prepared surface
• Some wall tiling (with patience and the right tools)

You should hire a professional for:

• All plumbing work — any work on gas or water connections should be done by a qualified plumber
• Electrical work — Part P of the Building Regulations requires certain electrical work in bathrooms to be certified by a registered electrician
• Waterproofing / tanking — mistakes here lead to very expensive damp problems down the line

For a detailed step-by-step guide covering the correct renovation workflow, Building Regulations (Parts P, H, L, and F), wetroom tanking standards, and a full materials cost breakdown, see our planning a bathroom renovation UK guide.