Renovating a bathroom always starts with the same question: what will it actually cost? The honest answer is that the cost of renovation of bathroom projects in the UK sits between £3,000 and £15,000+, depending on size, layout, and finish. Most homeowners land somewhere in the £5,000–£8,500 range for a standard family bathroom.
That’s a wide bracket, and if you’ve been quoted anything from £2,500 to £20,000 by different fitters, you’re not being scammed you’re just seeing how differently one bathroom can be priced. This guide breaks the numbers down properly, so you know what you’re paying for before anyone picks up a tile cutter.
Average Cost of Renovation of Bathroom in the UK (2026)
The average bathroom remodel cost in the UK sits between £5,500 and £8,500 for a standard family bathroom. This covers a room of around 6 to 8 square metres.
A small suite swap costs less. Expect £2,500 to £4,500 if you keep the layout the same. A luxury wet room or spa-style bathroom can reach £10,000 to £15,000 or more.
If someone asks how much does a bathroom renovation cost, the honest answer is: it depends on your postcode too. London jobs run 15 to 30 percent higher than the UK average because of local labour rates and demand.
So when people search for the bathroom refurbishment cost in their area, prices from Sheffield and prices from Chelsea can look like two different projects. Get three quotes from local tradespeople before you commit to a budget.
What Does a Bathroom Renovation Cost Breakdown Actually Look Like?
Labour usually makes up 45–60% of your total budget more than in almost any other room in the house. That surprises a lot of homeowners, who assume the sanitaryware is the expensive part.
A rough breakdown for a standard bathroom:
- Bathroom suite: (toilet, basin, bath or shower) £600–£2,500
- Tiling: £25–£60 per square metre for labour, plus £15–£150 per square metre for the tiles themselves
- Plumbing and electrical work: priced by the day, with plumbers typically charging £250–£500 per day
- Old bathroom removal: £600–£1,000, plus a skip if you need one
- Tanking (waterproofing) for showers or wet rooms: £250–£1,000 depending on scope
Full installation, tiling included, often works out to roughly £800–£1,200 per square metre once everything is fitted. That figure includes labour and materials but assumes there’s nothing structurally wrong behind the walls.
How Much Does a Wet Room or Premium Bathroom Cost?
A wet room typically costs £8,000–£20,000+, roughly 20–30% more than a standard bathroom. That premium comes almost entirely from the waterproofing and drainage work, not the fittings.
Wet rooms need:
- Floor-to-ceiling tanking (waterproof membrane)
- A specialist drainage system with gradient flooring
- Non-slip tiles
- Glass screen installation
This is also where large-format tiles (600x1200mm or bigger) or patterns like herringbone add cost expect labour to rise by 25–50% per square metre compared with straightforward straight-laid tiling, simply because of the extra cutting and precision involved.
How Much for a Small Bathroom or Basic Refresh?
A small bathroom renovation cost usually sits at £2,000–£5,500, assuming you keep the existing layout and stick to mid-range fittings. This is the realistic figure for a downstairs cloakroom or a compact family bathroom that just needs modernising, not redesigning.
To keep costs at this end of the scale:
- Keep the toilet, bath, and basin where they already are
- Choose ceramic or standard porcelain tiles instead of natural stone
- Limit tiling to half-height rather than floor-to-ceiling
- Reuse existing pipework wherever it’s still sound
Moving plumbing, even by a metre, tends to add £800–£2,500 to a job often more than the new suite itself costs.
How Long Does a Bathroom Renovation Take?
A standard bathroom takes one to two weeks from strip out to finish, assuming no layout changes. Add a few extra days if you are moving a toilet or shower, since new pipe runs need time to set before tiling starts.
Larger or luxury projects with structural work can run three to four weeks. Build in extra time if your home is older, since unexpected repairs are more likely.
Hidden Costs to Watch For
Many people budget for the visible parts and forget what is behind the walls. This is where projects go over.
Waterproof tanking membranes in wet areas cost £250 to £400. An extractor fan upgrade to a humidistat model adds £150 to £300. If your plumber finds rotten flooring or old lead pipework, repairs can add several hundred pounds you did not plan for.
Always ask your contractor for a contingency figure. A sensible buffer is 10 to 15 percent of your total budget, kept aside for anything unexpected.
How to Save Money on Your Bathroom Renovation
You can save money without making the bathroom feel cheap. Try these approaches:
- Keep your existing layout instead of moving pipework
- Choose mid-range fittings instead of premium brands for items like taps and shower heads
- Reuse a vanity unit if it is still in good condition
- Get three written quotes before choosing a contractor
- Buy tiles and sanitaryware in sale periods rather than rushing the order
- Limit full-height tiling to wet zones only, using paint elsewhere
A clear plan before work starts is the single best way to control your average cost. Once a contractor is on site, changes get far more expensive.
DIY Versus Hiring a Professional
DIY can lower upfront spend, but bathrooms leave little room for error. Poor waterproofing or incorrect plumbing often costs more to fix later than it would have cost to do properly the first time.
Hiring qualified trades protects you in three ways:
- Correct certification for plumbing and electrical work under UK building regs
- Warranty cover if something fails after the job is done
- Faster turnaround, since experienced fitters know how to sequence the work
For most homeowners, a mix of DIY prep (clearing the room, choosing fittings in advance) paired with professional fitting gives the best balance of cost and quality.
Does a Bathroom Renovation Add Value to Your Home
A tired or outdated bathroom can put buyers off, especially in a competitive market. A well-planned full renovation often returns a good share of its cost at resale, particularly if the existing bathroom was the only one in the house or clearly needed work.
Buyers are also paying more attention to ventilation and damp control. A working extractor fan and good waterproofing matter just as much as how the room looks in photos.
Why Homeowners Choose ABL Design & Build
At ABL Design & Build, we plan every renovation around a clear, honest quote from the start. No hidden add-ons and no rushed labour.
Our Bespoke kitchen London service covers everything from a simple suite swap to a full luxury wet room. We handle the plumbing, tiling, electrics, and finishing under one team, so you are not chasing three different tradespeople.
If you want a realistic number for your own project, our team can walk your space and give you a written quote within days.
Final Thoughts
The Cost of Renovation of Bathroom depends mostly on size, layout changes, and the fittings you choose. A clear budget and a detailed quote protect you from surprises once the work begins. Plan ahead, compare quotes properly, and prioritise good waterproofing over flashy extras.
Ready to get a clear, honest quote for your project? Contact us today and let our Bespoke kitchen and bathrooms London team turn your plans into a bathroom built to last.