Anyone who’s tackled a bathroom renovation knows it rarely runs exactly to plan. Once old tiles are lifted or pipes are exposed, hidden problems often appear — and those extra jobs can quickly stretch the budget. That’s why it helps to know where most of the money goes before you start.

Labour: The Biggest Slice of the Budget

Labour is usually the most expensive part of a bathroom project. Skilled trades like plumbers, electricians, tilers and carpenters are essential to get the job done safely and to a high standard.

• For a typical UK bathroom, expect labour costs between £3,000 and £5,000. If your project is more complex — for example, relocating pipes or dealing with structural changes — the price can climb much higher. Where you live matters too: trades in London and larger cities often charge a premium compared with smaller towns.

Fixtures and Fittings: What You See Every Day

Next up are the visible elements: the suite and fittings. These are what give your bathroom its finished look and feel.

• Basic bathroom suites: usually £5,000–£7,000
• Designer or luxury suites: £14,000+

On top of the suite itself, you’ll need to allow for installation:

• Showers: £250–£750 depending on the setup
• Baths: roughly £325

Tiles and Finishes: The Style Factor

Tiles can completely transform a bathroom, but prices vary massively. Ceramic tiles can be picked up for just a few pounds, while premium porcelain, stone, or designer tiles can cost £50–£150 each.

Tiling is also labour-intensive. A professional tiler will typically charge around £300 per day, and the cost can rise if you choose intricate patterns, oversized tiles, or extras like underfloor heating. Don’t forget the prep work, grout, adhesives, and disposal of old tiles — all of which add to the final bill.

It’s not always the size of the bathroom that drives costs — complexity plays a huge part. Awkward layouts, tricky access, or adding lots of fixtures can often push up labour and material costs more than a simple, larger space would.

Unexpected Extras: The Hidden Costs

Older bathrooms often hide surprises that can’t be ignored. Common issues include:

• Subfloor damage from leaks
• Outdated plumbing or wiring
• Structural repairs needed before new fittings go in
• Because of this, it’s wise to set aside a contingency fund to cover unexpected problems.

Why a Professional is Worth It

DIY can seem tempting, but bathrooms usually involve complicated plumbing and electrics. Getting it wrong can be dangerous and costly to put right. Professional fitters bring:

• Accurate, realistic quotes
• Experience spotting problems before they escalate
• Access to trade discounts on materials

In short, paying for experience can save you time, hassle, and even money in the long run.