Pricing a bathroom installation wrong costs you in two ways. Quote too low and you’re working for less than minimum wage by the end of the job. Quote too high without being able to justify it and you lose the customer to the next fitter down the list. Getting it right means having a system — not guessing based on gut feel.
Most of the pricing information out there is written for homeowners: how much should I expect to pay? This guide is written for bathroom fitters: how do I calculate what to charge?
Key Takeaways
- Split every quote into three buckets: materials, labour, and overheads — price each separately before combining into a customer total
- Labour-only rates for bathroom installation typically run £300–£500 per day for a sole trader; always factor in your actual hours, not an optimistic estimate
- Materials usually represent 40–60% of the total job cost — get supplier quotes before sending any fixed-price estimate
- Add a contingency of 10–15% on materials for hidden issues (floor condition, pipework surprises, tile breakage)
- A well-structured written quote protects you legally and reduces renegotiation disputes when scope creep happens
Why Bathroom Jobs Are Particularly Tricky to Price
Bathrooms combine multiple trades in a confined space: plumbing, tiling, electrics (Part P for lighting and extractor circuits), carpentry (boxing in, vanity units), and sometimes plastering. You’re often working as a sole trader who subcontracts some of this out, or doing it all yourself if you’re multi-skilled.
The traps are:
- Hidden floor damage — lift the old floor covering and you might find rotten joists or a subfloor that needs replacing
- Pipework that doesn’t meet current standards — moving a toilet or basin sometimes reveals 50-year-old pipework that can’t be connected to modern fittings without a partial re-run
- Tile adhesion failures — walls that look solid can have hollow spots behind old tiles that need re-skimming before new tiles will hold
- Customer-supplied sanitaryware — if the customer buys the suite themselves, you lose the materials margin and take on risk if the products are faulty or don’t fit properly
None of this means you can’t quote fixed-price. It means you need to build the right allowances in.
Step 1: Separate Your Three Cost Buckets
Before anything else, break the job into three buckets:
| Cost Bucket | What It Covers |
|---|---|
| Materials | Sanitaryware (if supply-and-fit), tiles, adhesive, grout, sealant, waste pipes, isolation valves, fixings |
| Labour | Your time, plus any subcontractors for electrics, plastering, or specialist work |
| Overheads | Van, insurance, tool wear, waste disposal, skip hire if needed, admin time |
Most fitters think about materials and labour. Overheads are where the profit quietly disappears. If your public liability insurance costs £800 a year and you complete 40 jobs a year, that’s £20 per job before you’ve bought a single tile.
Step 2: Calculate Material Costs
Get actual prices from your supplier before you quote. Don’t estimate from memory — material costs shift, and your margin depends on accuracy.
Tiling
Measure the wall area you’re tiling accurately: height × width for each tiled surface. Add 10–15% for cuts and wastage (more for small or complex tile formats, diagonal laying, or detailed cuts around fixtures).
| Tile Size | Wastage to Add |
|---|---|
| Large format (600mm+) | 10% |
| Standard (300×300mm) | 12% |
| Small mosaic / metro | 15% |
| Diagonal / herringbone pattern | 20% |
A typical UK family bathroom (around 4–5m²) might need 30–40m² of wall tiles once you account for above the bath, behind the basin, and the shower area. Floor tile quantities are usually smaller — 4–6m² for a standard bathroom.
Sanitaryware and Plumbing Components
If you’re supplying the suite, get trade prices from your plumbing merchant. A basic white close-coupled suite (WC, basin, bath) runs £350–£800 at trade depending on quality. Add:
- Taps, shower fittings, thermostatic bar valves: £80–£300+ depending on spec
- Waste and overflow fittings: £40–£80
- Isolation valves and connectors: £30–£60
- Flexible hoses, PTFE, silicone sealant, grout, adhesive: £50–£100
Standard Material Cost Ranges (Supply-and-Fit Jobs)
According to industry pricing data from MyBuilder and Victorian Plumbing (2025–2026):
| Component | Typical Trade Cost |
|---|---|
| Basic bathroom suite | £350–£800 |
| Mid-range suite | £800–£1,500 |
| Tiles (per m²) | £15–£60 |
| Adhesive and grout (full bathroom) | £80–£120 |
| Plumbing materials and fittings | £100–£250 |
| Electrics (extractor, shaver socket) | £80–£200 |
Step 3: Price Your Labour
Your labour rate needs to cover your actual costs, not just what you want to take home.
A self-employed bathroom fitter in the UK should know their minimum daily rate based on:
- Target annual earnings ÷ billable days per year
- Plus the cost of holidays, sick days, and slow periods (typically 20–25% buffer)
- Plus your overhead allocation per day (van, insurance, tools, accountant, etc.)
Typical labour rates for bathroom installation in the UK (2026):
| Fitter Type | Day Rate |
|---|---|
| Sole trader, standard | £250–£400/day |
| Experienced multi-trade fitter | £350–£500/day |
| Two-person team | £500–£700/day |
| London / SE premium | Add 20–30% |
A standard full bathroom strip-out and refit typically takes 3–5 days for a sole trader working alone, or 2–3 days with a second pair of hands.
So for a mid-range bathroom job with one fitter:
- Labour: 4 days × £350/day = £1,400
- Materials: £1,200 (mid-range suite, tiles, fittings)
- Overheads: £200 (skip, waste, travel, sundries)
- Total cost to you: £2,800
If you’re applying a 25% gross margin, you’d quote around £3,500–£3,700 for the job. This aligns with what the Federation of Master Builders (FMB) reports as the average labour cost for a small bathroom update — around £2,000–£4,000 for labour alone, with materials on top.
Step 4: Add Contingency and Markup
Contingency covers unknowns. On materials, add 10–15%. On labour, if you’re quoting fixed-price on a bathroom with existing tiling being removed (hidden condition unknown), add an allowance for a half-day investigation.
Markup is how you build in profit above breakeven. There’s no single right number, but most successful sole traders in the fitting trades work to a 20–30% gross margin on the combined materials-and-labour cost.
| If Your Cost Is | At 25% Gross Margin | At 30% Gross Margin |
|---|---|---|
| £2,500 | £3,333 | £3,571 |
| £3,500 | £4,667 | £5,000 |
| £5,000 | £6,667 | £7,143 |
Note the distinction between markup (applied to cost price) and margin (expressed as a percentage of the selling price). A 25% margin means your cost is 75% of your selling price. Don’t confuse them — it’s an easy way to underprice.
Step 5: Structure Your Written Quote
A verbal quote is not a quote — it’s a conversation. Always send something in writing, even if it’s a short email or a simple document. Your written quote should include:
- Scope of work — what’s included (and what isn’t). “Strip out and dispose of existing bathroom” means the skip is included. If it isn’t, say so.
- What the customer is supplying — if they’re buying their own suite, state that clearly. Their failure to get the right sizes becomes their problem, not yours.
- Materials specification — brand, range, and finish if you’re supplying tiles or sanitaryware, so there’s no dispute later about expectations
- Price breakdown — at minimum, separate labour and materials. This makes VAT easier to handle and lets you deal with scope changes cleanly.
- Exclusions — specifically call out what you won’t be doing: replastering walls, floor structure repairs, Part P electrical work (if you’re not registered), decorating
- Variation clause — “Any additional work discovered during the job (e.g., floor structure damage, non-compliant pipework) will be quoted separately before proceeding”
- Payment terms — stage payments for larger jobs (e.g., 30% on start, 40% midway, 30% on completion) reduce your risk if the job runs into problems
Common Pricing Mistakes
Forgetting strip-out time. Removing an old bathroom suite takes time — disconnecting, sealing, lifting, and disposing of the waste. On a full refit, allow half a day to a full day for strip-out alone.
Pricing materials at retail. If you’re quoting based on what a tile costs at B&Q rather than your trade account price, you’re leaving money on the table — or overcharging and losing jobs.
Not accounting for tile cuts. A bathroom with a lot of obstacles (pipes, sockets, WC cistern, window recess) will generate significantly more cut tiles than a clean square wall. Under-estimating cuts is one of the most common reasons fitters end up short on materials.
Agreeing to customer-supplied suites without a labour-only caveat. If the customer’s bath doesn’t fit through the doorway, or the toilet waste connection is in the wrong position for the pan they’ve ordered, that’s extra hours — and without a variation clause, you’re eating the cost.
Undercharging for multi-visit jobs. First-fix plumbing, then a wait for the tiler, then second-fix — each return visit costs you time and travel. Build that in.
Frequently Asked Questions
How much should a bathroom fitter charge per day in the UK? A self-employed bathroom fitter in the UK typically charges £300–£500 per day depending on experience and location. Multi-skilled fitters who handle plumbing and tiling together can justify the higher end of that range. London and South East rates are usually 20–30% above the national average.
Should I quote fixed price or day rate for a bathroom installation? Fixed-price suits jobs where the scope is clear and the existing condition is visible: a like-for-like suite replacement where you can see the floor and walls are in good condition. Day rate is fairer on both sides for full renovations, especially where you’ll be stripping out walls or floors with unknown condition. A hybrid approach — fixed price with a clearly stated variation clause for structural discoveries — is common for full refits.
How do I handle customer-supplied sanitaryware? When the customer supplies their own suite, you should quote labour only and state clearly what the supply excludes: no warranty on the suite, any remedial work caused by defective products charged separately, and the customer is responsible for ensuring the suite meets current UK water regulations. Include a site visit fee or minimum charge for returned visits if products arrive damaged or wrong.
What’s the typical profit margin for bathroom fitters? Most self-employed bathroom fitters should aim for a gross margin of 20–30% on the combined labour and materials cost. The Federation of Master Builders (FMB) recommends tradespeople review their overhead costs annually to ensure their day rates and markup remain profitable as costs rise.
How long does a bathroom installation take? A full bathroom strip-out and refit for a typical UK family bathroom typically takes 3–5 working days for one fitter. More complex jobs with bespoke tiling, wet rooms, or structural changes can take 7–10 days. A like-for-like suite swap without tiling can be completed in 1–2 days.
Getting the Pricing Right Is Just the Start
Accurate pricing keeps you profitable. But getting found by customers in the first place — people searching “bathroom fitter near me” or “bathroom installation [your town]” — is a separate challenge.
Most bathroom fitters get their early work from word of mouth or platforms like Checkatrade or Rated People. Those work, but they cost money per lead and put you in a price race with every other fitter who bids on the same job.
A professional website changes that equation. It lets customers find you directly through Google, see your work, and contact you without a middleman taking a cut. Digital Tradies builds websites for bathroom fitters and other tradespeople from £49/month — no upfront cost, live in 3 days, and you own the leads it generates.
For more on building a trade business that doesn’t depend on one referral source, see our guides on getting more work as a tradesperson and what a trade website should actually contain.
