How to Price Bathroom Renovation Work in the UK (2026 Guide)
Bathroom renovations are one of the most profitable job types for multi-trade businesses — but also one of the hardest to price accurately. This guide covers everything from day rates and material splits to VAT rules, deposit structure, and how to handle the unexpected so you win bathroom jobs at the right margin every time.
Why bathroom renovations are hard to price
A bathroom renovation is genuinely complex. Unlike a boiler swap or a rewire, it involves multiple trades working in sequence — plumber, tiler, electrician, and often a decorator or carpenter — in a small, confined space with little margin for scheduling error. Any trade overrun pushes the next trade back. Materials have long lead times. And the space behind the walls is unknown until you open it up: corroded pipework, rotten subfloors, and damp framing are common discoveries that add cost and time to a job quoted on inspection alone. Accurate pricing starts with a thorough site survey and a quote structure that accounts for contingency, rather than hoping everything goes smoothly.
Typical bathroom renovation costs (2026)
En-suite bathrooms in the UK typically run £4,500–9,000 supply and fit for a competent but not premium specification — a shower enclosure or bath, WC, basin, tiling to walls and floor, and new lighting. A standard family bathroom with bath, separate shower, WC, and basin in a mid-range finish runs £7,000–14,000 supply and fit. A full wet room conversion — tanked floor, linear drain, frameless glass screen, full tiling — starts at £8,000 and can reach £18,000 or more for a premium specification. These are all-in figures including labour, materials, waste disposal, and a sensible profit margin. Labour-only figures are roughly 40–50% of the total. London and the South East typically run 20–35% higher than the national figures above.
Labour vs materials: getting the split right
On a well-priced bathroom renovation, labour typically accounts for 45–55% of the total project cost and materials for the remainder. If your materials bill is running significantly above 60% of the total, you are either sourcing at retail rather than trade price, or failing to charge adequately for your time. Your trade discount on sanitaryware, tiles, and fittings — typically 20–40% below retail through merchants such as Plumb Center, Bathroom Takeaway Trade, or Travis Perkins — represents a legitimate part of your business revenue. You are managing sourcing, delivery logistics, and materials risk. Never pass the full trade discount on to the customer. Mark materials up to at least retail price, or apply a consistent percentage mark-up on your trade cost across all items.
Day rates for each trade in a bathroom renovation
A plumber installing first-fix pipework, waste runs, and second-fix sanitaryware on a standard family bathroom typically requires 3–5 days. At 2026 day rates of £250–400 per day, that means £750–2,000 in plumbing labour alone. A tiler working on a standard 6m² bathroom typically takes 3–5 days depending on tile size, substrate preparation, and the number of cuts — £600–1,600 in tiling labour. An electrician completing the Part P notifiable work — new circuit for shower, lighting, and shaver point — typically requires 1–2 days at £250–380 per day. A decorator finishing plaster, painting walls and woodwork, and fitting accessories takes 1–2 days at £180–280 per day. When you are co-ordinating multiple trades, add a project management margin of 10–15% on top of the individual trade costs to cover your time, responsibility, and any overrun risk.
What to include in the quote
A bathroom renovation quote that wins work at the right price is itemised clearly. Include separate line items for: strip-out and disposal, first-fix plumbing, board and waterproofing (where applicable), tiling labour and materials (by area and tile specification), second-fix plumbing and sanitaryware, electrical works, plastering and decoration, accessories and finishing, and waste disposal. Always specify the exact sanitaryware and tile products by name and model — this prevents scope creep disputes and makes it difficult for the customer to switch to cheaper alternatives after agreeing the price. Include a clear project timeline showing start date, trade sequence, and estimated completion date. Customers commissioning a bathroom renovation are usually living without their main bathroom — certainty about duration is as important as price.
Handling unexpected work: subfloor damage and re-routing pipes
The most common source of bathroom renovation disputes is unexpected structural or plumbing problems discovered once the strip-out begins. Rotten subfloor joists, asbestos vinyl floor tiles in pre-1980s properties, corroded lead or iron pipework, and significant mould within wall structures are all common discoveries. Handle this in your quote in two ways: first, carry out a thorough pre-start inspection and price for what you can see — probe the floor near the bath and WC for soft spots, check under the basin for corrosion, and look for staining that indicates hidden leaks. Second, include a written variation clause in your contract stating clearly that any remedial work required for discovered structural or pipework defects will be agreed in writing before proceeding and charged as a variation to the original contract. This protects both parties and eliminates the “I didn't think it would cost that much” dispute that derails otherwise well-run jobs.
Deposit structure and payment terms
Bathroom renovations typically require a deposit of 30–50% before work begins to fund material purchases. This is widely understood by customers for large-scale renovation work and should always be requested. A common structure is: 40% deposit on acceptance of quote to cover sanitaryware and tile orders; a further 30% at the end of first fix (typically after plumbing and boarding, before tiling begins); and the remaining 30% on satisfactory completion. Never start a bathroom renovation without a signed quote and deposit in hand — materials costs alone on a standard bathroom can exceed £3,000–5,000, and your cash flow is at risk if the customer delays or cancels mid-project.
VAT considerations for bathroom renovations
Standard-rated VAT at 20% applies to bathroom renovation work on most domestic properties. However, there are important exceptions. Reduced rate VAT of 5% applies to renovation of a dwelling that has been empty for 2 or more years. Certain adaptations for disabled persons may qualify for zero-rating under Group 12 of VATA 1994 Schedule 8 — for example, installing a level-access shower to accommodate a disability. If you are VAT-registered, you must charge VAT on labour and materials unless an exemption applies. If you are not VAT-registered (turnover below the £90,000 threshold), you cannot charge VAT, which is a competitive advantage on domestic work. If you are approaching the threshold, review your VAT registration position before quoting large bathroom renovation projects — the VAT cost on a £12,000 job is £2,400, which materially affects your competitive position against non-registered competitors.
Profit margins on bathroom renovations
A well-run bathroom renovation business targets 35–50% gross margin on each project. Gross margin here means the difference between the total price charged to the customer and the direct cost of labour (including subcontractor costs) and materials at your trade price. The margin funds your overheads — vehicle, insurance, tools, software, marketing — and your net profit. Margins below 30% are a warning sign that you are either underpricing labour, passing through too much of your material discount, or failing to charge adequately for co-ordination. Track your actual cost against your quoted cost on every bathroom job and review any job where actual margin came in more than 5 percentage points below the quoted figure — that variance tells you where your pricing needs to tighten.
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