Bathroom Installation Costs UK — Full Bathroom Refit Pricing Guide (2026)

UK Bathroom Market Overview

The UK bathroom refurbishment market is driven by a combination of ageing housing stock, rising homeownership expectations and the consistent trend of homeowners investing in their properties rather than moving. An estimated 2–4 million bathrooms are refitted annually across England, Scotland, Wales and Northern Ireland, with the greatest concentration of activity in owner-occupied housing built before 1990.

The average household replaces its bathroom every 10–15 years, creating a predictable replacement cycle that skilled bathroom fitters and plumbing businesses can plan around. The market divides broadly into three tiers — budget, mid-range and luxury — each with distinct customer expectations, specification levels and margin profiles. Understanding which tier you are pricing for before you visit site will determine everything from the time you allocate to the survey to the way you present your quote.

Budget Bathroom Refit Costs (Supply and Fit, Standard Suite)

A budget bathroom refit covers a standard suite (close-coupled toilet, pedestal or semi-pedestal basin, P-shaped or straight bath with shower over), mid-market ceramic wall and floor tiles, basic chrome accessories and chrome-effect fittings. Everything is replaced like-for-like or with minor layout changes. The plumbing, waste and electrical positions stay broadly where they are.

These are realistic 2026 supply-and-fit prices, including labour, materials at trade pricing with standard markup, waste removal and VAT where applicable:

The lower end of each range assumes a bathroom in reasonable condition, no structural surprises, straightforward waste and supply runs, and a fitter working efficiently with pre-sourced materials. The upper end reflects more awkward layouts, longer waste runs, better-quality ceramic tiles (rather than the cheapest budget range) and a more thorough strip-out where the substrate needs levelling before tiling.

Mid-Range Bathroom Refit Costs

Mid-range bathroom work is where experienced bathroom fitters earn their best margin. Customers at this level want quality that is visible — better tiles, a more interesting layout, a freestanding bath or walk-in shower enclosure — but they are not commissioning bespoke joinery or marble. The specification is curated rather than custom.

Typical mid-range specification includes: large-format porcelain wall and floor tiles (600×300 or 600×600), a freestanding bath or double-ended bath, a fixed-head walk-in shower with thermostatic valve, a semi-recessed or countertop basin on a vanity unit, and brushed brass or matte black fittings throughout.

At this level, tiling alone — wall and floor in large-format porcelain — can represent £2,000–£4,000 of the project cost including materials and a specialist tiler's labour. The thermostatic shower valve and enclosure add another £800–£2,500 depending on brand and configuration. Budget adequately for the suite and allow realistic material allowances rather than the absolute minimum.

High-End and Luxury Bathroom Costs

Luxury bathroom work operates on a fundamentally different specification. Marble or natural stone tiles (requiring specialist installation on a properly prepared substrate), bespoke joinery for vanity units and storage, underfloor heating as standard, smart controls for shower temperature and lighting, and high-end sanitary ware from brands such as Villeroy & Boch, Duravit, Crosswater or Lusso Stone.

Projects at this level routinely involve an interior designer specifying finishes and a main contractor co-ordinating trades. If you are quoting luxury work directly to a homeowner, you need to present with the same professionalism as a main contractor — detailed specification documents, phased timelines, material samples and a payment schedule.

Materials can represent 50–60% of the project cost at the luxury end. Natural stone tiles at £80–£200+ per m², bespoke cabinetry, designer sanitaryware and smart shower systems all accumulate quickly. If you are sourcing materials on behalf of the client, your procurement markup on high-value items is a meaningful revenue stream — do not undersell it.

What Is Included in a Bathroom Refit

A properly scoped bathroom refit quote should include all of the following. If any item is excluded, state it explicitly in writing to avoid disputes.

What Is Not Included — Typical Exclusions

Be explicit about exclusions in every bathroom quote. Customers routinely assume “bathroom refit” covers work it does not. The most common exclusions that generate disputes if left unstated:

• Structural work — removing walls, installing lintels, altering joists to lower the floor for a walk-in shower
• Ventilation beyond the bathroom — ducting through roof or external walls where significant building work is needed
• Decoration outside the bathroom — painting the landing ceiling after a pipe was rerouted through it
• Making good plaster or render around the bathroom that was disturbed by first-fix plumbing outside the bathroom footprint
• Boiler or hot water system upgrades to support new shower pressure requirements
• Sub-floor replacement or screed (note: price as a provisional sum or explicit variation trigger)

Trade Breakdown — Who Does What and How Long It Takes

A full bathroom refit typically requires four or five trades, sometimes a single multi-skilled bathroom fitter who holds Gas Safe and Part P qualifications and subcontracts only the specialist tiling. Understanding how long each trade takes helps you programme the job correctly and avoid costly idle days while waiting for one trade to finish before another can start.

The tiler's 2–5 day range is the most variable element. Subway tile in a standard running bond on flat walls: 2 days. Large-format 600×1200 porcelain on a feature wall plus floor with underfloor heating mat embedded beneath: 4–5 days minimum. Always clarify tile format, layout pattern and floor build-up before committing to a tiling price or timeline.

The strip-out — typically 0.5–1 day before first fix begins — is priced into the overall job but rarely listed as a separate line. It should be, because strip-out is when you discover the hidden costs: rotten sub-floors, failed waterproofing behind the tiles, non-compliant waste runs that will need re-routing.

Wet Room Costs and Waterproofing

A wet room — a fully tanked, level-access shower space without a tray or enclosure — is one of the most popular premium bathroom additions of the last decade. It is also one of the most consequential to get wrong. A failed wet room waterproofing system can cause structural damage that costs ten times the original installation to repair.

There are three dominant waterproofing systems used in the UK trade:

• Wedi board — rigid foam XPS substrate boards with fibreglass surface, fully waterproof at the board level, joints taped and siliconed. Fast to install, dimensionally stable, suitable for direct tile adhesion.
• Schlüter Kerdi / Ditra — bonded waterproofing membrane applied over existing substrate, combined with Schlüter drain systems (Kerdi-Drain or Riolito). Industry-leading when installed correctly to system specification.
• Aqua-X / liquid tanking — tanking slurry or flexible membrane brushed or rolled onto substrate. Lower material cost, longer cure time, requires correct surface preparation and multiple coats.

A linear drain (Schlüter Riolito, Geberit CleanLine or similar) provides the drainage for a wet room floor sloped to a single edge or point. Linear drains require precise floor falls (1:80 minimum gradient) and careful tile layout planning to avoid tile cuts that break the visual rhythm of the floor.

Underfloor Heating in Bathrooms

Underfloor heating is now a near-standard expectation in mid-range and luxury bathroom refits. There are two types in common use: electric mat UFH and wet (hydronic) UFH. For the vast majority of bathroom retrofits, electric mat is the correct choice — it is low-build-up (typically 10–15 mm when embedded in a flexible adhesive bed), quick to install and does not require connection to the existing heating circuit.

Electric mat UFH requires connection by a Part P registered electrician and a programmable thermostat. The thermostat probe must be embedded in the tile adhesive bed between the mat wires — coordinate with the tiler to ensure correct positioning before tile laying begins. Wet UFH in a bathroom retrofit is only worth specifying where a new concrete or liquid screed is being laid regardless, such as after significant sub-floor structural repair.

Ventilation — Part F Building Regulations

Bathroom ventilation is a Building Regulations requirement under Part F, and one of the most frequently non-compliant elements in existing bathrooms. When you carry out a full bathroom refit, you are responsible for leaving the room in compliance — this is not optional, and it is not a surprise extra. Price it in from the start.

The minimum requirements for a bathroom mechanical extract fan under Part F (England):

• Intermittent extract rate: 15 litres per second (l/s) minimum
• Fan must be wired on SELV (Separated Extra Low Voltage) circuit — 12V transformer — in Zone 1 and Zone 2
• Continuous running option (at reduced rate) is acceptable as an alternative to intermittent
• Humidistat control strongly recommended for bathrooms without windows

Common Hidden Costs in Bathroom Refits

The most common source of variation claims and margin erosion on bathroom projects is work discovered on strip-out that was not visible during the survey. Experience teaches you where to look — and how to protect yourself contractually when you find something.

The correct contractual protection is a variation clause in your quote: any concealed defects or non-compliant existing services discovered on strip-out will be quoted separately as a written variation before work proceeds. Customers who agree to this upfront accept the reality of renovation work. Customers who refuse to accept a variation clause are telling you something important about how they will behave mid-project.

How to Quote a Bathroom Job

A bathroom quote that wins work and protects your margin has six elements. Miss any of them and you are either underpricing (leaving money on the table) or over-promising (setting yourself up for a dispute).

Managing Clients Who Want to Supply Their Own Suite

Client-supply jobs — where the customer buys their own sanitaryware, tiles or shower enclosure — are increasingly common as homeowners try to save money or insist on sourcing a specific product themselves. They can work well. They can also become loss-making nightmares. The difference is how you manage the terms.

When a client is supplying their own suite, your quote should explicitly cover:

• You accept no responsibility for the suitability of client-supplied goods for the intended installation
• Any additional time caused by incorrect, missing or damaged client-supplied items is chargeable at your day rate
• The client must have all materials on site before the start date — you will not delay the project waiting for deliveries
• Any returns, exchanges or replacements are the client's responsibility to arrange and do not extend the contract period without a formal variation
• Your labour rate does not reduce because the client is supplying materials — you are charging for your time and skill, not as a percentage of the goods

Risk allocation is the core issue. When a customer buys their own shower enclosure and it arrives with a missing panel, that is not your problem — unless you have not put the above terms in writing and they argue otherwise. Client-supply terms in your standard quote template take ten minutes to write once and protect you on every future job.

How Trade2Base Helps Bathroom Fitters Win Better Jobs

For a bathroom fitting business, not all enquiries are equal. A call from someone who saw your van outside a neighbour's house is worth more than a lead from a price-comparison directory full of budget shoppers. A referral from a previous customer converts at a higher rate, spends more and is less likely to haggle over your margin. But if you do not track where your enquiries come from and what they spend, you cannot act on that knowledge.

Trade2Base records the source of every enquiry — whether that's a Google Ad, a Checkatrade listing, a direct referral, your own website, a Facebook post or a call out of nowhere — and links it to the job value when the work is won. Over time, you build a clear picture of which marketing channels bring in the £10,000 bathroom refits and which bring in the £3,000 jobs you are underpricing to compete for.

That data lets you make deliberate decisions: increase budget on the channels that bring in high-value bathroom jobs, cut spend on directories that attract price-sensitive customers who push back on your quotes. Bathroom fitting is a relationship business at the premium end — Trade2Base helps you understand which marketing builds those relationships and which wastes your time.