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Complete Guide to Buying a Bathroom

27/05/2026
Read Time 19 mins
Written by Ryan Evans
Complete Guide to Buying a Bathroom

Buying a bathroom is one of the most significant home improvement decisions you will make. There are more products, more decisions, and more opportunities to get things wrong than almost any other room in the house. This guide takes you through the entire process, from setting a budget and planning your space to choosing every product and understanding what installation actually involves.

Use it as your starting point and refer to the specialist buying guides linked throughout for deeper advice on individual products.

How much does it cost to buy a bathroom?

Before you look at a single product, set a realistic budget. This is the one step that prevents overspending more than any other.

Bathroom costs fall into two categories: the products themselves and the cost of installation. Most people underestimate how much installation adds to the total. A bathroom suite costing £800 could easily sit within a total project cost of £4,000–£7,000 once labour, tiling, flooring, and ancillary materials are included.

Products (suite, fixtures, and fittings):

Budget level

Product cost

Budget

£300 – £800

Mid-range

£800 – £2,500

Premium

£2,500 – £6,000+

Total project cost (products plus full installation):

Budget level

Total installed cost

Cosmetic refresh

£2,000 – £4,000

Full renovation, standard bathroom

£4,000 – £8,000

High-end or large bathroom

£8,000 – £15,000+

Read more: How Much Does a New Bathroom Cost?

Suite or individual products: which should you buy?

This is the first product decision to make, and it affects everything else.

  • Buying a bathroom suite means purchasing a toilet, basin, and bath (or shower enclosure) as a coordinated package. Suites are designed to work visually and structurally together, and buying as a package is almost always more cost-effective than buying individually. The components share a common design language, simplifying decisions on style, proportion, and finish.

  • Buying individual products gives more flexibility to mix styles and sizes, but requires more time to ensure compatibility and visual coherence. It suits renovations where one or two elements are being replaced rather than a full room change, or where a very specific product specification is needed that no suite package provides.

For a full bathroom renovation, a suite is the practical starting point. For a partial refresh or a room with unusual dimensions, individual selection may give better results.

Browse our full range of bathroom suites or take a look at our bathroom suite buying guide.

Planning your bathroom

Measure the room first

Before choosing any products, measure the room accurately. This sounds straightforward. It is the step most commonly skipped or done poorly, and it results in products that do not fit, enclosures that cannot open properly, and layouts that don't work in practice.

Measure: length, width, and ceiling height. Then measure and mark the positions of every fixed element: the door and its swing direction, window position and reveal depth, existing pipe positions (soil-pipe centre, supply pipes), and any structural elements such as load-bearing walls or chimney breasts.

Measure the finished dimensions, not the bare ones. A 1200mm shower enclosure ordered against a 1240mm bare wall measurement becomes a problem when 40mm of tile depth on each side reduces the available opening to 1160mm.

Read more: How to Measure Your Bathroom

Plan the layout

Draw the layout to scale on graph paper or using an online bathroom planner before committing to any products. Place the toilet first, as its position is dictated by the soil pipe, and changing it is one of the most expensive decisions in a renovation. Then work everything else around it.

Minimum clearances to work to:

  • 600mm in front of every fixture (standing and use space)

  • 300mm either side of the toilet centreline where possible

  • 700mm between facing fixtures

Consider the door swing. A shower enclosure door that cannot open fully because it meets the toilet is a frustration you will encounter every single morning. Mark the door swing on your plan before finalising anything.

Consider sightlines. The toilet should not be directly visible from the door when it opens. In open-plan properties or bathrooms adjacent to living areas, think about sound as well as sight.

Related: Bathroom layout ideas

Know your water pressure

Water pressure determines which products you can install. Getting this wrong results in a shower that cannot deliver adequate pressure, or a mixer tap that performs poorly because it was specified for a system it is not compatible with.

UK homes typically have one of three systems:

  1. Gravity-fed (low pressure): common in older homes, with a cold water tank in the loft feeding a hot water cylinder. Low pressure. Compatible with electric showers, power showers with an integrated pump, and separate hot and cold taps designed for low-pressure systems. Not compatible with most thermostatic mixer showers without a pump.

  2. Combi boiler (high pressure): no tanks required. Cold water is heated on demand. Consistent high pressure to all outlets. Compatible with thermostatic mixer showers, rainfall showerheads, and modern mixer taps and bath fillers.

  3. Unvented system (high pressure): mains cold water stored in a pressurised hot water cylinder. High, balanced pressure to both hot and cold. Compatible with multi-outlet shower systems, body jets, and wall-mounted taps.

If you are unsure which system you have, ask your plumber before specifying any shower or shower valve. Moving pipework or adding a pump to compensate for a mismatched specification adds cost that could have been avoided.

Choosing a bathroom style

Style direction needs to be set before individual products are chosen. Without it, the bathroom ends up assembled rather than designed, and individual elements that look fine in isolation do not create a coherent room. Choose one:

  • Modern and contemporary: clean lines, minimal ornamentation, concealed cisterns, wall-hung sanitaryware, and a restricted palette. Wall-hung vanity units, rimless toilets, frameless shower enclosures, and matt or brushed finishes are the typical product choices.

  • Traditional and period: inspired by Victorian, Edwardian, or classic country-house aesthetics. Freestanding baths, slipper and roll-top baths, close-coupled toilets, chrome or gold fixtures, and traditional vanity units. The style rewards consistency – a single modern tap in a traditional bathroom reads as an oversight.

  • Transitional: the broadest category, blending contemporary proportions with warmer finishes and some classical detailing. Suits most UK homes and ages well because it does not rely on trend-specific elements.

Choose a finish and apply it consistently. Chrome, brushed brass, matt black, brushed nickel, or gold. Pick one and use it across taps, shower fittings, towel rail, and accessories. Mixing finishes across a bathroom creates visual clutter that is disproportionate to the cost of the individual items.

With colour, white sanitaryware remains the most practical and timeless choice. It works with any tile, any paint colour, and any style direction. Grey, black, and gold bathroom furniture all offer strong style options without the inflexibility of coloured sanitaryware.

Choosing your toilet

Three main mounting types determine the look, installation requirements, and cleaning ease of the toilet:

  • Close-coupled toilets have the cistern sitting directly on top of the pan. The most common type in UK bathrooms, straightforward to install and replace, and available at every price point.

  • Back-to-wall toilets have the pan mounted against the wall with a concealed or semi-concealed cistern—a cleaner look than close-coupled, easier to clean around, and compatible with most standard bathroom layouts.

  • Wall-hung toilets are mounted directly to the wall with no contact with the floor. The cistern is concealed within the wall behind a false wall or furniture unit. This must be installed during the first-fix stage of a renovation, before walls are closed. The pan height can be adjusted to suit the user. Floor cleaning is significantly easier.

  • Rimless toilets have no hidden ledge under the rim where bacteria accumulate. They are easier to clean thoroughly and are worth considering across all mounting styles.

Decide on the toilet type before the first fix begins. A wall-hung toilet requires a concealed cistern frame to be built into the wall. This cannot be added after tiling without significant disruption.

Browse our full range of toilets or take a look at our toilet buying guide.

Choosing your shower

A bath or a shower is no longer a binary choice. Most bathrooms can accommodate both if the layout and budget allow. If choosing one, showers suit busy modern households where speed and convenience matter more than the experience of soaking. Baths suit households where that option is valued, particularly families with young children or anyone who will miss the bath within a year of removing it.

Shower enclosures enclose the shower in a dedicated space, with a tray and glazed panels. Available in a wide range of formats:

Confirm the exact finished dimensions before ordering tiles. The tile grid and grout lines need to work around the opening.

Shower valves determine the showering experience more than the enclosure or showerhead. A thermostatic shower valve maintains a consistent water temperature regardless of pressure fluctuations elsewhere in the system. Available in concealed and exposed formats. Always confirm water pressure compatibility with your plumber before specifying.

Electric showers heat water on demand from the mains cold supply, independent of the boiler. Suited to homes with low hot water availability or where reliability is a priority. See our electric showers.

Related: Shower enclosure buying guide

The bath is usually the largest item in the room and should be one of the first products confirmed. Its dimensions affect the layout of everything else.

  • Inset baths sit within three walls with a bath panel on the exposed side. The standard choice for most UK family bathrooms.

  • Freestanding baths require clear space on most or all sides and suit larger rooms. They are a strong aesthetic statement and work best when the rest of the room is designed around them rather than fitted around an existing layout.

  • Shower baths have a widened end that creates usable standing space for showering while maintaining full bath length, the practical solution for smaller bathrooms where both functions are wanted in a limited footprint.

  • Corner baths fit into a corner of the room and can work well in rooms with an awkward shape where a standard rectangular bath would leave wasted space.

On materials: acrylic is lightweight, affordable, and retains heat reasonably well. Carronite baths reinforce acrylic with a composite backing for a more solid feel. Steel and cast iron baths are heavier but retain heat significantly better and have a longer lifespan.

Confirm the bath dimensions against the finished room dimensions (after tiling) before ordering. Measure the access route from the front door to the bathroom, as large baths can be difficult to manoeuvre through narrow hallways or around tight stairwells.

For help, read our bath buying guide or our standard bath size guide.

Choosing your shower

A bath or a shower is no longer a binary choice. Most bathrooms can accommodate both if the layout and budget allow. If choosing one, showers suit busy modern households where speed and convenience matter more than the experience of soaking. Baths suit households where that option is valued, particularly families with young children or anyone who will miss the bath within a year of removing it.

Shower enclosures enclose the shower in a dedicated space, with a tray and glazed panels. Available in a wide range of formats:

Confirm the exact finished dimensions before ordering tiles. The tile grid and grout lines need to work around the opening.

Shower valves determine the showering experience more than the enclosure or showerhead. A thermostatic shower valve maintains a consistent water temperature regardless of pressure fluctuations elsewhere in the system. Available in concealed and exposed formats. Always confirm water pressure compatibility with your plumber before specifying.

Electric showers heat water on demand from the mains cold supply, independent of the boiler. Suited to homes with low hot water availability or where reliability is a priority. See our electric showers.

Related: Shower enclosure buying guide

Choosing your basin

The choice of bathroom basin and sink is closely tied to the storage decision. A pedestal or semi-pedestal basin looks neat but provides no storage. A vanity unit combines the basin with under-sink storage in a single footprint, making it the more practical choice for a main bathroom. Choose from:

  • Wall-hung basins are fixed directly to the wall with no pedestal or furniture beneath. They create more floor space visually and make cleaning easier.

  • Semi-pedestal basins feature a partial column that conceals the waste pipe without occupying the full floor space. A good middle ground between a full pedestal and a wall-hung option.

  • Countertop basins sit on a surface or vanity unit rather than being integrated into it. A strong visual statement, popular in contemporary and luxury bathrooms.

Size matters more than most people plan for. A basin that is too narrow for the space makes it difficult to use without splashing the floor or the wall. Choose the largest basin the layout can accommodate rather than the smallest one that technically fits.

Related: Basin Buying Guide

Choosing bathroom taps

Taps are used multiple times a day, and the quality difference between a well-made tap and a cheap one is immediately apparent. Spend properly on taps relative to the rest of the bathroom; they are not the place to cut the budget.

  • Basin taps are available as monobloc mixers (single-hole fittings with hot and cold mixed through one spout), pillar taps (separate hot and cold), or wall-mounted. Monobloc mixers require a single tap hole in the basin. Confirm the number of tap holes in your chosen basin before selecting taps. See our basin taps.

  • Bath taps include deck-mounted (fitting through holes in the bath deck), freestanding floor-mounted (for freestanding baths), and wall-mounted options. For a freestanding bath, confirm whether you want taps through the bath or free-standing before ordering the bath itself – this affects whether tap holes are needed. See our bath taps.

Choose one finish and apply it to all taps, the shower valve, the towel rail, and the room's accessories. A single, inconsistent finish in an otherwise coherent room is more noticeable than almost anything else.

Note the water pressure compatibility. Mixer taps and thermostatic bath-shower combinations typically require a minimum working pressure to perform properly. Confirm compatibility with your plumber before purchasing, particularly if you are on a gravity-fed system.

Related: Bathroom Tap Buying Guide

Choosing bathroom furniture and storage

Storage is the element most consistently underplanned in bathroom renovations. Toiletries, medicines, towels, cleaning products, hairdryers, and styling tools accumulate quickly. A bathroom without adequate storage looks cluttered within days of completion, regardless of how well everything else was specified.

Vanity units integrate the basin with drawer or door storage underneath. Available as wall-hung units and freestanding vanities, in sizes from 500mm to 600mm and larger. For two-person bathrooms, a double sink vanity unit is worth considering.

Read more: Vanity Unit Buying Guide

Other bathroom storage includes:

Plan storage as part of the layout, not as an afterthought. Storage added after the room is completed rarely fits as well, costs more, and never looks as intentional.

Related: Bathroom Furniture Buying Guide

Choosing bathroom heating

Bathroom heating does two things: it keeps the room comfortable to use, and it maintains a background temperature that controls condensation and dampness. Getting the heat output right for the room size is as important as the product's style.

  • Heated towel rails are the standard choice for most UK bathrooms. They warm the room and keep towels dry and warm between uses. Available as plumbed (central heating), electric, or dual fuel. Dual fuel is the most flexible option – it connects to the central heating system in winter and runs on an independent electric element in summer without the boiler running.

  • Bathroom radiators provide higher heat output than most towel rails and suit larger bathrooms where a towel rail alone cannot adequately heat the space.

To help you find the one you need, you'll need to know the BTU output, which measures how much heat a radiator or towel rail produces. To calculate the BTU your bathroom needs, multiply the room volume (length x width x height in metres) by 153. Always check the product's BTU output against this figure before purchasing.

Read more: Bathroom Heating Guide

Once you find the one you need, be sure to position it on the coldest wall, typically external or under a window. The towel rail specifically should be within reach of the shower or bath exit, at a height where towels hang fully clear of the floor.

Bathroom flooring and tiles

Bathroom flooring must be waterproof or highly water-resistant and slip-resistant when wet. The main options:

  • Ceramic and porcelain tiles are the most durable and water-resistant option. Any floor tile in a wet bathroom must have a minimum R10 slip-resistance rating. R11 or above for shower enclosures and wet rooms. Order at least 10% more than the calculated area to cover cuts, breakages, and future repairs.

  • Luxury vinyl flooring is softer underfoot than tile, completely waterproof, and more forgiving in terms of slip resistance. See our bathroom vinyl flooring.

  • Engineered wood suits bathrooms where warmth underfoot is a priority, but requires careful sealing and is less suited to wet rooms or bathrooms with poor ventilation.

Bathroom tiles with full-height tiling in wet zones (shower walls, bath surround) are the most durable and hygienic option. Half-height tiling with moisture-resistant paint above is common in drier areas of the bathroom. Wet zones must be waterproofed (tanked) before any tiling takes place.

Bathroom wall panels are an alternative to tiles, with no grout lines, faster installation, and easier cleaning.

Bathroom Lighting and ventilation

Lighting

Bathroom lighting is regularly cut from budgets and consistently regretted. A single overhead light creates flat, unflattering illumination and leaves the mirror area poorly lit – which is precisely where task lighting matters most for grooming.

Plan a minimum of two layers:

  • Ambient lighting: ceiling-mounted LED spotlights to illuminate the room evenly. All bathroom lighting must carry an IP rating appropriate for the zone: minimum IP44 for Zone 2 (within 600mm of the bath or shower), IP45 for Zone 1 (directly over). Your electrician will advise.

  • Task lighting: a backlit mirror, illuminated mirror cabinet, or dedicated wall lights on either side of the mirror. This is the light you actually use to apply makeup, shave, or carry out a skincare routine.

All electrical work in bathrooms must comply with Part P of the Building Regulations and be carried out by a qualified electrician who can issue a certificate on completion.

Related: Bathroom Lighting: An In-depth Guide

Ventilation

Good ventilation prevents condensation, mould, and long-term damage to decorating, grout, and sealant. An undersized or poorly positioned extractor fan will not keep up with the moisture generated by a shower or bath.

To calculate the required extraction rate, multiply the room volume (length x width x height) by 15 (the minimum recommended air changes per hour for a bathroom). A fan rated below this figure will not adequately ventilate the room.

Humidity-sensing fans activate automatically when moisture levels rise, useful in en-suites and rooms where the fan is regularly forgotten. The fan must vent to the outside, not into a ceiling void or loft space. See our bathroom extractor fans.

Bathroom accessibility and future-proofing

Accessible bathroom features are worth considering at the renovation stage, regardless of whether they are needed immediately. Building them in during a full renovation costs very little. Retrofitting them later can be expensive and disruptive.

Practical considerations:

  • Walk-in shower enclosures with low or level-access thresholds are easier to use for everyone and essential for those with limited mobility.

  • Comfort-height toilets are easier to sit and stand from for older users and taller people-

  • Grab rails can be incorporated into the design rather than added as an afterthought. Blocking in the wall behind tiles during the first fix allows grab rails to be fitted later without needing to find studs.

  • Slip-resistant floor tiles and non-slip shower trays reduce the risk of falls for all users.

  • Lever-style taps and thermostatic shower valves are easier to operate for those with limited grip or dexterity.

When to splurge and when to save

Here is a practical way to think about where money is best spent:

Spend properly on:

  • The shower valve and showerhead: you use these every day, and poor water pressure or temperature inconsistency is a daily frustration

  • Taps: quality is immediately apparent in weight, feel, and longevity

  • The toilet: a comfort height, soft-close, rimless toilet is used multiple times daily by everyone in the household

  • Tiles: the largest visual surface in the room; cheap tiles look cheap and date quickly

  • The vanity unit: daily use, hundreds of drawer and door openings a year

More cost-conscious choices are reasonable for:

  • Bathroom accessories, such as toilet roll holders, robe hooks, and soap dispensers, can be replaced later without disruption

  • Bath panels are functional rather than visible in daily use

  • Standard pipework and fixings that are hidden within the structure

The buying process: what to do and in what order

  1. Set your budget, including a 10–20% contingency.

  2. Measure the room accurately in finished dimensions.

  3. Confirm your water pressure and plumbing setup.

  4. Draw the layout to scale and confirm the toilet position.

  5. Decide on suite or individual products.

  6. Choose your style direction and fixture finish.

  7. Select products in order of size: bath or shower enclosure first, then toilet, then basin, then storage, then taps and accessories.

  8. Confirm all products with your fitter before ordering.

  9. Check lead times and order everything before demolition begins.

  10. Confirm your contractor and agree on the sequence of work.

For a full stage-by-stage checklist covering every decision from budget to sign-off, see our bathroom renovation checklist or our bathroom renovation mistakes to avoid guide for help avoiding the most common mistakes.

Buying a bathroom FAQs

How much does it cost to buy a new bathroom suite?

A bathroom suite (toilet, basin, and bath or shower enclosure) costs between £300 and £800 at budget level, £800–£2,500 at mid-range, and £2,500 upwards for premium products. These are product costs only. Total installed costs, including labour, tiling, and materials, typically range from £4,000 to £8,000 for a standard full renovation.

How much does it cost to buy a bathroom?

The total cost of buying and installing a full bathroom in the UK ranges from around £2,000 for a cosmetic refresh (new suite, same layout, no plumbing changes) to £4,000–£8,000 for a full standard renovation, and £8,000–£15,000 or more for a large or high-specification bathroom. Labour typically accounts for 40–50% of the total cost.

What should I buy first when buying a bathroom?

Set your budget and measure the room before buying anything. Then confirm your water pressure and draw your layout to scale. Products should be purchased in order of size – the bath or shower enclosure first (the largest item), then the toilet, then the basin, then storage, then taps and accessories. Confirm all products with your fitter before ordering.

What is the most important thing to get right when buying a bathroom?

The layout. Specifically, the toilet position (governed by the soil pipe), the clearances around every fixture, and the door swing. These decisions affect every other choice in the room and are the most expensive and disruptive to change once the build is underway. Measure twice, plan on paper, and confirm with your fitter before ordering a single product.

Ready to buy a bathroom?

Browse our full range of bathroom suites, baths, shower enclosures, toilets, basins, vanity units, and bathroom furniture to start building your specification.

If you would like to see products in person before committing, visit our Birmingham showroom in Tyseley, call us on 0121 753 0700 or book a consultation to talk to our expert team for any help and advice. Our team has been advising on bathroom purchases since 1986 and can help you work through layout, product selection, and budget in one conversation.