Short answer: A like-for-like refurbishment of a small UK bathroom typically costs about £2,000 to £5,000 supplied and fitted. If you change the layout, retile fully or add new electrics, expect roughly £5,000 to £12,000. Scotland is often at or below the lower end of these ranges. Treat all figures as guides, not quotes, and get written prices for your own room.
Typical costs for a small bathroom renovation in 2026
There is no single price for a small bathroom, because two rooms of the same size can need very different amounts of work. The biggest question is whether you are keeping the existing layout or moving things around. Keeping the toilet, basin and bath or shower where they are means the pipework and waste stay largely as they are, which keeps labour down.
The ranges below come from UK trade cost guides for 2026. They are typical supply and fit figures, not prices from any particular company.
| Type of work | Typical UK cost (supply and fit) |
|---|---|
| Standard refurbishment, same layout | About £2,000 to £5,000 |
| Full renovation (new layout, tiling, electrics) | About £5,000 to £12,000 |
| Downstairs cloakroom WC | About £1,500 to £3,500 |
| Small wet room conversion (under 4 square metres) | About £4,000 to £6,000 |
| Medium wet room (4 to 7 square metres) | About £6,000 to £8,500 |
Labour is a large share of any bathroom job. A plumber or bathroom fitter typically charges about £200 to £350 a day, and an electrician about £150 to £300 a day. Prices in London and the South East tend to run 25 to 40% higher, while Scotland, the North East and parts of Wales are often at or below the lower end of the ranges.
If you want to see how these numbers compare with larger rooms, our guide to the average price to install a bathroom in the UK covers full-size bathrooms, en-suites and cloakrooms in more detail.
What pushes the price up in a small room
Small bathrooms are not always cheap bathrooms. Some jobs cost more per square metre because there is less room to work and every fitting has to be chosen carefully.
Moving the toilet or shower
The toilet waste is the hardest thing to move. Relocating it can mean lifting floorboards, rerouting the soil pipe or, in some cases, fitting a pumped waste system. Moving a shower to a new wall also adds pipework and may need a different waste route.
Hidden problems behind the old suite
Once an old bath or tiling comes off, fitters sometimes find rotten floorboards, old leaks or tired pipework. A sensible budget keeps some money back as a contingency for anything that only shows up during the strip out.
Tiling and finishes
Full height tiling takes longer than tiling a splashback and a shower area. Large format tiles can look great in a small room, but they need a flat wall and careful cutting. Wall panels are a quicker alternative in many bathrooms.
Electrics and ventilation
New lighting, a heated towel rail, a shaver point or an electric shower all involve an electrician. A small bathroom without a window also needs good mechanical ventilation to control condensation and mould. Electrical work in Scotland should follow BS 7671, so look for an electrician registered with SELECT or NICEIC.
Quality of fittings
Basic white suites are affordable. Concealed cisterns, wall-hung toilets, thermostatic showers and designer taps cost more, both to buy and to fit. Choose where to spend: the shower valve and the waterproofing matter more than the mirror.
How to make a small bathroom work harder
A good layout can make a small room feel much bigger without adding a square metre. These ideas are popular because they work.
- Swap the bath for a walk-in shower. If nobody in the house uses the bath, a shower with a low tray or a level floor frees up a lot of space and makes the room easier to use.
- Use wall-hung fittings. A wall-hung basin and toilet show more floor, which makes the room look larger and is easier to clean.
- Choose a short projection toilet or a compact basin. A few centimetres can be the difference between a door that clears the toilet and one that does not.
- Fit a sliding or outward opening door where possible, so the door swing does not eat into the room.
- Build storage into the wall. Recessed niches in the shower and a mirrored cabinet keep surfaces clear.
- Keep the colour scheme light and simple. Pale walls and a consistent floor make small rooms feel calmer. Our post on the best colour for a bathroom suite looks at the options, including colour contrast for people with sight loss.
Future-proofing a small bathroom for later life
If you are renovating anyway, it costs far less to build in a few accessibility features now than to rip the room out again in ten years. Most of these features look like ordinary good design, so they will not make the room feel clinical.
- A low or level access shower. A walk-in shower with no step or a very low tray is easier for everyone, from small children to someone recovering from an operation.
- Wall reinforcement. Ask your fitter to add timber or board behind the walls near the toilet and shower, so grab rails can be fixed securely later without retiling.
- A thermostatic shower. This keeps the water at a steady temperature and lowers the risk of scalding.
- Slip resistant flooring. Choose a floor that stays grippy when wet.
- Comfortable heights. A slightly taller toilet and a basin at a sensible height make sitting and standing easier.
- Good lighting. Bright, even light with a switch that is easy to reach helps at night.
If you already know someone in the household has reduced mobility, you can go further with a disabled walk-in shower, a fold-down shower seat and properly fitted grab rails. Our bathroom adaptations service covers smaller changes like these. For a full breakdown of what a mobility conversion of a small room typically costs, read how much it costs to renovate a small mobility bathroom.
Help with costs for disabled people
If the work is needed because someone in the home is chronically sick or disabled, the adaptation of a bathroom can be zero rated for VAT under HMRC rules. People aged 60 or over can pay 5% VAT on certain items, such as grab rails and built-in shower seats, when the same installer supplies and fits them. In Scotland, councils may also give a grant under their Scheme of Assistance once an occupational therapist has assessed the need. These rules have conditions, so check with HMRC or your council before you rely on them.
DIY or a professional fitter?
Painting, changing a mirror or fitting a new toilet seat are reasonable DIY jobs. Waterproofing a shower, moving waste pipes, gas work and bathroom electrics are not. Poor waterproofing in particular can damage ceilings below and is expensive to put right.
When you compare quotes, check whether one company handles every trade or whether you will need to organise a plumber, electrician, joiner and tiler separately. A single team usually finishes faster and leaves fewer gaps between trades. Whoever you choose, ask for a written, itemised quote, proof of insurance, and details of any guarantee.
Ways to keep your small bathroom budget on track
- Keep the layout if it works. Leaving the toilet where it is often saves the most money.
- Decide everything before work starts. Late changes to tiles or fittings cause delays and extra labour.
- Get at least three written quotes that describe the same scope, so you are comparing like with like.
- Spend on what you touch and what keeps water out. The shower valve, tray or floor former and waterproofing are worth paying for.
- Hold a contingency for hidden problems under the floor or behind the walls.
Planning a small bathroom that will still suit you in years to come? We offer a free 3D design and a no-obligation quote, so you can see the layout before any work starts. Send us a message to request your free design.
Frequently asked questions
What is the cheapest way to renovate a small bathroom?
Keep the existing layout, choose a standard white suite, use wall panels or tile only the wet areas, and do simple jobs such as painting yourself. Leave plumbing, waterproofing and electrics to qualified trades.
How long does a small bathroom renovation take?
A standard bathroom typically takes about 5 to 10 working days, depending on how much tiling and plumbing is involved. A team that handles every trade itself can often finish faster than one waiting on outside contractors.
Is it worth replacing the bath with a shower in a small bathroom?
For many households, yes. A walk-in shower frees floor space and is easier to use as you get older. If you are thinking of selling, it can be worth keeping a bath somewhere else in the home, as some buyers with young children look for one.
Do I need a building warrant to renovate a small bathroom in Scotland?
Replacing a bathroom within a one or two storey house usually does not need a building warrant, although the work must still meet the building regulations. Knocking through a loadbearing wall, extending, or working in a house with three or more storeys generally does. Check with your council's building standards team.
