Cracked tiles, a shower that leaks into the ceiling below, or one bathroom shared by the whole family every morning: these are the reasons most homeowners call us about a new bathroom. A well-planned bathroom installation solves the daily problem as well as the look.
A standard new bathroom costs £6,000 to £8,000 supplied and fitted, and the mid-range average in the Midlands is about £6,300, with most fits taking 6 to 8 days (MyJobQuote new bathroom guide, July 2026). Replacing a bathroom rarely needs planning permission, but new circuits and any addition or alteration to the electrics in a bathroom are notifiable under Part P, and a new extractor fan must extract at least 15 litres per second.
5K Construction has more than 10 years of building experience and 500+ completed projects across Wolverhampton and the West Midlands. One team handles your bathroom installation from the strip-out to the final seal, including the plumbing, electrics, tiling and plastering.
From a complete bathroom refit to a toilet squeezed under the stairs, these six bathroom installation services cover every type of bathroom in a family home.
Bathroom fitting covers the full job: strip-out, new pipework and electrics, plastering, tiling, the new bathroom suite and the final seal. A standard bathroom costs £6,000 to £8,000 supplied and fitted, with labour usually £1,800 to £4,000 and most fits taking 6 to 8 days (MyJobQuote, July 2026).
An en-suite adds a private bathroom to a bedroom or a new loft room, and is one of the most requested upgrades in family homes. Cost depends mostly on how far the new room is from the existing soil pipe: an en-suite next to an existing bathroom typically costs £5,000 to £7,000, while one at the far end of the house or in a loft can exceed £12,000 (BookaBuilderUK, 2026).
A wet room replaces the shower tray with a fully waterproofed, level floor that falls gently to a drain. It suits small rooms and anyone who needs level access. The average wet room costs about £5,500, within a range of £4,000 to £7,000, and takes 4 to 7 days; full-room tanking adds £300 to £800 (MyJobQuote, September 2026).
A shower room swaps the bath for a walk-in shower or a large shower enclosure, freeing floor space in a small bathroom or a second bathroom. A small bathroom typically costs £2,200 to £5,500 to fit, and a shower enclosure £250 to £750 in materials (MyJobQuote, July 2026).
An accessible bathroom is designed around the person using it: a level access shower, grab rails, a higher toilet and space for a carer or wheelchair. A small disabled-access wet room conversion costs about £4,950 (MyJobQuote, September 2026), and councils in England can fund adaptations through a Disabled Facilities Grant of up to £30,000 (GOV.UK).
A downstairs toilet, often called a cloakroom, saves trips upstairs and takes pressure off the family bathroom. An under-stairs WC needs at least 70cm by 130cm of floor space and 2m of headroom at the toilet. The average downstairs toilet costs about £3,000, an under-stairs WC £1,000 to £2,000 near existing pipework, and a macerator £500 to £900 where no waste pipe is close (MyJobQuote, July 2026).
Start any bathroom installation with the problem you want to solve, then match it to the space you have. This is the same starting point we use at a site survey.
| Your situation | Space available | Usually the best fit |
|---|---|---|
| One tired family bathroom | Existing bathroom | Bathroom fitting with a new suite |
| Queues for the bathroom every morning | A large bedroom or box room next door | En-suite installation |
| A small bathroom with a bath nobody uses | Existing bathroom | Shower room or wet room |
| Someone finds stepping into a bath difficult | Existing bathroom or a ground floor room | Accessible bathroom with a level access shower |
| No toilet downstairs | Space under the stairs, 70cm by 130cm or more | Downstairs WC |
| A new loft bedroom needs a bathroom | The loft, planned with the conversion | En-suite as part of a Loft Conversions project |
A new bathroom installation typically costs £3,000 to £15,000, with an average of about £7,000, and the bathroom fitting cost for labour is usually 45% to 60% of that. In the Midlands, a mid-range bathroom averages about £6,300, slightly below the national figure (MyJobQuote, July 2026).
| Bathroom | Supplied and fitted |
|---|---|
| Small bathroom | £2,200 to £5,500 |
| Budget | £3,500 to £4,500 |
| Standard | £6,000 to £8,000 |
| Premium | £11,000 to £15,000 |
Source: MyJobQuote new bathroom guide, July 2026.
| Item | Typical cost |
|---|---|
| Bathroom fitter (labour, whole job) | £1,800 to £4,000, usually 45% to 60% of the bill |
| Fitter's day rate | About £320 on average |
| Electrics (lighting, extractor, circuits) | £900 to £1,200 |
| Wall tiling, mid-sized bathroom | £950 to £1,250 |
| Three-piece bathroom suite, installed | £350 to £1,100 |
| Shower enclosure (materials) | £250 to £750 |
| Skip hire | About £220 |
Source: MyJobQuote, July 2026.
| Project | Typical cost | Time on site |
|---|---|---|
| En-suite using existing pipework | £4,500 to £6,500 | 5 to 8 days |
| En-suite with moderate alterations | £6,500 to £9,000 | 7 to 12 days |
| En-suite with difficult plumbing or high-end finish | £9,000 to £12,000 or more | 10 to 15 days |
| En-suite in a loft or with a new soil stack | £10,000 to £15,000 or more | 2 to 3 weeks |
| Small wet room, about 2m by 2m (Midlands) | About £4,700 | 3 to 5 days |
| Standard wet room, 2m by 2.5m to 3m (Midlands) | About £5,900 | 4 to 7 days |
| Large or luxury wet room (Midlands) | About £8,350 | 6 to 10 days |
Sources: BookaBuilderUK en-suite guide, 2026 and MyJobQuote wet room guide, September 2026.
Most failures after a bathroom installation, such as leaks, mould and loose tiles, come from what is hidden behind the tiles. These are the parts of a bathroom fitting that matter most.
Every wet area needs a waterproof layer behind the tiles. In a wet room the whole floor and the lower walls are tanked, and full-room tanking typically costs £300 to £800 (MyJobQuote, September 2026). Around a shower enclosure, tile backer boards and a tanking membrane stop water reaching plasterboard and timber.
Approved Document F sets a minimum extract rate of 15 litres per second for a bathroom and 6 litres per second for a separate toilet (BEAMA Part F guide). An undersized or badly ducted extractor fan is a common cause of black mould on bathroom ceilings.
A room with a bath or shower is a special location under Part P, so new circuits and any addition or alteration to existing circuits are notifiable (IET). Lighting, shaver sockets, the extractor fan and underfloor heating must all be rated for their position in the room.
A thermostatic shower valve keeps the temperature steady when someone turns on a tap elsewhere in the house. Approved Document G requires baths in new homes to be limited to a maximum of 48°C, and thermostatic controls are recommended in any bathroom refurbishment (Bristan water safety guide).
Shower trays, wet room drains and toilets need a waste run with enough fall to the soil pipe, which is controlled by Approved Document H. Where gravity drainage is not possible, a macerator can pump waste away, but it needs maintenance and can be noisy, so gravity drainage is preferred (BookaBuilderUK, 2026).
Underfloor heating typically adds £300 to £400 and a heated towel rail about £430 (MyJobQuote, September 2026). Both keep the room warm and help it dry out faster after a shower.
Replacing a bathroom like for like rarely needs planning permission or building control. A bathroom installation that creates a new bathroom, en-suite or WC, or changes the drainage, electrics or structure, usually does.
| Work | What applies | Source |
|---|---|---|
| New bathroom, en-suite or downstairs WC | Building regulations approval for drainage and ventilation, with a building control completion certificate at the end | MyJobQuote, July 2026 |
| Electrics (Approved Document P) | Bathrooms are a special location: new circuits and any addition or alteration to existing circuits are notifiable, and must be certified through a competent person scheme or signed off by a registered third party | IET |
| Ventilation (Approved Document F) | Extractor fans of at least 15 litres per second in a bathroom and 6 litres per second in a separate toilet | BEAMA |
| Hot water (Approved Document G) | Baths in new homes limited to a maximum of 48°C | Bristan |
| Drainage (Approved Document H) | New drainage connections need building control approval | BookaBuilderUK, 2026 |
| Boiler or hot water system changes | A Gas Safe registered engineer, who must be registered by law | RoSPA |
| Moving or removing a wall | A structural engineer may be needed, typically £300 to £800 | BookaBuilderUK, 2026 |
| Listed buildings | Listed Building Consent for alterations that affect the building's character | City of Wolverhampton Council |
Keep the completion certificate and the electrical certificate. Without the completion certificate for a new WC or bathroom, a house can be harder to sell.
A bathroom installation designed to be safe for an older relative or someone with a disability can mean staying independently at home for years longer. Two forms of financial help are often missed.
If you or someone you live with is disabled, your council may fund adaptations such as a level access shower. In England the grant is up to £30,000, it does not affect any benefits you receive, and it can be paid in instalments as the work progresses or in full when it is finished, sometimes directly to the contractor (GOV.UK). Speak to your council before any work starts.
Providing, extending or adapting a bathroom, washroom or toilet in a disabled person's own home can be zero-rated for VAT when the work is needed because of their condition. A straight replacement of old sanitaryware with new does not qualify (HMRC VAT relief for disabled people).
A small disabled-access wet room conversion costs about £4,950 (MyJobQuote, September 2026).
Good bathroom design, whether for a full bathroom renovation or a simple refit, is mostly about storage, light and easy cleaning. These ideas make the biggest difference in real family bathrooms.
| Idea | Why it works |
|---|---|
| Walk-in shower instead of an unused bath | Frees floor space and is easier to step into |
| Wall-hung vanity unit and concealed cistern | Clear floor underneath makes cleaning quicker and small rooms feel larger |
| Recessed shelves or niches in the shower | No clutter on the floor; usually £150 to £400 each (MyJobQuote) |
| Large-format porcelain tiles | Fewer grout lines to clean and fewer places for mould to start |
| Heated towel rail and underfloor heating | Towels dry, the floor stays warm and the room dries faster |
| Mirror cabinet with lighting | Storage and task light where you need it most |
| Separate bath and shower in a family bathroom | Children can bathe while adults shower in the same room |
| Job | Typical time | Source |
|---|---|---|
| Standard bathroom | 6 to 8 days | MyJobQuote, July 2026 |
| Simple bathroom refit | About 5 days | MyJobQuote, July 2026 |
| En-suite | 1 to 2 weeks | BookaBuilderUK, 2026 |
| Wet room, standard | 4 to 7 days | MyJobQuote, September 2026 |
| Downstairs toilet | 7 to 10 days | MyJobQuote, July 2026 |
Within a typical en-suite, the strip-out takes 1 to 2 days, first fix 2 to 3 days, tiling 2 to 4 days and second fix 2 to 3 days (BookaBuilderUK, 2026).
If it is your only bathroom, plan for a week or more without a working shower during the bathroom installation. The old toilet can often be reconnected at the end of the day until the new one goes in, but the water may be off for parts of the strip-out and first fix days.
A second bathroom or en-suite is one of the most common home improvements, and one of the most valuable. Nationwide Building Society research published in October 2025 found that:
Adding a double bedroom and a bathroom to a three-bedroom, one-bathroom house can add up to 24% to its value.
Source: Nationwide Building Society, October 202542% of homeowners who renovated had added a bathroom or en-suite.
Source: Nationwide Building Society, October 202525% had added an extra toilet.
Source: Nationwide Building Society, October 2025A tired bathroom can also hold a sale back, because buyers price in the cost of replacing it. A clean, well-ventilated bathroom with a working shower, good storage and no signs of leaks is what most buyers look for.
The most expensive bathroom installation problems are the ones you cannot see until a ceiling stains or a tile drops off.
A bathroom installation needs plumbing, electrics, plastering, waterproofing and tiling to be done in the right order, by people who check each other's work. This is what you get with 5K Construction.
10+ years and 500+ projects.Bathrooms, kitchens, extensions, lofts and renovations across Wolverhampton and the West Midlands.
Survey first, price second.We find the soil pipe, check the floor and the ventilation before we quote, so the price fits your bathroom.
Every trade coordinated.One team schedules the strip-out, first fix, waterproofing, tiling and second fix.
Building work included.Moving walls, adding a WC or creating an en-suite is handled by the same team as the tiling.
A clear written quote.Inclusions, exclusions and VAT set out in writing, so you can compare like for like.
Local and easy to reach.Based at 40A Oaklands Rd, Wolverhampton WV3 0DS, and open seven days a week.
Accountable.Our insurance and trade accreditations and our complaints procedure are published in full. Learn more about our Wolverhampton building company.
Finished bathroom installation projects in homes like yours show what is possible in the space you have.
We carry out bathroom installation from our Wolverhampton base and across the towns below.
A new bathroom typically costs £3,000 to £15,000 supplied and fitted, with an average of about £7,000. MyJobQuote's July 2026 guide puts a standard bathroom at £6,000 to £8,000 and a mid-range bathroom in the Midlands at about £6,300. Labour is usually 45% to 60% of the bill.
Most bathrooms take 6 to 8 days to fit, and a simple refit about 5 days. An en-suite usually takes one to two weeks, a wet room 4 to 7 days, and a new downstairs toilet 7 to 10 days. Moving pipework, structural changes or waiting for products adds time.
A like-for-like replacement usually does not. Creating a new bathroom, en-suite or downstairs toilet needs building regulations approval for drainage and ventilation, and any new or altered electrics in a bathroom are notifiable under Part P. Keep the completion certificate, because buyers will ask for it.
An en-suite typically costs £4,500 to £12,000, depending mainly on the plumbing. One next to an existing bathroom usually costs £5,000 to £7,000, while an en-suite in a loft or one needing a new soil stack can cost £10,000 to £15,000 or more and take two to three weeks.
A wet room costs about £5,500 on average, within a range of £4,000 to £7,000, and usually takes 4 to 7 days. In the Midlands, a small 2m by 2m wet room costs about £4,700 and a large or luxury wet room about £8,350. Full-room tanking adds £300 to £800.
Yes, you may. If you or someone you live with is disabled, your council can fund adaptations such as a level access shower through a Disabled Facilities Grant of up to £30,000 in England. Bathroom adaptations needed because of a disability can also be zero-rated for VAT.
For any new bathroom or toilet, yes. Approved Document F sets a minimum extract rate of 15 litres per second for a bathroom and 6 litres per second for a separate toilet. A correctly sized fan, ducted to the outside, helps prevent condensation and the black mould it causes on ceilings and grout.
Often, yes. An under-stairs toilet needs at least 70cm by 130cm of floor space and 2m of headroom at the toilet, plus an extractor fan. It typically costs £1,000 to £2,000 near existing pipework, and a macerator, costing £500 to £900, can pump waste where no soil pipe is close.
Yes, most people do. If it is your only bathroom, plan for about a week without a working shower and arrange to wash elsewhere. The water may be off for parts of the strip-out and first fix days, so agree a daily routine with your fitter before work starts.
The right bathroom installation starts with knowing where the soil pipe runs, what is under the floor and how well the room is ventilated. Book a site survey and we will measure up, talk through layouts and finishes, and follow up with a written quote.
