- Postcode districts
- WA9, WA10, WA11, WA12
- Nearby
- Prescot, Ashton in Makerfield and Huyton
- Guide price
- £6,100–£12,250
- Typical time on site
- 6–12 working days
- Water
- Soft across most of Merseyside
- Survey
- Free, at your home
What does a loft bathroom cost in St Helens?
As a guide, budget £6,100 to £12,250 including VAT for a loft bathroom in St Helens; your written quote will pin it down. We adjust the national guide for North West England, where prices are typically about 6% below the UK average. The figure depends on the size of the room, whether anything moves, and the products you pick.
Refit
- Shower, basin and WC replaced
Signature
- Pump or macerator where needed
New loft bathroom
- Formed in an existing loft room
Guide prices for St Helens including VAT. Your itemised written quote after the free survey is the price that counts.
Working in St Helens
We work right across St Helens — WA9, WA10, WA11 and 1 more postcode districts — and in neighbouring Prescot and Ashton in Makerfield.
St Helens has a wide mix of house ages, so the survey is where we spot old lead pipework, weak joists or a tight soil stack. If your St Helens loft shower is weak or the waste drains slowly, the fix is often in the pump or the pipe fall rather than the shower itself. For a loft bathroom in a tank-fed St Helens home, we work out how the shower will get its pressure before choosing a single fitting.
Most of Merseyside is supplied with soft water. If that holds for your street in St Helens, limescale on shower glass and heads builds up slowly and a squeegee after use is usually enough. Hardness varies street by street, so check the figure for your postcode with your water supplier.
What the job includes
- A check of the floor joists where a bath or large shower tray will sit
- Electrics by a qualified electrician, tested and certified, then tiling, testing and handover
- A check of your hot-water system and of the pressure and flow you actually get at loft level
- An extractor fan ducted through the roof or a gable wall, with the duct insulated through cold spaces
Decisions to make first
Where the shower goes
Under the ridge or in a dormer, where the full height is. A walk-in shower with a single panel is usually easier to fit to a roof line than a framed enclosure.
Getting the water pressure
A pumped shower suits a gravity system with a cold tank; an electric shower heats cold mains water at the point of use; a combi or unvented cylinder gives mains pressure throughout.
Rules that apply in England
In England, new drainage and a new connection to the soil stack fall under Part H, a new bathroom needs extract of 15 litres per second intermittent or 8 litres per second continuous under Approved Document F, and new circuits are notifiable under Part P. If the work includes an unvented hot-water cylinder, it must be fitted by a G3-qualified installer.

