- Postcode districts
- BB1, BB2, BB3
- Nearby
- Darwen, Accrington and Haslingden
- Guide price
- £6,100–£12,250
- Typical time on site
- 6–12 working days
- Water
- Soft across most of Lancashire
- Survey
- Free, at your home
What does a loft bathroom cost in Blackburn?
In Blackburn, a loft bathroom typically costs £6,100–£12,250 including VAT, based on North West England prices. 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 Blackburn including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Blackburn
In Blackburn we cover BB1, BB2 and BB3; we also cover Darwen, 3.7 miles away, and Accrington.
Blackburn has a wide mix of house ages, so the survey is where we spot old lead pipework, weak joists or a tight soil stack. For a loft bathroom in a tank-fed Blackburn home, we work out how the shower will get its pressure before choosing a single fitting. If your Blackburn 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.
Supplies across most of Lancashire are soft. If that holds for your street in Blackburn, 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 survey of the headroom across the room, with the usable height marked at each fitting position
- An extractor fan ducted through the roof or a gable wall, with the duct insulated through cold spaces
- A check of your hot-water system and of the pressure and flow you actually get at loft level
- Electrics by a qualified electrician, tested and certified, then tiling, testing and handover
Decisions to make first
Bath or no bath
A bath under the slope makes good use of low space, but the floor has to carry it when it is full of water and someone is in it.
Eaves storage
Low cupboards built into the slope behind the WC or basin take clutter out of the room and hide the pipework.
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.

