- Postcode districts
- BB1, BB2, BB3
- Nearby
- Blackburn, Haslingden and Accrington
- Guide price
- £5,600–£11,250
- Typical time on site
- 5–10 working days
- Water
- Soft across most of Lancashire
- Survey
- Free, at your home
What does a wet room cost in Darwen?
As a guide, budget £5,600 to £11,250 including VAT for a wet room in Darwen; 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.
Compact
- Floor former and linear or centre drain
Signature
- Underfloor heating option
Large or luxury
- Full conversion of a larger room
Guide prices for Darwen including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Darwen
We work right across Darwen — BB1, BB2 and BB3 — and in neighbouring Blackburn and Haslingden.
In Darwen, as anywhere, the age of the house decides a lot: pipe sizes, floor construction and where the soil stack runs. We quote wet rooms in Darwen only after looking at the floor construction, because that is where most of the cost difference lies. If you are planning a wet room in Darwen for level access, we design the fall and drain so the floor is flush from the doorway.
Most of Lancashire is supplied with soft water. If that holds for your street in Darwen, 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 pre-formed floor former with a linear or centre drain, or a screed laid to fall
- Slip-resistant porcelain floor tiles and wall tiling
- Strip-out, waste removal, a final flow test to the drain and handover
- Extractor fan and lighting by a qualified electrician, tested and certified, with underfloor heating if you choose it
Decisions to make first
Linear or centre drain
A linear drain along one wall lets the floor fall in a single direction, so large tiles can be laid without awkward cuts. A centre drain needs a four-way fall and suits smaller tiles or mosaic.
Former or screed
A pre-formed board gives a consistent fall and suits timber floors. A sand and cement screed suits concrete slabs and larger shower areas.
Rules that apply in England
In England, a new drain connection or changes at the soil stack can be building-regulations work under Part H, and new circuits or changes to the wiring in the room are notifiable under Part P. If the wet room is a newly formed bathroom, Approved Document F requires extract of 15 litres per second intermittent or 8 litres per second continuous.

