- Postcode districts
- BS31
- Nearby
- Kingswood, Mangotsfield and Bishopsworth
- Guide price
- Included with supply and fit
- Typical time on site
- survey visit plus design
- Water
- Hard across most of Somerset
- Survey
- Free, at your home
What does a new bathroom design cost in Keynsham?
Design comes with the job: the survey, layout and itemised quote are free. In Keynsham, a complete designed, supplied and fitted bathroom typically costs £6,600–£12,250 including VAT. The figure depends on the size of the room, whether anything moves, and the products you pick.
Survey and layout
- Written, itemised quote
Detailed design
- Elevations and tile layouts
Full project
- One contract and one team
Guide prices for Keynsham including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Keynsham
We work right across Keynsham — BS31 — and in neighbouring Kingswood and Mangotsfield.
Keynsham gets the same process as anywhere else: a free survey at your home and a written, itemised quote. If your Keynsham bathroom has a soil stack in an awkward corner, the design starts there, because it is the one point that is costly to move. We measure Keynsham bathrooms on site before drawing anything, so layouts are based on your walls rather than a standard plan.
Supplies across most of Somerset are hard. We plan easy-clean glass, rimless toilets and finishes that do not show limescale. Hardness varies street by street, so check the figure for your postcode with your water supplier.
What the job includes
- A clear view of which changes are cheap and which mean moving drainage or opening floors
- Elevations and tile layouts on a design, supply and fit project, so the setting-out is agreed before tiling starts
- A written, itemised quote, with the price fixed in writing once the layout and products are agreed
- A lighting and electrical plan showing switches, fittings, shaver socket and extractor fan
Decisions to make first
The door
Re-hanging the door on the other side, fitting a sliding pocket door or moving the opening can free up a whole wall in a small room.
Keep or change the layout
Keeping the WC and shower where they are saves on plumbing. The WC is the costly one to move, because it is tied to the soil stack.
Rules that apply in England
In England, a new connection to the soil stack or new drainage can be building regulations work under Part H, and new circuits or alterations to circuits in the bathroom are notifiable under Part P. Where a new bathroom is formed, Approved Document F asks for extract at 15 l/s intermittent or 8 l/s continuous.

