- Postcode districts
- SM1, SM5, SM6
- Nearby
- Sutton, Mitcham and Morden
- Guide price
- Included with supply and fit
- Typical time on site
- survey visit plus design
- Water
- Very hard across most of Greater London
- Survey
- Free, at your home
What does a new bathroom design cost in Carshalton?
Design comes with the job: the survey, layout and itemised quote are free. In Carshalton, a complete designed, supplied and fitted bathroom typically costs £8,100–£15,000 including VAT. Prices in London run at about 25% above the national guide, mainly because of labour rates. The figure depends on the size of the room, whether anything moves, and the products you pick.
Survey and layout
- Layout options on paper
Detailed design
- Lighting and electrical plan
Full project
- Design, supply and fit
Guide prices for Carshalton including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Carshalton
We work right across Carshalton — SM1, SM5 and SM6 — and in neighbouring Sutton and Mitcham.
In Carshalton, many bathrooms are in flats or converted houses, so we check lease consents, access and the floor below before we price. For loft rooms and sloping ceilings in Carshalton homes, the design checks head height where you stand, not just the floor area. We measure Carshalton bathrooms on site before drawing anything, so layouts are based on your walls rather than a standard plan.
Most of Greater London has very hard water. 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 measured survey of the room, including ceiling heights, slopes, window and door positions and any boxing
- Layout options drawn to scale, showing the bath or shower, WC, basin, storage and towel rail
- A written, itemised quote, with the price fixed in writing once the layout and products are agreed
- Checks on the soil stack, waste routes, joist direction, water pressure, hot water system and existing electrics
Decisions to make first
Where the shower goes
A shower on an outside wall is easier to ventilate; one under a sloping ceiling needs full head height where you stand, not just at the high side.
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.
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.
