- Postcode districts
- AL7, AL8
- Nearby
- Hatfield, Hertford and St Albans
- Guide price
- Included with supply and fit
- Typical time on site
- survey visit plus design
- Water
- Very hard across most of Hertfordshire
- Survey
- Free, at your home
What does a new bathroom design cost in Welwyn Garden City?
Design comes with the job: the survey, layout and itemised quote are free. In Welwyn Garden City, a complete designed, supplied and fitted bathroom typically costs £6,900–£12,750 including VAT. Labour costs in East of England put local prices at about 6% above the UK guide figure. 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 Welwyn Garden City including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Welwyn Garden City
We cover every part of Welwyn Garden City, including AL7 and AL8, and nearby Hatfield (2.8 miles) and Hertford (5.5 miles).
Homes in and around Welwyn Garden City vary, so we look at the floor, the walls and the water system before we price anything. For loft rooms and sloping ceilings in Welwyn Garden City homes, the design checks head height where you stand, not just the floor area. We measure Welwyn Garden City bathrooms on site before drawing anything, so layouts are based on your walls rather than a standard plan.
Supplies across most of Hertfordshire are very 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 lighting and electrical plan showing switches, fittings, shaver socket and extractor fan
- A written, itemised quote, with the price fixed in writing once the layout and products are agreed
Decisions to make first
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.
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.

