- Postcode districts
- EN4, EN5, HA8, N2, N3, N12 + 4 more
- Nearby
- Potters Bar, Borehamwood and Finchley
- Guide price
- £8,100–£16,250
- Typical time on site
- 6–12 working days
- Water
- Very hard across most of Greater London
- Survey
- Free, at your home
What does a loft bathroom cost in Barnet?
As a guide, budget £8,100 to £16,250 including VAT for a loft bathroom in Barnet; your written quote will pin it down. Labour costs in London put local prices at about 25% above the UK guide figure. The figure depends on the size of the room, whether anything moves, and the products you pick.
Refit
- Tiling, lighting, extractor fan
Signature
- Walk-in shower under the ridge
New loft bathroom
- New drainage route and water supply
Guide prices for Barnet including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Barnet
We work right across Barnet — EN4, EN5, HA8 and 7 more postcode districts — and in neighbouring Potters Bar and Borehamwood.
In Barnet, many bathrooms are in flats or converted houses, so we check lease consents, access and the floor below before we price. If your Barnet home has a gravity-drained WC on another floor, a macerator in the loft may open up more layout options. If your Barnet loft conversion has a bedroom but no bathroom, the survey starts with where the soil stack runs and how much headroom you have.
Water across much of Greater London is very hard. If your supply in Barnet is the same, limescale on shower glass and heads is a real issue: easy-clean glass, rub-clean nozzles and a squeegee make a big difference. 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
- A check of the floor joists where a bath or large shower tray will sit
Decisions to make first
Where the shower goes
Under the ridge or in a dormer, where the full height is. A walk-in shower with a single panel is usually easier to fit to a roof line than a framed enclosure.
Getting the water pressure
A pumped shower suits a gravity system with a cold tank; an electric shower heats cold mains water at the point of use; a combi or unvented cylinder gives mains pressure throughout.
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.
