- Postcode districts
- HP4
- Nearby
- Chesham, Hemel Hempstead and Amersham on the Hill
- Guide price
- £6,900–£13,750
- Typical time on site
- 6–12 working days
- Water
- Very hard across most of Hertfordshire
- Survey
- Free, at your home
What does a loft bathroom cost in Berkhamsted?
Guide price in Berkhamsted: £6,900–£13,750 including VAT, depending on the room and what you choose. Prices in East of England run at about 6% 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.
Refit
- Tiling, lighting, extractor fan
Signature
- Walk-in shower under the ridge
New loft bathroom
- New drainage route and water supply
Guide prices for Berkhamsted including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Berkhamsted
As well as Berkhamsted itself (HP4), we survey in Chesham, Hemel Hempstead and Amersham on the Hill.
Berkhamsted gets the same process as anywhere else: a free survey at your home and a written, itemised quote. If your Berkhamsted loft conversion has a bedroom but no bathroom, the survey starts with where the soil stack runs and how much headroom you have. If your Berkhamsted house has a combi boiler, a loft shower can usually run on mains pressure without a pump.
Most of Hertfordshire has very hard water. If your supply in Berkhamsted 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
- Electrics by a qualified electrician, tested and certified, then tiling, testing and handover
- A check of the floor joists where a bath or large shower tray will sit
- 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
Decisions to make first
Bath or no bath
A bath under the slope makes good use of low space, but the floor has to carry it when it is full of water and someone is in it.
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.
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.

