- Postcode districts
- BN7
- Nearby
- Rottingdean, Peacehaven and Brighton
- Guide price
- £7,300–£14,500
- Typical time on site
- 6–12 working days
- Water
- Hard across most of East Sussex
- Survey
- Free, at your home
What does a loft bathroom cost in Lewes?
In Lewes, a loft bathroom typically costs £7,300–£14,500 including VAT, based on South East England prices. We adjust the national guide for South East England, where prices are typically about 12% above the UK average. The figure depends on the size of the room, whether anything moves, and the products you pick.
Refit
- Shower, basin and WC replaced
Signature
- Pump or macerator where needed
New loft bathroom
- Formed in an existing loft room
Guide prices for Lewes including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Lewes
In Lewes we cover BN7; we also cover Rottingdean, 5.3 miles away, and Peacehaven.
Lewes gets the same process as anywhere else: a free survey at your home and a written, itemised quote. If your Lewes home has a gravity-drained WC on another floor, a macerator in the loft may open up more layout options. If your Lewes 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 East Sussex is hard. If your supply in Lewes 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
- A check of your hot-water system and of the pressure and flow you actually get at loft level
- An extractor fan ducted through the roof or a gable wall, with the duct insulated through cold spaces
- A shower pump on a gravity system, an electric shower, or advice on moving to mains pressure, depending on your system
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.
Eaves storage
Low cupboards built into the slope behind the WC or basin take clutter out of the room and hide the pipework.
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.

