- Postcode districts
- KT12, TW16, TW17
- Nearby
- Sunbury-on-Thames, West Molesey and Weybridge
- Guide price
- £7,300–£14,500
- Typical time on site
- 6–12 working days
- Water
- Hard across most of Surrey
- Survey
- Free, at your home
What does a loft bathroom cost in Walton-on-Thames?
Our guide price for a loft bathroom in Walton-on-Thames is £7,300–£14,500 including VAT. Prices in South East England run at about 12% 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
- Shower, basin and WC replaced
Signature
- Pump or macerator where needed
New loft bathroom
- Formed in an existing loft room
Guide prices for Walton-on-Thames including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Walton-on-Thames
We work right across Walton-on-Thames — KT12, TW16 and TW17 — and in neighbouring Sunbury-on-Thames and West Molesey.
Being a smaller town does not change how we work in Walton-on-Thames: free survey, written quote, one team. We plan loft bathrooms in Walton-on-Thames around the roof line, so the shower sits where you can stand and the eaves become storage. If your Walton-on-Thames loft shower is weak or the waste drains slowly, the fix is often in the pump or the pipe fall rather than the shower itself.
Supplies across most of Surrey are hard. If your supply in Walton-on-Thames 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
- Fitted furniture made to the eaves, so the low space behind the slope becomes storage
- A drainage route from the loft to the soil stack with enough fall, or a pumped waste or macerator where the rules allow it
- A shower pump on a gravity system, an electric shower, or advice on moving to mains pressure, depending on your system
- Electrics by a qualified electrician, tested and certified, then tiling, testing and handover
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.
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.

