What does a loft bathroom cost in Oxfordshire?
Our guide range in Oxfordshire is £7,300–£14,500 including VAT. Prices in Oxfordshire run at about 12% above the UK guide, based on South East England labour rates.
Refit
- Shower, basin and WC replaced
Signature
- Pump or macerator where needed
New loft bathroom
- Formed in an existing loft room
Guide prices for Oxfordshire including VAT. Your itemised written quote after the free survey is the price that counts.
Which towns do we cover in Oxfordshire?
Most of Oxfordshire has hard water. If your supply in Oxford 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. We plan loft bathrooms in Oxford around the roof line, so the shower sits where you can stand and the eaves become storage.
What the job includes
- A check of the floor joists where a bath or large shower tray will sit
- Fitted furniture made to the eaves, so the low space behind the slope becomes storage
- 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
- An extractor fan ducted through the roof or a gable wall, with the duct insulated through cold spaces
- A drainage route from the loft to the soil stack with enough fall, or a pumped waste or macerator where the rules allow it
Decisions to make first
Roof window
A roof window over the bath or shower brings daylight and fresh air, but plan the blind for privacy and expect condensation on cold glass.
Eaves storage
Low cupboards built into the slope behind the WC or basin take clutter out of the room and hide the pipework.
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
A bathroom inside an existing loft room does not usually need planning permission, but forming one is normally building-regulations work because of the new drainage, extract ventilation and electrics. A macerator or pumped WC is acceptable only where the home also has a WC on gravity drainage. Under the water fittings rules, a shower pump must never be connected directly to the mains supply.
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.

