Loft bathrooms in Wiltshire

What does a loft bathroom cost in Wiltshire?

Our guide range in Wiltshire is £6,600–£13,250 including VAT.

Guide prices for Wiltshire including VAT. Your itemised written quote after the free survey is the price that counts.

Which towns do we cover in Wiltshire?

• Swindon
• Salisbury
• Trowbridge
• Chippenham
• Melksham
• Warminster
• Calne
• Westbury
• Devizes

Supplies across most of Wiltshire are hard. If your supply in Swindon 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. If your Swindon home has a gravity-drained WC on another floor, a macerator in the loft may open up more layout options.

What the job includes

• 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 shower pump on a gravity system, an electric shower, or advice on moving to mains pressure, depending on your system
• A survey of the headroom across the room, with the usable height marked at each fitting position
• Electrics by a qualified electrician, tested and certified, then tiling, testing and handover
• A check of your hot-water system and of the pressure and flow you actually get at loft level

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.

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.

Gravity or pumped waste

Gravity is silent and maintenance-free. A pumped waste or macerator lets fittings sit away from the stack, provided the house has a WC on gravity drainage elsewhere.

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.