Loft bathrooms in Trowbridge

Postcode districts: BA14
Nearby: Westbury, Melksham and Bath
Guide price: £6,600–£13,250
Typical time on site: 6–12 working days
Water: Hard across most of Wiltshire
Survey: Free, at your home

What does a loft bathroom cost in Trowbridge?

For Trowbridge, our guide range for a loft bathroom is £6,600 to £13,250 including VAT. The figure depends on the size of the room, whether anything moves, and the products you pick.

Refit

£5,600–£8,700

Tiling, lighting, extractor fan

Typical

Signature

£8,200–£13,250

Walk-in shower under the ridge

New loft bathroom

£10,250–£18,250

New drainage route and water supply

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

Working in Trowbridge

As well as Trowbridge itself (BA14), we survey in Westbury, Melksham and Bath.

Homes in and around Trowbridge vary, so we look at the floor, the walls and the water system before we price anything. If your Trowbridge 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 Trowbridge house has a combi boiler, a loft shower can usually run on mains pressure without a pump.

Most of Wiltshire has hard water. If your supply in Trowbridge 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 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
An extractor fan ducted through the roof or a gable wall, with the duct insulated through cold spaces

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.

More about loft bathrooms

Loft bathrooms in Trowbridge: questions

How much does a loft bathroom cost in Trowbridge?

A loft bathroom in Trowbridge usually costs £6,600–£13,250 including VAT. Room size, layout changes and your choice of products move the figure within that range. The free survey gives you an itemised quote, fixed in writing once the details are agreed.

Is the water hard in Trowbridge?

Who handles building control for a loft bathroom in Trowbridge?

Building control for Trowbridge is handled by the local council or an approved inspector. If your job needs sign-off — for example a new circuit, new drainage or a new extractor where there was none — we tell you at the survey and handle the notification as part of the work.

How long does a loft bathroom take?

Allow 6–12 working days on site for most jobs, plus the lead time for products after you approve the quote. We give you a day-by-day plan before work starts in Trowbridge.

Can you put a toilet in a loft?

Yes, if the waste can fall to the soil stack or a macerator can be used. Gravity drainage is the first choice; a macerator is only allowed where the home already has a WC on gravity drainage, which in most houses means the main bathroom.