Loft bathrooms in Keynsham

Postcode districts: BS31
Nearby: Kingswood, Mangotsfield and Bishopsworth
Guide price: £6,600–£13,250
Typical time on site: 6–12 working days
Water: Hard across most of Somerset
Survey: Free, at your home

What does a loft bathroom cost in Keynsham?

In Keynsham, a loft bathroom typically costs £6,600–£13,250 including VAT, based on South West England prices. The figure depends on the size of the room, whether anything moves, and the products you pick.

Refit

£5,600–£8,700

Existing loft shower room

Typical

Signature

£8,200–£13,250

Fitted furniture to the eaves

New loft bathroom

£10,250–£18,250

Ventilation and electrics to regulations

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

Working in Keynsham

We work right across Keynsham — BS31 — and in neighbouring Kingswood and Mangotsfield.

Being a smaller town does not change how we work in Keynsham: free survey, written quote, one team. If your Keynsham 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 Keynsham house has a combi boiler, a loft shower can usually run on mains pressure without a pump.

Supplies across most of Somerset are hard. If your supply in Keynsham 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 drainage route from the loft to the soil stack with enough fall, or a pumped waste or macerator where the rules allow it
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
A check of the floor joists where a bath or large shower tray will sit

Decisions to make first

Eaves storage

Low cupboards built into the slope behind the WC or basin take clutter out of the room and hide the pipework.

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.

More about loft bathrooms

Loft bathrooms in Keynsham: questions

How much does a loft bathroom cost in Keynsham?

A loft bathroom in Keynsham usually costs £6,600–£13,250 including VAT. The final figure comes down to what you choose and what we find at the survey; your written quote lists every item so you can see where the money goes.

Do you cover BS31 in Keynsham?

Yes. We cover all of Keynsham, including BS31, and nearby Kingswood, Mangotsfield and Bishopsworth. Survey visits are free and arranged at a time that suits you.

Is the water hard in Keynsham?

Who handles building control for a loft bathroom in Keynsham?

Building control for Keynsham 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.

Electric shower or pumped shower in a loft?

An electric shower heats cold mains water as it flows, so it works in a loft whatever your hot-water system, but its flow is lower than a good pumped or mains-pressure mixer and it needs its own electrical circuit. A pumped mixer gives a stronger shower on a gravity system. See choosing a shower for the full comparison.