Loft bathrooms in Cardiff

Postcode districts: CF10, CF11, CF24
Nearby: Penarth, Caerphilly and Barry
Guide price: £6,000–£12,000
Typical time on site: 6–12 working days
Water: Moderately hard across most of South Glamorgan
Survey: Free, at your home

What does a loft bathroom cost in Cardiff?

In Cardiff, a loft bathroom typically costs £6,000–£12,000 including VAT, based on Wales prices. Prices in Wales run at about 7% below 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

£5,100–£7,900

Tiling, lighting, extractor fan

Typical

Signature

£7,400–£12,000

Walk-in shower under the ridge

New loft bathroom

£9,300–£16,750

New drainage route and water supply

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

Working in Cardiff

As well as Cardiff itself (CF10, CF11 and CF24), we survey in Penarth, Caerphilly and Barry.

In a city the size of Cardiff, parking and access for a skip are worth sorting before the start date — we will ask at the survey. If your Cardiff home has a gravity-drained WC on another floor, a macerator in the loft may open up more layout options. If your Cardiff 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.

Water across much of South Glamorgan is moderately hard. A quick wipe of the glass and an easy-clean coating are worth having on a new shower in Cardiff. 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 shower pump on a gravity system, an electric shower, or advice on moving to mains pressure, depending on your system
A check of your hot-water system and of the pressure and flow you actually get at loft level
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

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 Wales

Wales applies its own Part P, with a wider notifiable list than England, and its own Part F with similar extract rates. Part H covers the new drainage route down from the loft.

More about loft bathrooms

Loft bathrooms in Cardiff: questions

How much does a loft bathroom cost in Cardiff?

A loft bathroom in Cardiff usually costs £6,000–£12,000 including VAT. Expect the lower end for a like-for-like job with standard products, and the upper end if things move or you choose premium finishes. Your quote is itemised and fixed in writing once agreed.

Do you cover CF10 in Cardiff?

Yes. We cover all of Cardiff, including CF10, CF11 and CF24, and nearby Penarth, Caerphilly and Barry. Survey visits are free and arranged at a time that suits you.

Is the water hard in Cardiff?

Who handles building control for a loft bathroom in Cardiff?

Building control for Cardiff 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.

Do I need a pump for a loft shower?

You need a pump if your hot water comes from a cylinder fed by a cold tank, because the tank usually sits at or below the height of a loft shower and gives almost no pressure. A combi boiler or unvented cylinder supplies mains pressure, so no pump is needed, though the flow can drop when other taps run. Shower pumps must only be used on gravity systems, never connected to the mains.