Loft bathrooms in Caernarfon

Postcode districts: LL55
Nearby: Bangor, Holyhead and Llandudno
Guide price: £6,000–£12,000
Typical time on site: 6–12 working days
Water: Soft across most of Gwynedd
Survey: Free, at your home

What does a loft bathroom cost in Caernarfon?

In Caernarfon, a loft bathroom typically costs £6,000–£12,000 including VAT, based on Wales prices. Labour costs in Wales put local prices at about 7% below the UK guide figure. The figure depends on the size of the room, whether anything moves, and the products you pick.

Refit

£5,100–£7,900

Existing loft shower room

Typical

Signature

£7,400–£12,000

Fitted furniture to the eaves

New loft bathroom

£9,300–£16,750

Ventilation and electrics to regulations

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

Working in Caernarfon

We cover every part of Caernarfon, including LL55, and nearby Bangor (8.3 miles) and Holyhead (18.8 miles).

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

Most of Gwynedd is supplied with soft water. If that holds for your street in Caernarfon, limescale on shower glass and heads builds up slowly and a squeegee after use is usually enough. Hardness varies street by street, so check the figure for your postcode with your water supplier.

What the job includes

An extractor fan ducted through the roof or a gable wall, with the duct insulated through cold spaces
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
Fitted furniture made to the eaves, so the low space behind the slope becomes storage

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.

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.

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 Caernarfon: questions

How much should I budget for a loft bathroom in Caernarfon?

A loft bathroom in Caernarfon 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.

Is the water hard in Caernarfon?

Who handles building control for a loft bathroom in Caernarfon?

Building control for Caernarfon 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 Caernarfon.

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.