A bathroom installation replaces your old suite with new sanitaryware, a bath or shower, tiling and fittings, including the plumbing, electrics, ventilation and waterproofing needed for a complete, watertight room.
Whatever type of house you own in Bangor, Gwynedd, we start by looking at how a new bathroom would fit it rather than offering a standard package. We cover LL57 and LL59 and neighbouring places such as Caernarfon, Llandudno and Colwyn Bay. One named person looks after you from survey to handover, and nothing is booked until you hold our figure in writing, fixed for the work described.
- Guide price
- £4,600–£11,000 inc VAT
- Time on site
- 1–2 weeks per bathroom
- Postcodes
- LL57 and LL59
- Planning rules
- Wales
- Local area
- Isle of Anglesey
- Survey
- Free, with a written quote
How much does a new bathroom cost in Bangor, Gwynedd?
Use the table to gauge the cost of a new bathroom in Bangor, Gwynedd before we visit. Figures include VAT and are scaled for Wales, coming out about 8% below the national guide, which gives £4,600–£11,000 overall. After a free survey, you receive a fixed written price.
| Type of job | What it usually involves | Guide in Bangor |
|---|---|---|
| Shower room or en-suite | A compact room with a shower, basin and toilet, keeping the existing layout. | £3,700–£7,400 |
| Family bathroom | A full suite with bath and shower, new tiling, lighting and an extractor fan. | £4,600–£11,000 |
| Premium bathroom or wet room | Standalone bath, wet room or walk-in shower, underfloor heating and large-format tiles. | £11,000–£18,500 |
What moves the price up or down:
- Room size and the amount of tiling
- Suite, shower and tap specification
- Moving the toilet, bath or shower to a new position
- Condition of the floor, walls and existing pipework
What’s included?
- Measured survey and layout planning for your room
- New supply and waste pipework, including concealed fittings
- Electrics, lighting and extractor fan by qualified trades, with certificates
- Waterproofing behind showers and in wet areas
- Wall and floor tiling to your chosen design
- Heated towel rail, silicone sealing and a final clean
Local housing and a new bathroom
Slate defines much of Gwynedd, from quarrying villages such as Bethesda and Blaenau Ffestiniog with their stone terraces to slate roofs across the county. Bangor and Caernarfon have Victorian and Georgian streets, Anglesey has stone cottages and bungalows, and resorts such as Pwllheli and Barmouth have Victorian terraces and newer bungalows.
Stone and slate homes need breathable lime render and pointing, and slate roofs often need careful repair rather than replacement. Terraces suit loft conversions, and bungalows commonly take extensions and window upgrades.
Knowing the typical building types in Gwynedd helps, but a survey of your own home in Bangor, Gwynedd is what decides the right approach to a new bathroom.
Permissions for a new bathroom in Bangor, Gwynedd
England, Wales, Scotland and Northern Ireland each handle planning a little differently. Bangor, Gwynedd comes under Wales, covered below, and we raise any questions with the council before your quote is finalised.
Internal improvements do not need planning permission in Wales unless the building is listed.
Building Regulations in Wales cover notifiable electrical work, drainage, ventilation and any structural change.
Rules change and every property is different, so we check the planning history and constraints for your address before we quote.
What happens after you get in touch?
Survey and measure
Book a visit and we'll come to you. The survey covers measurements, the state of what's there now and any obvious constraints, so the price that follows is based on your actual home, not an average.
Your fixed price
The quote arrives in writing, not over the phone. It covers the full scope, the finishes you've chosen, any exclusions and the payment schedule, with a fixed price tied to that specification.
Getting ready
Next comes planning the work itself. We set a start date that suits you, line up the right trades, and make sure any approvals for a new bathroom are in place before the first day on site.
Build and hand over
During the work we protect the areas around it and tidy up at the end of each day. Once complete, we check the finish, remove our materials and hand over paperwork such as building control sign-off where it applies.
How we work
Frequently asked questions
Which tiles are easiest to keep clean?
Large-format porcelain tiles are usually easiest to keep clean, because there are fewer grout lines to collect dirt and porcelain absorbs very little water. Glossy tiles show water marks more than matt ones, while textured floor tiles give better grip. Grout colour matters too: mid-grey hides staining better than white. We can suggest anti-slip ratings and grout options that suit how you use the room.
What ventilation does a bathroom need?
A bathroom needs mechanical ventilation, usually an extractor fan, to remove steam and help prevent condensation and mould. Building regulations set minimum extraction rates for new or refitted bathrooms. A fan linked to the light with an overrun timer, or one with a humidity sensor, works well. Ducting should vent outside by the shortest practical route. We include a suitable fan in every bathroom quote.
What happens at the survey?
We visit your home at a time that suits you, look at the area involved, take measurements and check access, condition and any services that might be affected. We talk through what you want from a new bathroom, explain the options and answer questions. There is no charge and no obligation; afterwards we send a written quote.
Do you cover Caernarfon, Llandudno and Colwyn Bay?
Yes. As well as Bangor, Gwynedd, we cover Caernarfon, Llandudno and Colwyn Bay and the rest of Gwynedd. Our coverage is UK-wide, so the process is the same wherever you are: a free site survey, a quote in writing that fixes the price for the agreed scope, and one point of contact while the work is planned and carried out.
How much does a new bathroom cost?
A typical family bathroom costs £4,600–£11,000 supplied and fitted, including tiling, a new suite, shower, lighting and an extractor fan. Shower rooms and simple en-suites cost a little less, while wet rooms, standalone baths and large-format tiles cost more. Moving the toilet or replacing rotten floorboards adds to the total. We confirm a fixed price for the agreed specification after the survey.
Nearby towns
We cover every part of Bangor, Gwynedd, including LL57 and LL59, and nearby Caernarfon, Llandudno and Colwyn Bay. Wherever you are within that patch, the survey is free and the quote comes to you in writing.

