A whole-house renovation is a planned refurbishment of an entire home, typically combining rewiring, heating, plastering, new kitchen and bathroom, flooring and decoration, and sometimes layout changes, carried out in a logical order under one project.
Bangor, Gwynedd sits within our coverage for a whole-house renovation, as do neighbouring Caernarfon, Llandudno and Colwyn Bay. Before giving a price we want to see the property: the condition of what's there now, the access, and anything that might need extra work. The guide range for Wales is £41,500–£110,000 including VAT, and your written quote will spell out exactly what that covers.
- Guide price
- £41,500–£110,000 inc VAT
- Time on site
- 8–24 weeks on site, depending on scope
- Postcodes
- LL57 and LL59
- Planning rules
- Wales
- Local area
- Isle of Anglesey
- Survey
- Free, with a written quote
How much does a whole-house renovation cost in Bangor, Gwynedd?
The costs listed here are typical for a whole-house renovation around Bangor, Gwynedd and include VAT. They reflect labour and material costs in Wales, about 8% below the national guide, giving a range of £41,500–£110,000. Exact pricing depends on your home, so we only fix it once a free site survey is done.
| Type of job | What it usually involves | Guide in Bangor |
|---|---|---|
| Light refurbishment | Decoration, flooring, minor repairs and perhaps one new kitchen or bathroom. | £14,000–£41,500 |
| Full refurbishment | Rewire, heating, plastering, new kitchen and bathroom, flooring and decoration throughout a 3-bed house. | £41,500–£110,000 |
| Renovation with structural changes | A full refurbishment plus wall removal, layout changes or extra bathrooms. | £92,000–£166,000 |
Your price depends mostly on:
- Size of the house and number of rooms being renovated
- Whether rewiring, new heating and full replastering are needed
- Kitchen and bathroom specification
- Hidden problems such as damp, rot or outdated drainage
What’s included?
- Strip-out of old kitchens, bathrooms, flooring and finishes
- Rewiring and new consumer unit by qualified electricians, with certificates
- Heating and plumbing upgrades by qualified engineers
- Plastering, skimming and repairs to ceilings and walls
- New kitchen and bathroom fitted to your chosen specification
- Decoration and a final clean before handover
What are homes like around Bangor, Gwynedd?
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.
For a whole-house renovation in Bangor, Gwynedd, this means checking things like wall construction, roof structure and existing services before we put a figure on paper.
Do you need permission 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.
How does the job run?
Survey and measure
We arrange a free site survey on a date convenient to you. We measure up, look at the existing structure and access, and discuss your plans for a whole-house renovation so the price reflects your home.
Your fixed price
You get the price in writing, itemised so you can see where the money goes. As long as the specification stays the same, that is the price you pay for a whole-house renovation.
Getting ready
Once you accept, we agree start dates, order materials and deal with any planning, building control or neighbour notices the job needs. You'll know who is coming and when before work begins.
Finish and handover
Work goes ahead as scheduled and you deal with one contact throughout. When the last trade leaves, we clear and clean the site, talk you through what has been done and pass on any certificates and care instructions.
What you can expect from us
Questions about a whole-house renovation in Bangor, Gwynedd
How long does a full house renovation take?
A full renovation of a typical 3-bed house usually takes around 8–16 weeks on site, and longer if there are structural changes or extensive repairs. A light refresh may take only a few weeks. Material lead times for kitchens, windows and bathroom fittings also affect the programme. We give you a week-by-week plan with your quote and update it as the work progresses.
Which parts of a renovation need building regulations approval?
Several parts of a renovation fall under building regulations, including rewiring and new circuits, new boilers and heating systems, structural changes such as removing walls, replacement windows and changes to drainage. Some of this is self-certified by suitably registered trades, and some needs building control approval. In Scotland a building warrant may be needed for certain works. We arrange the right approvals and certificates.
Can we live in the house while it is renovated?
Living in a house during a full renovation is possible but hard, especially while rewiring, plastering and the kitchen and bathroom are being done. Many people move out for the noisiest weeks or stay elsewhere for the whole project. If you stay, we can phase the work room by room and keep one bathroom and a basic kitchen working for as long as possible. We discuss this at the survey.
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.
Can I stay at home during the work?
In most cases, yes. Most people can live at home throughout, and we plan the work to keep disruption down by protecting floors, agreeing working hours and keeping access routes clear. Bigger jobs affecting kitchens, bathrooms or heating may mean a short spell with reduced facilities, and we talk this through with you at the survey.
Near Bangor, Gwynedd
Whether you're in the centre of Bangor, Gwynedd or on its outskirts, LL57 and LL59 addresses are covered. We extend the same service, and the same fixed-price approach, to Caernarfon, Llandudno and Colwyn Bay.

