A roof replacement, or re-roof, strips the old tiles or slates, battens and felt from a pitched roof and replaces them with a new breathable membrane, battens and covering, repairing timbers and renewing ridges, valleys and flashings at the same time.
We take on a new roof throughout Bangor, Gwynedd and the surrounding LL57 and LL59 postcodes, as well as in Caernarfon, Llandudno and Colwyn Bay. The guide range for this work in Wales is £6,400–£14,000 including VAT; where your project falls depends on its size, the materials you pick and how easy the site is to reach. A free survey turns that range into a fixed figure.
- Guide price
- £6,400–£14,000 inc VAT
- Time on site
- 1–2 weeks on site, plus scaffolding time
- Postcodes
- LL57 and LL59
- Planning rules
- Wales
- Local area
- Isle of Anglesey
- Survey
- Free, with a written quote
Roof replacement prices in Bangor, Gwynedd
The costs listed here are typical for a new roof around Bangor, Gwynedd and include VAT. They reflect labour and material costs in Wales, about 8% below the national guide, giving a range of £6,400–£14,000. 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 |
|---|---|---|
| Terraced house or bungalow | A smaller pitched roof re-covered in concrete or clay tiles, including scaffolding. | £4,600–£9,200 |
| Typical semi-detached | A 3-bed semi re-roofed in concrete or clay tiles with new membrane, battens and leadwork. | £6,400–£14,000 |
| Detached or natural slate | Larger or more complex roofs, or any roof finished in natural slate. | £11,000–£23,000 |
The main things that change the figure:
- Roof area, pitch and the number of hips, valleys and dormers
- Condition of rafters, fascias and other timbers
- Chimneys, leadwork and roof windows to rework
- Scaffolding, access and the height of the house
What’s included?
- Survey of the covering, timbers, chimneys and loft ventilation
- Repairs or replacement of damaged rafters and fascia boards
- Breathable membrane and new treated battens
- New tiles or slates, or sound originals refitted where suitable
- Ridges, hips and verges dry-fixed or bedded, with new leadwork
- Waste removal by skip and a clean site on completion
Building in 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.
Eryri (Snowdonia) is among the wettest areas in the UK, and exposed coasts take strong wind and salt, so render and roof details need to be robust.
Whatever era your Bangor, Gwynedd home dates from, we plan a new roof around how it is actually built rather than a one-size-fits-all specification.
Planning and building rules in Bangor, Gwynedd
For anyone in Bangor, Gwynedd, the relevant framework is Wales's. The summary below is general, so we always contact the council about your address before putting a price in writing.
Re-roofing with similar materials does not usually need planning permission in Wales, except on listed buildings or where a conservation area restricts materials.
Building Regulations in Wales apply to major re-roofing, including insulation upgrades. Bats are protected across the UK; if they roost under roof tiles, soffits or fascias, work stops and a licensed ecologist advises before it restarts.
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?
A visit to your home
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 new roof so the price reflects your home.
Written quote
Next you receive a written quote with a fixed price for the agreed specification. It lists what is included, what is not, and how payments are staged, so you can compare it properly.
Plan and prepare
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 roof are in place before the first day on site.
Finish and handover
The work is carried out to the agreed specification, with floors and furniture protected and the site kept tidy. At the end we clean up, walk through the finished job with you and hand over any certificates.
What you can expect from us
Frequently asked questions
How long will a new roof last?
A well-installed roof lasts for decades. Concrete tiles typically last around 50 years or more, clay tiles longer, and natural slate can last a century with proper upkeep. Lifespan depends on the quality of materials, fixings, ventilation and leadwork, and on how exposed the roof is. Keeping gutters clear and fixing slipped tiles quickly helps it reach its full life.
Who do I deal with during the job?
One point of contact manages your project from survey to handover. They schedule the trades working under our contract, keep you updated on progress, and are the person to call with any question. You don't need to coordinate builders, electricians or decorators separately, because that is part of what we do.
Will my loft insulation and ventilation be improved?
Re-roofing is a good time to improve loft ventilation and insulation. A breathable membrane and eaves or ridge vents keep air moving and reduce condensation in the loft. Building regulations may require insulation upgrades when a large part of the roof is renewed. We check your current insulation and ventilation and include any required improvements in the quote.
Can you combine a new roof with other work?
Yes. Because we manage several trades under one contract, we can plan a new roof alongside other work on your Bangor, Gwynedd home, such as new windows with rendering, or a kitchen refit with an extension. Combining jobs can reduce repeat set-up such as scaffolding, skips and access, and every element is listed and priced in the same written quote.
Do I need planning permission to replace my roof?
Planning permission is not usually needed to re-roof in similar materials, but it depends on the change, your home's location, whether it is listed or in a conservation area, and which UK nation you live in. Changing the roof shape, height or covering material can need permission. Listed buildings need consent for re-roofing. We check the position for your home before quoting.
Near Bangor, Gwynedd
If your address falls within LL57 and LL59, we cover it. The same goes for neighbouring Caernarfon, Llandudno and Colwyn Bay, which we include alongside Bangor, Gwynedd when arranging surveys and quotes.