Bangor, Gwynedd at a glance
- Postcode districts
- LL57
- Population
- about 18,322 (GeoNames)
- Council area
- Gwynedd Council
- Building approval
- Gwynedd Council building control, or a registered building control approver
- Nearest main town
- Colwyn Bay, about 17 miles
- Guide price region
- Wales (−8% on West Midlands rates)
What flat roof work do we do in Bangor, Gwynedd?
Garage roofs
If your garage in Bangor, Gwynedd has an old cement sheet roof, it will eventually crack and let in water. Any suspected asbestos is tested and removed by a licensed specialist first, then the garage can be given new timbers, a deck and a modern membrane that should last for decades with sensible maintenance.
Balconies and roof terraces
A roof terrace in Bangor, Gwynedd may be re-waterproofed when the owners want to change the finish, swapping old tiles for decking or porcelain on pedestals. Lifting the surface exposes the membrane, and replacing it then avoids having to lift the new finish again later.
Liquid-applied roofing
Where a building in Bangor, Gwynedd has an older asphalt or concrete roof that is sound but tiring, a compatible liquid system can sometimes refresh it. The key is matching the primer and system to the substrate and dealing with any blisters, cracks or poor falls before the membrane goes on.
All flat roof services in Bangor, Gwynedd:
- Flat roof surveys and leak tracing
- Commercial flat roofing
- Warm roof insulation upgrades
- Flats, HMOs and block roofs
- Emergency leak repairs
- Dormer roofs
- Green and sedum roofs
- Balconies and roof terraces
- Garage roofs
- Flat roof repairs
- GRP fibreglass roofing
- Extension and kitchen roofs
- Torch-on felt roofing
- Flat roof replacement
- Liquid-applied roofing
- Single-ply membrane roofing
- EPDM rubber roofing
How much does a flat roof cost in Bangor, Gwynedd?
Guide prices at Wales rates including VAT. New and replacement roofs get a fixed price after a free survey; repair prices are confirmed once we've found the problem.
| Job | Guide price inc VAT |
|---|---|
| Extension (20 m²), EPDM, new deck + insulation | £2,600–£4,500 |
| Extension (20 m²), felt, new deck + insulation | £2,500–£4,300 |
| Commercial roof (100 m²), single-ply + insulation | £12,150–£20,050 |
| Localised patch repair | £140–£460 |
| Balcony (12 m²), liquid-applied, scaffold | £1,750–£3,000 |
What flat roofs are typical in and around Bangor, Gwynedd?
In a town like Bangor, Gwynedd flat roofs are mostly on lock-up garage blocks on estates and 1930s semis with flat-roofed garages and kitchen extensions. The climate is part of the brief. Wales averages roughly 1,460 mm of rain a year, among the wettest in Britain, so we design for steady run-off: proper falls, clear outlets and upstands well above the finished roof. Approximate 1991–2020 regional averages based on Met Office data.
Who approves flat roof work in Bangor, Gwynedd?
Where approval is needed it goes to Gwynedd Council building control, or a registered building control approver. Welsh guidance is that most re-roofing needs building control approval, so it's worth checking whenever more than a quarter of a roof is replaced or repaired. How the rules work.
Which places near Bangor, Gwynedd do we cover?
Flat roofing in Bangor, Gwynedd: questions
Do you cover Bangor, Gwynedd?
Yes, including postcode districts LL57. Send your postcode with your enquiry and we'll arrange a survey.
Do you also cover Caernarfon?
Yes. Caernarfon is about 8 miles from Bangor, Gwynedd and we cover it too.
What's the best flat roof system for a house in Bangor, Gwynedd?
For most garages and extensions it's EPDM or GRP; torch-on felt is the budget option and liquid suits detailed or overlay jobs. We recommend one at the survey.
How much is a new flat roof in Bangor, Gwynedd?
A typical 18 m² EPDM garage roof is £1,450–£2,600 and a 20 m² insulated EPDM extension roof is £2,600–£4,500, at Wales guide rates including VAT.