Gwynedd · Wales
Steel beam installers in Bangor, Gwynedd
RSJs and steel beams for homes and businesses in Bangor, Gwynedd, with calculations, approvals, propping and making good.
- Itemised written quote
- Beam sized by a structural engineer
- Covering Bangor, Gwynedd and nearby
- Free survey visit
- Engineer's calculations arranged
- Building control handled
- Fixed written price once scope is agreed
- England, Wales, mainland Scotland & NI
Steel beam work in Bangor, Gwynedd
Homes in Bangor, Gwynedd are covered for all our steel beam services. We also cover the surrounding towns and villages in Gwynedd. Every beam is sized from calculations, approved before work starts and inspected before it is covered.
In Bangor, Gwynedd, beam work is approved under the Building Regulations as they apply in Wales, and the Party Wall etc. Act 1996 applies to shared walls.
Services in Bangor, Gwynedd
Wall removal & knock-throughs
- Load-bearing wall removal
- Kitchen-diner knock-throughs
- Through-lounge knock-throughs
- Chimney breast removal
New & wider openings
- Wider doorways & openings
- Bi-fold & sliding door openings
- Garage conversion openings
- Lintel replacement
Extensions, lofts & basements
Beams, frames & columns
Design & approvals
- Structural calculations
- Building control sign-off
- Party wall beam works
- Fire protection for steel beams
Site works & commercial
What happens, step by step
Survey in Bangor, Gwynedd
We visit, look at the wall and what sits above it, measure the opening and note services, access and how the steel can be brought in.
Engineer's design
A structural engineer sizes the beam, padstones and any posts, and sets out the temporary support needed while the wall is out.
Building control
We submit the application or notice to Cyngor Gwynedd under the Building Regulations as they apply in Wales, before work starts.
Install and sign-off
Props go in, the opening is formed, the steel is set and packed, building control inspects it, and we make good.
Guide prices in Bangor, Gwynedd
As a guide, budget £1,800–£4,550 including VAT for load-bearing wall removal with steel beam in Bangor, Gwynedd, based on published UK cost guides adjusted for prices in Wales (-9%).
| Job | Typical guide range | What it usually covers |
|---|---|---|
| Load-bearing wall removal with steel beam | £1,800–£4,550 | Typical internal wall up to about 4 m: calculations, building control, propping, steel, padstones, fitting, fire protection and making good |
| Chimney breast removal (ground floor) | £1,350–£2,750 | Ground-floor breast removed, steel to support the breast above, building control and making good |
| Rear wall opening for bi-fold or sliding doors | £2,300–£6,350 | External wall opened up to about 5 m with steel, propping, cavity tray and making good (doors supplied separately) |
| Loft conversion steels | £2,300–£5,450 | Supply and fit of floor and ridge steels on padstones, including lifting into the roof space |
| Structural calculations for a beam | £230–£680 | Site measure or photos, beam and padstone design and calculations for building control |
Figures include our approximate regional adjustment for prices in Wales (-9%) and are rounded. How these figures are worked out.
Building rules in Bangor, Gwynedd
In Wales, structural alterations come under the Building Regulations 2010 as they apply in Wales. Cyngor Gwynedd handles building control for Bangor, Gwynedd. For work started or approved from 1 July 2026, the Welsh system uses an application to building control, dutyholders appointed in writing, a commencement notice before work starts and a compliance statement at the end.
Where the steel bears into a wall shared with next door, notice must be served under the Party Wall etc. Act 1996. If your neighbour dissents, surveyors agree how the work is done before it starts.
Near Bangor
- Menai Bridge 1.5 mi
- Llangefni 7.8 mi
- Caernarfon 8.6 mi
- Llandudno 14.0 mi
- Amlwch 15.4 mi
- Colwyn Bay 17.3 mi
Steel beams in Bangor, Gwynedd: questions
How much does steel beam installation cost in Bangor, Gwynedd?
As a guide, budget £1,800–£4,550 including VAT for load-bearing wall removal with steel beam in Bangor, Gwynedd, based on published UK cost guides adjusted for prices in Wales (-9%). The exact figure depends on the span, what the wall carries, access and the finish, and is fixed in writing once the scope is agreed.
Do you also work near Bangor, Gwynedd?
Yes. We also cover nearby towns including Menai Bridge, Llangefni, Caernarfon and Llandudno.
What happens at the survey visit in Bangor, Gwynedd?
We look at the wall, the floor and ceiling either side and what sits above, measure the opening you want, and note cables, pipes and access for the steel. It usually takes under an hour and there is no charge.
Do you cover Bangor, Gwynedd for steel beam installation?
Yes. We carry out steel beam installation in Bangor, Gwynedd and the LL57 postcode districts. Book a free survey visit and we will check the wall, arrange the engineer's calculations and send an itemised written quote.
Can you work on older or listed homes in Bangor, Gwynedd?
Yes. Older homes often have lime mortar, timber lintels or shallow footings, which the engineer allows for. Listed buildings need listed building consent for internal structural changes as well as building regulations approval, and that must be in place first.