Areas · Wales
Steel beam installers in Swansea
Load-bearing walls, knock-throughs, openings and steelwork across Swansea, with calculations and approvals arranged.
- Itemised written quote
- Beam sized by a structural engineer
- Covering Swansea 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 Swansea
We fit steel beams and RSJs across Swansea: load-bearing wall removal, knock-throughs, chimney breasts, openings for extensions and bi-folds, loft and basement steels. We can survey in places such as Gorseinon and Clydach and the villages around them. Every job includes calculations from a structural engineer and the right approval for Wales.
In Swansea, 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 Swansea
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
Guide prices in Swansea
As a guide, budget £1,800–£4,550 including VAT for load-bearing wall removal with steel beam in Swansea, 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 Swansea
In Wales, structural alterations come under the Building Regulations 2010 as they apply in Wales. Swansea Council handles building control for Swansea. 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.
Steel beams in Swansea: questions
What happens at the survey visit in Swansea?
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.
Can you work on older or listed homes in Swansea?
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.
How soon can steel beam installation start in Swansea?
Start dates depend on the engineer's calculations, the building control approval and, where needed, party wall notice periods. We give you a realistic timetable after the survey and keep you updated as each approval comes through.
Do I need a party wall agreement for steel beam installation in Swansea?
Yes, if the beam bears into a shared wall: the Party Wall etc. Act 1996 applies in England and Wales, and a party structure notice must be served at least two months before that work starts. We arrange it through a party wall surveyor.
Who approves steel beam installation in Swansea?
Structural work in Swansea needs a building control application to Swansea Council under the Welsh regulations, with a commencement notice before work starts. We prepare and submit it with the structural engineer's calculations and arrange the inspections, so the completion paperwork follows the job.