Areas · Wales
Steel beam installers in Cardiff
Load-bearing walls, knock-throughs, openings and steelwork across Cardiff, with calculations and approvals arranged.
- Survey, design and installation in one
- Covering CF10, CF11, CF14, CF15
- Inspected before it is covered
- 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 Cardiff
From survey to sign-off, we install steel beams throughout Cardiff. We cover the city and its surrounding districts. The engineer sizes the steel from your survey, we deal with Cardiff Council, and our team fits, packs and fire protects it before plastering.
In Cardiff, 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 Cardiff
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 Cardiff
As a guide, budget £1,800–£4,550 including VAT for load-bearing wall removal with steel beam in Cardiff, 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 Cardiff
Welsh building regulations treat beams and new openings as controlled building work. We apply to Cardiff Council on your behalf before anything is removed, give the commencement notice the 2026 Welsh rules require, and the steel is checked before it is boxed in.
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 Cardiff: questions
Who approves steel beam installation in Cardiff?
Structural work in Cardiff needs a building control application to Cardiff 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.
Do you cover Cardiff for steel beam installation?
Yes. We carry out steel beam installation in Cardiff. Book a free survey visit and we will check the wall, arrange the engineer's calculations and send an itemised written quote.
How much does steel beam installation cost in Cardiff?
As a guide, budget £1,800–£4,550 including VAT for load-bearing wall removal with steel beam in Cardiff, 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.
Can you work on older or listed homes in Cardiff?
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.
Can I stay at home while the work is done in Cardiff?
Usually, yes. The work area is screened and floors are protected. The rooms either side of the opening are out of action for a few days, and there is some noise and dust while the masonry comes out.