Monmouthshire · Wales
Steel beam installers in Monmouth
RSJs and steel beams for homes and businesses in Monmouth, with calculations, approvals, propping and making good.
- Free survey visit in Monmouth
- Engineer's calculations arranged
- Building control handled for you
- 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 Monmouth
Homes in Monmouth are covered for all our steel beam services. We also cover the surrounding towns and villages in Monmouthshire. Every beam is sized from calculations, approved before work starts and inspected before it is covered.
In Monmouth, 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 Monmouth
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
How the job runs in Monmouth
Look and measure
We check the wall, the span you want and what the wall is carrying, and photograph anything the engineer needs to see.
Design and price
Calculations come back from the engineer and we confirm your fixed written price, line by line.
Building control
We submit the application or notice to Monmouthshire County Council under the Building Regulations as they apply in Wales, before work starts.
Fit, inspect, finish
The work is propped and the steel installed and packed tight. After inspection the opening is boxed, plastered and left clean.
Guide prices in Monmouth
As a guide, budget £1,800–£4,550 including VAT for load-bearing wall removal with steel beam in Monmouth, 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 Monmouth
In Wales, structural alterations come under the Building Regulations 2010 as they apply in Wales. Monmouthshire County Council handles building control for Monmouth. 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 Monmouth: questions
Do you also work near Monmouth?
Yes. We also cover nearby towns including Chepstow, Abergavenny, Caldicot and Pontypool.
Who approves steel beam installation in Monmouth?
Structural work in Monmouth needs a building control application to Monmouthshire County 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.
Can I stay at home while the work is done in Monmouth?
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.
How much does steel beam installation cost in Monmouth?
As a guide, budget £1,800–£4,550 including VAT for load-bearing wall removal with steel beam in Monmouth, 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 Monmouth?
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.