Steel BeamInstallers
Rear extension under construction with a steel beam over the opening into the house

Areas · England

Steel beam installers in Dorset

Load-bearing walls, knock-throughs, openings and steelwork across Dorset, with calculations and approvals arranged.

  • Free survey visit in Dorset
  • Engineer's calculations arranged
  • Building control handled for you

Free survey in Dorset

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  • 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 Dorset

We fit steel beams and RSJs across Dorset: 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 Poole, Weymouth and Christchurch and the villages around them. Every job includes calculations from a structural engineer and the right approval for England.

Approval in Dorset is through council building control or a registered building control approver, and party wall notices apply where steel bears into a shared wall.

Guide prices in Dorset

As a guide, budget £2,050–£5,150 including VAT for load-bearing wall removal with steel beam in Dorset, based on published UK cost guides adjusted for prices in the South West (+3%).

JobTypical guide rangeWhat it usually covers
Load-bearing wall removal with steel beam£2,050–£5,150Typical internal wall up to about 4 m: calculations, building control, propping, steel, padstones, fitting, fire protection and making good
Chimney breast removal (ground floor)£1,550–£3,100Ground-floor breast removed, steel to support the breast above, building control and making good
Rear wall opening for bi-fold or sliding doors£2,600–£7,200External wall opened up to about 5 m with steel, propping, cavity tray and making good (doors supplied separately)
Loft conversion steels£2,600–£6,200Supply and fit of floor and ridge steels on padstones, including lifting into the roof space
Structural calculations for a beam£260–£770Site measure or photos, beam and padstone design and calculations for building control

Figures include our approximate regional adjustment for prices in the South West (+3%) and are rounded. How these figures are worked out.

Building rules in Dorset

For Dorset, building control is provided by the local council's building control team, or by a registered building control approver if preferred. We send them the engineer's calculations with a building notice or full plans application and book the inspections. Work done without approval can cause problems at sale and is far dearer to put right later.

Terraced and semi-detached homes often need party wall notices, because cutting into a shared wall to take a beam end is notifiable under the Party Wall etc. Act 1996. Allow at least two months for the notice period unless your neighbour agrees sooner.

Building rules in England

Steel beams in Dorset: questions

Can you work on older or listed homes in Dorset?

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 much does steel beam installation cost in Dorset?

As a guide, budget £2,050–£5,150 including VAT for load-bearing wall removal with steel beam in Dorset, based on published UK cost guides adjusted for prices in the South West (+3%). 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 I stay at home while the work is done in Dorset?

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.

Which towns in Dorset do you cover?

We cover towns including Bournemouth, Poole, Weymouth and Christchurch, plus the villages and smaller towns around them.

Who approves steel beam installation in Dorset?

Structural work in Dorset needs a building notice or full plans application to the local council's building control team or a registered building control approver. We prepare and submit it with the structural engineer's calculations and arrange the inspections, so the completion paperwork follows the job.

Planning to take a wall out?

Book a free survey visit. You get an itemised written quote covering calculations, building control, steel and making good.