Steel BeamInstallers
Loft conversion with steel beams on padstones and new floor joists

Loft conversion steels · Truro

Loft conversion steels in Truro

Loft conversion steels for homes in TR1, designed by a structural engineer.

  • Survey, design and installation in one
  • Covering TR1
  • Inspected before it is covered

Free survey in Truro

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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

Loft conversion steels in Truro: how it works

Our loft conversion steels service in Truro covers everything from the first visit to the completion paperwork. The wider Cornwall area is covered as well. Postcode districts we cover here include TR1.

We fit the steel package for loft conversions, either as part of the full project or alongside your loft builder. That means the engineer's design, building control, getting long steels into a roof space safely, bedding them on padstones and packing them before the new floor and dormer go on.

Things to plan for

  • Steels supporting a loft floor commonly need 30-minute fire resistance in a typical house. That is usually achieved with fire-rated plasterboard below and around the steel, to the specification agreed with building control.
  • Many later twentieth-century homes have trussed rafter roofs, with diagonal timbers running through the whole loft. Converting these involves more steel and new timber, because each truss is cut and its load has to be re-routed by design.
  • A rear dormer removes part of the roof slope, so the rafters above lose their support at the lower end. A ridge beam or a beam along the dormer's front edge carries them instead, designed for the dormer width and the weight of the roof.
  • Water tanks, cables, aerial leads and bathroom extract ducts often sit exactly where the steel needs to go. They are moved before the beams arrive, and old cold water tanks are frequently removed as part of the wider loft project.
  • Traditional cut roofs rely on purlins and struts running down to internal walls. A steel beam can take over that job so the struts come out, freeing up floor and headroom, but the change has to be designed and propped carefully.

How the job runs in Truro

  1. Free visit

    A short visit to Truro to see the job, agree what you want and check the bearings, floors and services that affect the design.

  2. Calculations

    The engineer's calculations and a simple drawing are prepared for your opening and shared with you before anything is ordered.

  3. Building control

    We submit a building notice or full plans application to Cornwall Council, so approval is in place before the wall is touched.

  4. Steel in, made good

    On site we prop, open up, fit and pack the steel, then fire protect, box in and plaster once the inspection is done.

Guide prices for loft conversion steels in Truro

As a guide, budget £2,600–£6,200 including VAT for loft conversion steels in Truro, based on published UK cost guides adjusted for prices in the South West (+3%).

JobTypical guide rangeWhat it usually covers
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
Steel column or post£520–£1,540 per columnColumn supplied and fitted with base and cap plates on a pad foundation
Fire protection to a steel beam£150–£620 per beamFire-rated board boxing or an intumescent coating system as specified

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

Approvals in Truro

In England, taking out a load-bearing wall or putting in a beam is building work under the Building Regulations 2010. It needs approval from building control, either Cornwall Council or a registered building control approver, through a full plans application or a building notice. Part A covers the structure and Part B covers fire safety, which is why steel in homes is usually fire protected.

If the beam bears into a wall you share with a neighbour, the Party Wall etc. Act 1996 applies, and a party structure notice must be served at least two months before that work starts. We arrange this through a party wall surveyor.

Building rules in England

Loft conversion steels near Truro

Local questions answered

Can I stay at home while the work is done in Truro?

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.

Do I need a party wall notice for a loft conversion?

Very often in England and Wales, because loft steels in terraced and semi-detached houses usually bear into the party wall. That is notifiable under the Party Wall etc. Act 1996, with notice served at least two months before the work starts. We organise this through a party wall surveyor as part of the job.

How long does it take to install loft steels?

The main steels for a typical loft conversion usually go in over two to five working days. That covers cutting pockets, bedding padstones, getting the steel in and packing it. The timing depends heavily on access and how many beams the design calls for.

Do I need building regulations for loft conversion steels?

Yes. Loft conversions are building work, and the steels form part of the structural design checked by building control in England, Wales and Northern Ireland. In Scotland a building warrant must be granted before work begins. The inspector checks the steel bearings before they are covered up.

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.