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

Loft conversion steels · Corby

Loft conversion steels in Corby

Steelwork, approvals and making good for loft conversion steels in Corby and nearby.

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

Free survey in Corby

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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

Planning loft conversion steels in Corby

Corby has a mix of housing, and loft conversion steels need a slightly different approach in each. Our coverage runs across Northamptonshire, so nearby villages are included too. Whatever the age of the property, the steel goes in on proper bearings with temporary support in place throughout.

The joists in most lofts were only ever meant to hold up a plaster ceiling, and the roof is often propped on struts and purlins that get in the way of a room. Steel beams solve both problems: they carry a new floor across the house and take over the roof support so the struts can come out.

Key points for your project

  • Many loft conversions in houses in England fall within permitted development. Roof extensions facing a road, work in conservation areas, listed buildings and flats generally need planning permission or another form of consent.
  • 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.
  • Cutting pockets into a party wall for steel bearings is notifiable work in England and Wales under the Party Wall etc. Act 1996. A party structure notice must be served at least two months before that work starts, so it is worth raising early in the planning.
  • In older terraces the party wall at loft level can be thin, built in soft brick, or contain old chimney flues. The engineer may avoid bearing over a flue, ask for a section of wall to be rebuilt, or use a post down to firmer support.
  • Building regulations also cover escape from the new room in a fire. In a typical house that often means a protected stairway with fire doors from the loft down to an exit, so the steel design sits within a wider fire safety approval.

How the job runs in Corby

  1. Survey in Corby

    We visit, look at the wall and what sits above it, measure the opening and note services, access and how the steel can be brought in.

  2. Engineer's design

    A structural engineer sizes the beam, padstones and any posts, and sets out the temporary support needed while the wall is out.

  3. Building control

    We submit a building notice or full plans application to the local council's building control team, so approval is in place before the wall is touched.

  4. Install and sign-off

    Props go in, the opening is formed, the steel is set and packed, building control inspects it, and we make good.

Guide prices for loft conversion steels in Corby

As a guide, budget £2,450–£5,900 including VAT for loft conversion steels in Corby, based on published UK cost guides adjusted for prices in the East Midlands (-2%).

JobTypical guide rangeWhat it usually covers
Loft conversion steels£2,450–£5,900Supply and fit of floor and ridge steels on padstones, including lifting into the roof space
Fire protection to a steel beam£150–£590 per beamFire-rated board boxing or an intumescent coating system as specified
RSJ supply and fit (single beam)£780–£2,450 per beamBeam supplied, delivered, lifted and packed on padstones, with propping (calculations and approval priced separately)
Structural calculations for a beam£240–£740Site measure or photos, beam and padstone design and calculations for building control

Figures include our approximate regional adjustment for prices in the East Midlands (-2%) and are rounded. How these figures are worked out.

Building control and neighbours in Corby

For Corby, 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.

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 Corby

Questions about loft conversion steels in Corby

Can you work on older or listed homes in Corby?

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.

Do you cover Corby for loft conversion steels?

Yes. We carry out loft conversion steels in Corby and the NN17 and NN18 postcode districts. Book a free survey visit and we will check the wall, arrange the engineer's calculations and send an itemised written quote.

Can my loft be converted if it has trussed rafters?

Often it can, but it is a bigger structural job. Trussed rafters have diagonal webs right through the loft, and every truss that is cut needs its load picked up by new steel and timber. The engineer designs that, and the roof is propped carefully throughout.

How do you get steel beams into a loft?

It depends on access. Beams are often passed in through an opening made in the roof or a gable window, or brought up in shorter sections and bolted together in the loft where the engineer's design allows. For long or heavy steels a hoist or crane may be used, planned in advance.

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.

Do you also work near Corby?

Yes. We also cover nearby towns including Uppingham, Kettering, Market Harborough and Oakham.

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.