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

Loft conversion steels · Battersea

Loft conversion steels in Battersea

Loft conversion steels in Battersea, from free survey to completion certificate.

  • Price fixed in writing once scope is agreed
  • Building control arranged
  • Temporary works and making good included

Free survey in Battersea

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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

What loft conversion steels involve in Battersea

Planning loft conversion steels in Battersea? Our team covers SW3, SW4, SW5, SW7 and SW8 and the streets around them. We also cover the surrounding towns and villages in London. You get one written quote for the calculations, approvals, propping, steel and making good.

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.

Worth knowing before you start

  • Loft steels usually bear on the gable wall in a semi-detached house or on the party wall in a terrace. The engineer checks that the wall below can take the point load and specifies padstones to spread it, sometimes with a steel post down to lower floors.
  • 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.
  • Headroom in the finished loft depends partly on where the floor steels sit. Setting them low, between the existing ceiling joists, keeps more height upstairs, and the engineer and loft designer agree the levels together.
  • 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.
  • Ceiling joists in most houses are too shallow to carry people, furniture and a bathroom. Rather than loading them, steel beams span between the walls and new, deeper floor joists hang from them, sitting just above the old ceiling.

From survey to sign-off in Battersea

  1. Free visit

    A short visit to Battersea 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 the local council's building control team, 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.

What do loft conversion steels cost in Battersea?

As a guide, budget £3,200–£7,700 including VAT for loft conversion steels in Battersea, based on published UK cost guides adjusted for London prices (+28%).

JobTypical guide rangeWhat it usually covers
Loft conversion steels£3,200–£7,700Supply and fit of floor and ridge steels on padstones, including lifting into the roof space
Steel column or post£640–£1,920 per columnColumn supplied and fitted with base and cap plates on a pad foundation
RSJ supply and fit (single beam)£1,000–£3,200 per beamBeam supplied, delivered, lifted and packed on padstones, with propping (calculations and approval priced separately)
Fire protection to a steel beam£190–£770 per beamFire-rated board boxing or an intumescent coating system as specified

Figures include our approximate regional adjustment for London prices (+28%) and are rounded. How these figures are worked out.

Building control and neighbours in Battersea

Structural openings in English homes need building regulations approval before work starts. The local council's building control team can deal with it, or you can use a registered building control approver. Either way the steel is inspected before it is covered, and a completion certificate is issued at the end. Keep it safe for when you sell.

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

Loft conversion steels near Battersea

Questions about loft conversion steels in Battersea

Do you cover Battersea for loft conversion steels?

Yes. We carry out loft conversion steels in Battersea and the SW3, SW4, SW5, SW7 and SW8 postcode districts. Book a free survey visit and we will check the wall, arrange the engineer's calculations and send an itemised written quote.

Do you also work near Battersea?

Yes. We also cover nearby towns including Chelsea, Pimlico, Westminster and Fulham.

Do loft conversion steels need fire protection?

Usually, yes. Steel loses strength in a fire, and the beams carrying the new floor are elements of structure. In a typical house they commonly need 30-minute fire resistance, often provided by fire-rated plasterboard around and below the steel, as agreed with building control.

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.

Where do loft conversion steels sit?

Usually between the gable walls or party walls, bearing on padstones bedded into pockets cut in the brickwork. Floor beams sit low, close to the existing ceiling, while ridge or dormer beams sit higher up to support the roof. The engineer sets the exact positions and levels.

Who approves loft conversion steels in Battersea?

Structural work in Battersea 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.