Steel BeamInstallers
Steel beam half boxed in pink fire-rated plasterboard

Fire protection for steel beams · Wembley

Fire protection for steel beams in Wembley

Fire protection for steel beams in Wembley, from free survey to completion certificate.

  • Itemised written quote
  • Beam sized by a structural engineer
  • Covering Wembley and nearby

Free survey in Wembley

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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 fire protection for steel beams involves in Wembley

Fire protection for steel beams in Wembley is planned around the house, not a standard kit. We also cover the surrounding towns and villages in London. We visit, measure and check what the wall carries, then arrange calculations and building control approval before any steel is ordered.

We fit fire protection alongside new steelwork, and as a standalone job where steel was installed without it or building control has asked for more. That covers boxing with fire-rated plasterboard, intumescent coatings for steel left on show, and the records building control needs to see before signing the work off.

Worth knowing before you start

  • Building control treats fire protection as part of the structural approval, not an optional extra. If unprotected steel is found at inspection, the completion certificate is normally held back until the protection is in place and has been checked.
  • A common fault is applying intumescent paint over the wrong primer, or over one of unknown type. The products must be compatible, so where steel was primed long ago the primer is identified or the surface is cleaned back before coating.
  • Boxing a single beam usually takes around a day, plus skimming and drying. Intumescent coatings need each coat to dry before the next goes on, so they can take several days depending on the thickness required and the room temperature.
  • Boarding is fairly clean work, but coatings need a clean, dry and well-ventilated room at a suitable temperature. Dust from other trades can spoil the surface, so painting is normally scheduled once the messy work in that room is finished.
  • Fire boarding should not be cut into casually later on. Downlights, cables and pipes pushed through the boxing can weaken it, so services are planned before boarding, and any openings are sealed with suitable fire-stopping materials.

What happens, step by step

  1. Free visit

    A short visit to Wembley 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.

How much should I budget in Wembley?

As a guide, budget £190–£770 per beam including VAT for fire protection to a steel beam in Wembley, based on published UK cost guides adjusted for London prices (+28%).

JobTypical guide rangeWhat it usually covers
Fire protection to a steel beam£190–£770 per beamFire-rated board boxing or an intumescent coating system as specified
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)
Steel beam replacement£2,550–£7,050Propping, removing the failed beam, new steel on proper bearings, approval and making good
Steel column or post£640–£1,920 per columnColumn supplied and fitted with base and cap plates on a pad foundation

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

Building control and neighbours in Wembley

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 the local council's building control team 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

Fire protection for steel beams near Wembley

Questions about fire protection for steel beams in Wembley

Do you also work near Wembley?

Yes. We also cover nearby towns including Harrow, Greenford, Willesden and Northolt.

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

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.

Will building control check the fire protection on my beam?

Yes. Building control looks at fire protection as part of the structural work, normally at or before the final inspection. For boxing they may want to see the board before it is skimmed, and for coatings they may ask for the product details and thickness readings. We keep these records ready for them.

How thick does intumescent paint need to be on a steel beam?

There is no single figure. The thickness depends on the steel section, how many sides are exposed and the fire period required, and the coating manufacturer's data sets the dry film thickness for each case. The applied thickness is measured with a gauge once the coats have dried and recorded for building control.

Can I box in a steel beam with normal plasterboard?

Not where fire protection is required. Standard plasterboard is not designed to protect steel for a set period in a fire. Fire-rated plasterboard is used instead, fixed in the number of layers and with the fixings the system specifies, so the boxing performs as intended and passes when building control checks it.

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.