Steel BeamInstallers
Adjustable steel props and needles supporting a brick wall before an opening is formed

Temporary works & propping · Croydon

Temporary works & propping in Croydon

Temporary works & propping in Croydon, from free survey to completion certificate.

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

Free survey in Croydon

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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

About our temporary works & propping service in Croydon

Croydon has a mix of housing, and temporary works & propping need a slightly different approach in each. We also cover the surrounding towns and villages in London. Whatever the age of the property, the steel goes in on proper bearings with temporary support in place throughout.

The moment a load-bearing wall is cut, whatever it was holding needs another route to the ground. Temporary works provide that route. Done well, nothing above moves, ceilings stay intact and the floor below is not overloaded. Done badly, it is where structural work goes wrong.

Worth knowing before you start

  • Typical mistakes include props standing on unsupported floorboards, missing spreaders so one joist takes all the load, and props wound up too hard so the ceiling lifts and cracks. Careful setting out and gradual tightening avoid all three.
  • Propping normally goes in on the first morning and stays until the beam is carrying. For a typical opening that is a few days, and longer where padstone mortar needs time to cure before the load is transferred onto it.
  • Needle holes leave neat square gaps in the wall above the new beam. Once the props are out, these are filled with brick or block and mortar, then plastered over with the rest of the making good.
  • In older homes with lime mortar and soft bricks, the masonry above an opening can loosen once it is cut. The engineer may call for closer needle spacing or fuller support, because old walls can arch or drop in ways a modern wall does not.
  • The order of work matters. Props go in and are tightened before any masonry is cut, the opening is formed in stages, and the props stay until the permanent steel is packed tight and the bedding mortar has gained enough strength.

From survey to sign-off in Croydon

  1. Survey in Croydon

    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.

What do temporary works & propping cost in Croydon?

As a guide, budget £190–£640 including VAT for temporary works and propping in Croydon, based on published UK cost guides adjusted for London prices (+28%).

JobTypical guide rangeWhat it usually covers
Temporary works and propping£190–£640Props, spreaders, needles and sole plates for a typical opening, installed and struck
Structural calculations for a beam£320–£960Site measure or photos, beam and padstone design and calculations for building control
Party wall surveyor (agreed surveyor, per neighbour)£1,150–£2,550 per neighbourSchedule of condition and award where a neighbour dissents; serving notice alone, where the neighbour consents, costs far less (England and Wales only)
Lintel replacement£510–£1,540 per lintelPropping, removing the old lintel, new lintel set on beds and brickwork made good

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

Building rules for Croydon

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

Temporary works & propping near Croydon

Questions about temporary works & propping in Croydon

Do you also work near Croydon?

Yes. We also cover nearby towns including South Croydon, Wallington, Carshalton and Mitcham.

What happens at the survey visit in Croydon?

We look at the wall, the floor and ceiling either side and what sits above, measure the opening you want, and note cables, pipes and access for the steel. It usually takes under an hour and there is no charge.

What if props need to go on my neighbour's side of the wall?

Then their agreement is needed first. Where needles pass through a party wall, props may have to stand on the neighbour's side, and in England and Wales that work is normally covered by party wall notices served before work starts. We arrange notices through a party wall surveyor where they are required.

How long do props have to stay in after a beam is fitted?

Until the permanent steel is packed tight and able to carry the load. That includes time for the padstone and packing mortar to gain enough strength, which depends on the mix and the weather. On a typical opening, props are in for a few days before being released gradually.

Does temporary propping need building control approval?

Not on its own, but the structural work it supports usually does. Removing a load-bearing wall or inserting a beam needs building regulations approval in England, Wales and Northern Ireland, and a building warrant in Scotland. The propping arrangement normally forms part of the engineer's calculations sent with that application.

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.