Steel BeamInstallers
Steel column with a bolted base plate on a concrete pad supporting a beam

Steel columns & posts · Bexley

Steel columns & posts in Bexley

Steel columns & posts for homes in DA5, DA6, DA7, designed by a structural engineer.

  • Survey, design and installation in one
  • Covering DA5, DA6, DA7
  • Inspected before it is covered

Free survey in Bexley

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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 steel columns & posts service in Bexley

Planning steel columns & posts in Bexley? Our team covers DA5, DA6, DA7, DA8 and DA14 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.

Sometimes the right support for a beam is not a wall at all. A long span can be broken in two with a slim post in the middle, a beam can land on a column where the masonry below is weak, or the corner of an L-shaped opening can be held up by a single post instead of a brick pier.

Things to plan for

  • Older properties sometimes have cast iron columns, timber posts or brick piers doing this job, especially in cellars and former shops. Their condition and capacity are often unknown, so the engineer assesses whether they can stay or need replacing with new steel.
  • Placing a post well can make an open-plan room work better. It can mark the edge of a kitchen island, frame a dining area or line up with a worktop end, so it reads as part of the design rather than an obstruction.
  • Exposed columns are commonly protected with intumescent paint applied to the thickness the specification calls for, which keeps a slim profile. Boxed columns are clad in fire-rated plasterboard and finished with corner beads, skim and a skirting to match the room.
  • Columns on upper floors cannot simply stand on joists. The load has to be traced down through the building to the ground, which can mean a column directly below, a beam to collect it, or a redesign of the layout.
  • The base plate is welded to the foot of the column and fixed to the pad with holding-down bolts. A cap plate at the top bolts to the beam above, so the two act together and the beam cannot slide off its support.

Four stages, one team

  1. Look and measure

    We check the wall, the span you want and what the wall is carrying, and photograph anything the engineer needs to see.

  2. Design and price

    Calculations come back from the engineer and we confirm your fixed written price, line by line.

  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. Fit, inspect, finish

    The work is propped and the steel installed and packed tight. After inspection the opening is boxed, plastered and left clean.

What do steel columns & posts cost in Bexley?

As a guide, budget £640–£1,920 per column including VAT for steel column or post in Bexley, based on published UK cost guides adjusted for London prices (+28%).

JobTypical guide rangeWhat it usually covers
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)
Steel goalpost frame£2,550–£7,700Two posts and a beam bolted as a frame, pad foundations, base plates and fitting
Kitchen-diner knock-through£3,200–£7,700Internal structural wall between kitchen and dining room, steel beam, approvals and making good (kitchen fitting extra)

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

Building rules for Bexley

For Bexley, 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

Steel columns & posts near Bexley

Questions about steel columns & posts in Bexley

Do you cover Bexley for steel columns & posts?

Yes. We carry out steel columns & posts in Bexley and the DA5, DA6, DA7, DA8 and DA14 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 I stay at home while the work is done in Bexley?

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 building control for a steel column?

Yes. A new structural column is building work under the building regulations in England and Wales, and needs a building warrant first in Scotland and a building control application in Northern Ireland. Inspectors normally check the foundation excavation and the fixed column before it is covered. We deal with the application, notices and inspection visits.

Can a steel column be left exposed?

Yes, many people leave a column on show, painted to suit the room. In homes exposed steel commonly needs fire protection, often intumescent paint applied to the specified thickness as part of a compatible paint system. Building control checks the protection meets what was specified. Boxing in with fire-rated plasterboard is the alternative where a hidden column is preferred.

Will a column interfere with underfloor heating?

It can, because the pad has to be dug through the floor where pipes may run. We trace heating loops, drains and cables before cutting and, where possible, move the column position slightly to miss them. If a loop has to be cut, it is repaired and pressure tested by a heating engineer before the floor is reinstated.

Do you also work near Bexley?

Yes. We also cover nearby towns including Welling, Dartford, Swanley and Eltham.

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.