Steel BeamInstallers
Grey steel goalpost frame installed where a rear wall has been removed

Steel goalpost frames · Northampton

Steel goalpost frames in Northampton

Steel goalpost frames for homes in NN1, NN2, NN3, designed by a structural engineer.

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

Free survey in Northampton

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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

Steel goalpost frames in Northampton: how it works

Need steel goalpost frames in Northampton? Our coverage runs across Northamptonshire, so nearby villages are included too. We survey the property, arrange the engineer's design, deal with local building control, fit the steel and make good, all under one quote for NN1, NN2, NN3, NN4 and NN5 addresses.

When a rear wall is opened almost corner to corner, or the brickwork either side is too thin, cracked or broken up by openings to take a concentrated load, a beam on padstones is not enough. A goalpost frame brings its own supports: two columns carry the beam's ends straight down to new foundations, so the walls around the opening are not relied on.

Worth knowing before you start

  • Each column usually needs its own concrete pad foundation, because a column delivers a heavy point load that an ordinary floor slab or old strip footing may not take. The engineer sets the pad size and depth from the load and the ground conditions found.
  • Digging the column pads means breaking through the floor, which is noisier and messier than fitting a beam alone. Floor coverings near the column positions need lifting, and the spoil from the excavations is bagged and removed from site.
  • Stability is part of the design, not just strength. A frame standing in a wide opening can sway sideways if the joints are too flexible, so the engineer decides whether the connections must be moment-resisting or whether the frame is tied back to the surrounding structure.
  • Column pads can clash with drains, gas pipes and underfloor heating runs below the floor. These are located before digging, and if a drain runs where a pad needs to go, the engineer may move the column or redesign the pad.
  • Keep the engineer's calculations, the frame drawings and the building control completion certificate together. They show a future buyer's surveyor how the opening is supported and save questions about the columns when the house is sold.

How the job runs in Northampton

  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.

How much should I budget in Northampton?

As a guide, budget £1,950–£5,900 including VAT for steel goalpost frame in Northampton, based on published UK cost guides adjusted for prices in the East Midlands (-2%).

JobTypical guide rangeWhat it usually covers
Steel goalpost frame£1,950–£5,900Two posts and a beam bolted as a frame, pad foundations, base plates and fitting
Side return extension steelwork£3,450–£8,350Beams and posts along the old side wall line, propping and approvals (extension build extra)
Opening into a rear extension£2,450–£6,850Original rear wall removed with a beam or goalpost, approvals and propping, coordinated with the extension build
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)

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

Building rules for Northampton

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

Steel goalpost frames near Northampton

Steel goalpost frames in Northampton: your questions

Can you work on older or listed homes in Northampton?

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.

How much do steel goalpost frames cost in Northampton?

As a guide, budget £1,950–£5,900 including VAT for steel goalpost frame in Northampton, based on published UK cost guides adjusted for prices in the East Midlands (-2%). The exact figure depends on the span, what the wall carries, access and the finish, and is fixed in writing once the scope is agreed.

Is a goalpost frame more expensive than a beam?

Generally yes, because there is more steel, more fabrication and new foundations to dig and pour. Against that, a goalpost can avoid rebuilding weak piers or strengthening walls so they can take a beam. Our itemised written quote shows the frame, pads, propping and making good separately so you can see where the cost sits.

How long does it take to install a steel goalpost?

Allow around one to two weeks on site for a typical job. Breaking out and digging the pads, the foundation inspection, pouring concrete and letting it gain strength take up much of that time. Erecting and bolting the frame itself is often done in a day, followed by inspection and boxing in.

Can a goalpost column go next to my neighbour's wall?

It can, but in England and Wales it may bring in the Party Wall etc. Act 1996. Digging a pad near a neighbour's building to below the level of its foundations, or fixing into a shared wall, can be notifiable. We arrange notices through a party wall surveyor where needed. There is no equivalent Act in Scotland or Northern Ireland.

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.