Steel BeamInstallers
Basement conversion with steel beams and a steel column on a concrete floor

Basement & cellar steels · Tyne and Wear

Basement & cellar steels in Tyne and Wear

Survey, engineer's design and installation of basement & cellar steels anywhere in Tyne and Wear.

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

Free survey in Tyne and Wear

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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

Planning basement & cellar steels in Tyne and Wear

Basement and cellar steels are the beams and columns that hold up the house above when walls are removed, openings are formed or new space is dug out below ground level. They carry the ground floor and walls down to new foundations, and are installed in a sequence set out by a structural engineer, alongside underpinning, excavation and waterproofing.

From the first survey visit to the completion certificate, we take care of basement & cellar steels across Tyne and Wear. We work in South Shields, Newburn and Wallsend and the surrounding villages. The engineer sizes the steel, we deal with building control, and our team fits and packs the beam before making good.

Things to plan for

  • Basements can stay damp even with waterproofing in place, so steel used below ground is protected against corrosion as the engineer specifies. That might mean an upgraded paint system or galvanising, particularly where steel sits close to external walls.
  • Underpinning deepens the existing foundations so walls can go lower, and a specialist carries it out in a strict bay-by-bay sequence. Steelwork has to fit around that sequence, which is why the engineer plans the two together from the start.
  • Basement steel frames often rely on columns because there is nowhere else to land the load. Each column sits on its own foundation or a thickened part of the slab, and its position needs agreeing early so it does not end up in the middle of a room.
  • Victorian and Edwardian cellars often have shallow brick walls, vaulted coal stores extending under the front garden or pavement, and little or no damp protection. The engineer checks whether vaults and walls can stay and what new support they need.
  • Converting a cellar into a habitable room is building work needing building regulations approval, covering structure, fire escape, ventilation and damp protection. Digging out a new basement may also need planning permission, depending on the council and the scale of the work.

From survey to sign-off in Tyne and Wear

  1. Survey in Tyne and Wear

    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.

Guide prices for basement & cellar steels in Tyne and Wear

As a guide, budget £2,300–£6,050 including VAT for basement or cellar steelwork in Tyne and Wear, based on published UK cost guides adjusted for prices in the North East (-7%).

JobTypical guide rangeWhat it usually covers
Basement or cellar steelwork£2,300–£6,050Beams and columns with pad foundations under the floor above (excavation and waterproofing extra)
Structural calculations for a beam£230–£700Site measure or photos, beam and padstone design and calculations for building control
Building control fees£230–£600Building notice or full plans fee and inspections; varies by council or approver
Fire protection to a steel beam£140–£560 per beamFire-rated board boxing or an intumescent coating system as specified

Figures include our approximate regional adjustment for prices in the North East (-7%) and are rounded. How these figures are worked out.

Approvals in Tyne and Wear

For Tyne and Wear, 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

Local questions answered

Which towns in Tyne and Wear do you cover?

We cover towns including Newcastle upon Tyne, Sunderland, South Shields and Gateshead, plus the villages and smaller towns around them.

Can you work on older or listed homes in Tyne and Wear?

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.

Do I need a party wall notice for basement work?

In England and Wales usually yes, if you are excavating near a neighbour's foundations within the distances the Party Wall etc. Act 1996 sets, or underpinning a shared wall. Notice periods apply before that work starts. We arrange a party wall surveyor to handle the notices, though we do not give legal advice.

Can I stay at home while basement steels are installed?

Many people do, particularly for cellar conversions where the dig is limited. Expect noise, dust and deliveries during the heavier stages, and some rooms above may be out of use while props are in place. For large excavations, moving out for part of the programme can be more comfortable.

How much headroom do I need for a basement conversion?

Enough for the finished room to be comfortable and for the stair to meet the building regulations headroom rules. Steel depth affects that, so the engineer may choose a shallower section or set beams within the floor above. Where headroom is too tight, lowering the floor with underpinning may be an option.

How is steel protected from damp in a basement?

Steel below ground is protected against corrosion as the engineer specifies, which may mean a heavier-duty paint system or galvanising. It is also kept on the dry side of the waterproofing where possible, and fixings through the waterproofing are detailed so they do not let water in.

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.