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ScotlandStructural alterations and knock-throughs

Structural alterations and knock-throughs in Glasgow

SK Developments designs and builds structural alterations across Glasgow. One contract covers the drawings, approvals and the build.

Guide price in Glasgow

£4,250–£9,250 for a typical knock-through with steel beam

In Glasgow, a structural alteration typically costs £4,250–£9,250 for a typical knock-through with steel beam, including VAT at 20% (standard rate).

Book a free home visit

Tell us about your project. We reply to arrange a visit and a fixed quote.

Free home visit and measured survey
Fixed price for the agreed specification
Drawings, approvals and build in one contract
Building control sign-off arranged
England, Wales, Scotland and Northern Ireland

What is a structural alteration?

Steel beam installed across a wide opening with props in place during a knock-through

A structural alteration changes how a house carries its loads, most often by removing a load-bearing wall and replacing it with a steel beam. It is how kitchens and dining rooms become open-plan, and how extensions are joined to the original house.

How much does a structural alteration cost in Glasgow?

In Glasgow, a structural alteration typically costs £4,250–£9,250 for a typical knock-through with steel beam, including VAT at 20% (standard rate). Building costs in Scotland are close to the UK average, so the figures for Glasgow are close to our national guide. Design, structural calculations and council fees are extra.

Guide prices for Glasgow, including VAT at 20% (standard rate)
Size or typeGuide range
A typical knock-through with steel beam£4,250–£9,250
Higher specification£9,250–£11,500

The main things that change the cost:

  • Agreements with neighbours on shared walls
  • What sits above the wall
  • Moving radiators, sockets and pipes
  • Floor and ceiling repairs

For a figure based on your own measurements, try the guide price tool, then book a free home visit for a fixed quote.

Do you need planning permission for a structural alteration in Glasgow?

The approval route for Glasgow is set by planning law in Scotland. In Scotland removing a load-bearing wall needs a building warrant before work starts.

In Scotland a building warrant is needed before work starts on most extensions, loft conversions and conversions. It is issued by the council’s building standards service. When the work is finished, a completion certificate is submitted and accepted by the council after inspection.

If the answer is not clear-cut, we can apply for formal confirmation before you commit to the build.

What we handle

From survey to sign-off, the job normally involves:

  • Structural engineer’s calculations and drawings
  • Making good, plastering and flooring repairs
  • Steel beam supply and installation on padstones
  • Fire protection to the steel
  • Building control sign-off
  • Temporary propping

How long does it take?

Build time is typically 1 to 2 weeks on site for a typical knock-through. Allow time beforehand for drawings and approvals, usually 6 to 12 weeks.

Building in Glasgow

In Scotland, bungalows and one-and-a-half-storey homes are common, so dormer conversions are a popular way to add bedrooms.

We cover the whole of Glasgow.

How it works

  1. 01

    Visit and measured survey

    A free visit to understand the project, check access and take measurements.

  2. 02

    Design and fixed quote

    Drawings, structural calculations and an itemised, fixed price for the agreed specification.

  3. 03

    Permissions sorted

    Applications, building control and neighbour arrangements, all before the start date.

  4. 04

    Build and handover

    Work follows the agreed programme, with inspections along the way and a completion certificate at the end.

Questions about structural alterations in Glasgow

Can the beam be hidden?

Often, by setting it within the ceiling depth. It depends on the joists and span.

Do I need building regulations approval?

Yes. Removing a load-bearing wall is building work that needs approval, with calculations for the beam.

How much does a structural alteration cost in Glasgow?

In Glasgow, a structural alteration typically costs £4,250–£9,250 for a typical knock-through with steel beam, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.

Do I need planning permission for a structural alteration in Glasgow?

In Scotland removing a load-bearing wall needs a building warrant before work starts.

How do I know if a wall is load-bearing?

Only a survey can confirm it. Walls that carry floor joists, roof loads or walls above are load-bearing. We check on site and the engineer confirms.

Who approves a structural alteration in Glasgow?

Planning matters in Glasgow go to the council covering your address, and the work needs a building warrant. We prepare and submit the applications for you.

Get a free, no-obligation home visit for your structural alteration in Glasgow.

Call 0800 088 6248 or get an instant guide price online.

Call 0800 088 6248Get a guide price