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Highlands and IslandsStructural alterations and knock-throughs

Structural alterations and knock-throughs in Inverness

SK Developments builds structural alterations in Inverness. We look after the design, the planning or permitted development check, building control and the build itself.

Guide price in Inverness

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

In Inverness, 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 Inverness?

In Inverness, a structural alteration typically costs £4,250–£9,250 for a typical knock-through with steel beam, including VAT at 20% (standard rate). Prices in Scotland sit near the national average for this kind of work, and the range for Inverness reflects that. Design, structural calculations and council fees are extra.

Guide prices for Inverness, 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

Your quote will depend mainly on:

  • Agreements with neighbours on shared walls
  • Span of the opening
  • What sits above the wall
  • Flush or downstand beam

A guide range is only a starting point: the guide price tool gives an instant figure for your size, and a free survey turns it into a fixed quote.

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

Whether you need planning permission depends on your house and its location 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

The work we manage on a structural alteration:

  • Temporary propping
  • Steel beam supply and installation on padstones
  • Fire protection to the steel
  • Making good, plastering and flooring repairs
  • Building control application
  • Written agreement with neighbours on shared walls

How long does it take?

Allow 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 Inverness

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

Projects in Inverness (IV2) are surveyed in person before we quote, so the price reflects your actual property.

How it works

  1. 01

    Free visit

    We look at the property, talk through what you want and measure up. There is no charge and no obligation.

  2. 02

    Design and fixed quote

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

  3. 03

    Approvals in place

    We handle planning, building control and neighbour notices before work starts.

  4. 04

    Construction and completion

    We build, put right any snags and hand over the building control certificate.

Questions about structural alterations in Inverness

What fire protection does a steel need?

Usually fire-rated plasterboard or intumescent paint, as building control requires.

How long does a knock-through take?

Usually 1 to 2 weeks on site, plus a few days for plastering to dry.

Can the beam be hidden?

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

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

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

Do you build structural alterations in Inverness?

Yes. We build structural alterations across Inverness, including postcodes IV2. Every project starts with a free home visit.

How much does a structural alteration cost in Inverness?

In Inverness, 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.

Ready to talk about a structural alteration in Inverness? Book a free home visit or get an instant guide price.

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

Call 0800 088 6248Get a guide price