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LeicestershireStructural alterations and knock-throughs

Structural alterations and knock-throughs in Wigston Magna

SK Developments builds structural alterations in Wigston Magna, about 4 miles south-east of Leicester. We look after the design, the planning or permitted development check, building control and the build itself.

Guide price in Wigston Magna

£4,250–£9,000 for a typical knock-through with steel beam

In Wigston Magna, a structural alteration typically costs £4,250–£9,000 for a typical knock-through with steel beam, including VAT at 20% (standard rate).

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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 Wigston Magna?

In Wigston Magna, a structural alteration typically costs £4,250–£9,000 for a typical knock-through with steel beam, including VAT at 20% (standard rate). That range is adjusted for the East Midlands, where domestic building work typically costs around 5% below the national average. Design, structural calculations and council fees are extra.

Guide prices for Wigston Magna, including VAT at 20% (standard rate)
Size or typeGuide range
A typical knock-through with steel beam£4,250–£9,000
Higher specification£9,000–£11,000

The biggest cost drivers are:

  • Span of the opening
  • Floor and ceiling repairs
  • Flush or downstand beam
  • Party wall involvement

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 Wigston Magna?

Approvals for a structural alteration in Wigston Magna follow the rules for England. In England removing a load-bearing wall does not need planning permission but does need building regulations approval with an engineer’s calculations. If the beam bears on a party wall, a party wall notice must be served.

Building regulations approval comes from the council’s building control service or a registered building control approver. The work is inspected at key stages, such as foundations, drainage and insulation, and a completion certificate is issued at the end.

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:

  • Fire protection to the steel
  • Steel beam supply and installation on padstones
  • Making good, plastering and flooring repairs
  • Temporary propping
  • Party wall notices where needed
  • Building control application

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 Wigston Magna

The East Midlands has a mix of red-brick terraces, inter-war semis and newer estates, so rear extensions and garage conversions are common projects.

From LE2 outwards, we take on projects throughout Wigston Magna and the surrounding parts of Leicestershire.

How it works

  1. 01

    Visit and measured survey

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

  2. 02

    Drawings and written quote

    We prepare the design and give you a written, itemised quote with inclusions and exclusions.

  3. 03

    Approvals in place

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

  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 Wigston Magna

What fire protection does a steel need?

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

Do I need a party wall notice?

In England and Wales, if the beam sits in a party wall, yes.

Can the beam be hidden?

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

How much does a structural alteration cost in Wigston Magna?

In Wigston Magna, a structural alteration typically costs £4,250–£9,000 for a typical knock-through with steel beam, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.

How long does a structural alteration take in Wigston Magna?

Typically 1 to 2 weeks on site for a typical knock-through. Design and approvals beforehand usually take 6 to 12 weeks.

Start with a guide price, then book a free survey for a fixed quote in Wigston Magna.

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

Call 0800 088 6248Get a guide price