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Greater ManchesterStructural alterations and knock-throughs

Structural alterations and knock-throughs in Swinton

SK Developments designs, gets approval for and builds structural alterations in Swinton and across Greater Manchester, with one contract from the first drawing to the building control sign-off.

Guide price in Swinton

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

In Swinton, 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 Swinton?

In Swinton, a structural alteration typically costs £4,250–£9,000 for a typical knock-through with steel beam, including VAT at 20% (standard rate). Building costs in the North West run about 6% below the UK average, and the figures for Swinton are adjusted to reflect that. Design, structural calculations and council fees are extra.

Guide prices for Swinton, 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:

  • Flush or downstand beam
  • Span of the opening
  • Floor and ceiling repairs
  • Moving radiators, sockets and pipes

Use the guide price tool to see how size and specification change the figure, then ask for a written, itemised quote.

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

Approvals for a structural alteration in Swinton 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.

At the survey we check your house’s planning history and any restrictions, and tell you which route applies.

What we handle

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

  • Party wall notices where needed
  • Steel beam supply and installation on padstones
  • Making good, plastering and flooring repairs
  • Structural engineer’s calculations and drawings
  • Fire protection to the steel
  • Building control application

How long does it take?

Expect 1 to 2 weeks on site for a typical knock-through. Before that, surveys, drawings and approvals usually take 6 to 12 weeks, longer if the council asks for changes.

Building in Swinton

The North West has many brick terraces and inter-war semis, where kitchen extensions and dormer loft conversions add space without moving.

Our Swinton coverage includes postcode districts M27, and we also work in nearby places such as Eccles, Walkden and Salford.

How it works

  1. 01

    Survey and brief

    We visit, discuss your ideas and budget, and survey the property or site at no cost.

  2. 02

    Design and fixed quote

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

  3. 03

    Approvals

    Planning or permitted development confirmation, building regulations and any party wall matters.

  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 Swinton

How much does a structural alteration cost in Swinton?

In Swinton, 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.

What fire protection does a steel need?

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

Who approves a structural alteration in Swinton?

Planning matters in Swinton go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.

How long does a knock-through take?

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

Do I need a party wall notice?

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

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

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

Call 0800 088 6248Get a guide price