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Greater ManchesterStructural alterations and knock-throughs

Structural alterations and knock-throughs in Salford

Our structural alteration service covers Salford and the surrounding parts of Greater Manchester. Every project starts with a free visit and ends with a completion certificate.

Guide price in Salford

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

In Salford, 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 Salford?

In Salford, a structural alteration typically costs £4,250–£9,000 for a typical knock-through with steel beam, including VAT at 20% (standard rate). Prices across the North West are typically 6% below the UK average for this kind of work, which is reflected in the range for Salford. Design, structural calculations and council fees are extra.

Guide prices for Salford, 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

What moves the price most:

  • Span of the opening
  • Party wall involvement
  • Floor and ceiling repairs
  • What sits above the wall

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 Salford?

Approvals for a structural alteration in Salford 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

Handled as part of most structural alterations:

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

How long does it take?

Expect 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 Salford

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

If your home is in Salford or close by in Eccles, Manchester and Swinton, a free home visit is the first step.

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

    Permissions sorted

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

  4. 04

    Construction and completion

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

Questions about structural alterations in Salford

How much does a structural alteration cost in Salford?

In Salford, 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.

Do you build structural alterations in Salford?

Yes. We build structural alterations across Salford, including postcodes M5, M6 and M50. Every project starts with a free home visit.

Can the beam be hidden?

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

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.

Ready to talk about a structural alteration in Salford? 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