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    • Home
    • Services
      • Garage Demolition
      • Structural Alterations
      • Internal Strip-Out
      • Site Clearance
      • Concrete Removal
    • Projects
      • Cobham Garage Demolition
      • Croydon Opening Up Works
      • Esher House Demolition
      • Oxshott Strip Out
      • Walton Upon Thames Demo
      • Pulborough Excavation
      • Garage Demo Kingston
      • Barnes House Renovation
      • Islington townhouse reno
      • Mayfair Mews Strip Out
      • Sunbury Internal Stripout
      • Chertsey Bathroom Rip Out
    • Get a Quote
    • FAQ
Get A Quote

  • Home
  • Services
    • Garage Demolition
    • Structural Alterations
    • Internal Strip-Out
    • Site Clearance
    • Concrete Removal
  • Projects
    • Cobham Garage Demolition
    • Croydon Opening Up Works
    • Esher House Demolition
    • Oxshott Strip Out
    • Walton Upon Thames Demo
    • Pulborough Excavation
    • Garage Demo Kingston
    • Barnes House Renovation
    • Islington townhouse reno
    • Mayfair Mews Strip Out
    • Sunbury Internal Stripout
    • Chertsey Bathroom Rip Out
  • Get a Quote
  • FAQ
Get A Quote

Structural Alterations & Load-Bearing Wall Removal

Construction site with steel beams and scaffolding.

 Structural openings, wall removals and steel installation for homeowners and builders across Surrey and South West London, completed in line with structural engineer drawings. 


 We manage the demolition and structural preparation so your builder can move directly into the next stage of the renovation. 

Get a Structural Quote

Open Up Your Home Without Holding Up the Build

Work From Engineer Drawings

Work From Engineer Drawings

Work From Engineer Drawings

 Structural openings and steelwork completed from the approved design and calculations. 

Temporary Support Managed

Work From Engineer Drawings

Work From Engineer Drawings

 The structure is supported appropriately before walls or masonry are removed 

Steel Installation Available

Steel Installation Available

Steel Installation Available

 We can install the specified steelwork as part of the same programme. 

Builder-Ready Handover

Steel Installation Available

Steel Installation Available

 The opening is left secure and ready for the next stage of construction or making good. 

What Structural Alterations Can We Help With?

 Structural alterations allow you to change how a property works, whether that means creating an open-plan kitchen, enlarging a living space, preparing for an extension or changing the layout of an upper floor.


The work must be carefully planned and completed in the correct sequence. Before quoting, we review the structural engineer’s drawings, access, proposed steelwork and the surrounding areas that need protecting.

Load-bearing wall removal

Kitchen and living-room knock-throughs

Rear wall removal for extensions

Structural openings

Chimney breast removal

RSJ and steel beam installation

RSJ and steel beam installation

Internal strip-out before structural works

Loft-conversion steelwork

Localised masonry repairs where specified

What Is Included in Structural Alteration Work?

Drawing Review

Temporary Support

Site Preparation

 We review the engineer’s information, proposed steelwork and surrounding structure before agreeing the scope. 

Site Preparation

Temporary Support

Site Preparation

 Working areas are protected and any agreed strip-out is completed before the structural opening begins. 

Temporary Support

Temporary Support

Controlled Wall Removal

 Appropriate temporary support is installed before structural masonry or walls are removed. 

Controlled Wall Removal

Controlled Wall Removal

Controlled Wall Removal

 The opening is formed methodically to protect retained sections of the property. 

Steel Installation

Controlled Wall Removal

Steel Installation

  The specified steelwork is installed and positioned in accordance with the engineer’s design. 

Clean Handover

Controlled Wall Removal

Steel Installation

 The work area is left safe, tidy and ready for the next phase. 

Structural Alterations FAQs

Please reach us at info@thedemosquad.co.uk if you cannot find an answer to your question.

 Most residential structural alteration projects fall between £2,000 and £12,000, depending on the size of the opening, steel requirements, temporary support, access and associated strip-out. A simple single opening is generally at the lower end, while rear-wall removals and multiple-steel packages cost more. 


 Yes, where a load-bearing wall or other structural element is being altered. The structural engineer provides the calculations and drawings showing how the building will be supported. We use that information to prepare the quotation and complete the work. 


 Where required, we can introduce you to a structural engineer, subject to their location and availability. Their design and professional fees remain separate from our demolition and installation quotation. 


 Yes. We can install the structural steel specified by the engineer as part of the same programme as the wall removal. The quotation will confirm whether steel supply, installation or both are included. 


 Yes. We regularly complete rear-wall removal and steel installation in preparation for extensions. This normally requires careful temporary support and coordination with the builder, engineer and building control. 


 Yes, subject to the structural engineer’s design and any party-wall or planning requirements. Chimney breast removal may require support to the remaining masonry above and careful consideration of adjoining properties. 


 Our core service is demolition, structural preparation and steel installation. Limited making safe may be included, but plastering, carpentry and decorative finishing are normally completed by the builder unless specifically included in our quotation. 


 Building-control responsibility should be agreed before work starts. We can coordinate access for inspections, but the homeowner or main contractor normally manages the application and approval process unless stated otherwise. 


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