COVID-19 (Coronavirus) Update:

For some of our projects we recommend site visits. Based on the latest Government advice we consider these can still be undertaken as they are an essential part of our service. However, if you have any concerns about a site visit, please discuss this with us as we can find alternatives to allow our structural design to be carried out.

Alterations and Extensions

We have extensive experience in the structural design of alterations, refurbishments and extensions. This may range from a single beam to allow removal of load-bearing wall, through to a major remodelling of an existing building.

We are also experienced in the design of basements.

How we can help:


Our involvement will depend on the level of complexity, but typically we would:

  • Make a site visit if necessary

  • Undertake the structural design of the elements required - considering both the strength and stiffness requirements

  • Check the lateral stability of the structure

  • Prepare a set of drawings and specifications showing the structural requirements

  • Design any steelwork connections required – we do not charge extra for this service

  • Prepare any reinforcement detailing drawings needed – we will include this in our fixed fees

  • Prepare a set of calculations that should be submitted to building control or an approved inspector

We are committed to deliver a high quality and bespoke service for all of our clients no matter the size or complexity of the project.

If you have a building alteration or extension which requires a local structural engineer, contact our team today.

Do you have a building alteration or extension that requires a local structural engineer?

What our clients say
"I recommend Modulus every time a structural engineer is needed as we are long established roofing contractors."


- Darryl Moran, Moran Roofing

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Head Office

Modulus Structural Engineering Ltd

Devonshire House

Aviary Court



RG24 8PE

Tel: 01256 768588

London Office

Meadlake Place

Thorpe Lea Road


TW20 8HE

Tel: 020 7112 8840

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Head Office: 01256 768588

London Office: 020 7112 8840

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