Stress Free Structural Engineering Calculations

PorthouseDean is trusted by architects, homeowners, and builders around the country to provide high quality, accurate structural engineering drawings and calculations. All the work we produce is done to the highest standard, to fit your timeline.

Add Value to Your Project

Specialising in providing structural engineering calculations for building regulation applications for low-rise dwellings. We offer an efficient service covering loft conversions, extensions, new-builds, and more.

A highly trusted structural engineer, at PorthouseDean we provide peace of mind through the consistent high-quality of our work. While the standard of our service is paramount, we know that a huge part of our success comes from the reliable and personal service that we offer to each and every one of the 1000+ clients we work with yearly.

Structural Engineering Done Well

Browse a selection of testimonials from some of our former clients.

Martin Shayes
Martin Shayes
This is the first time that I have used PorthouseDean and I have been extremely happy with the service. As well as the very detailed calculations and specifications, drawings and supporting documentation, Chris and the gang have held my hand on what started out as a quite straight forward knock through requiring to Beams circa 3m and 1 at 2.1M into a full double skin wall being removed and a 5.6m steel being specified with minimal piers. I was back and forward with suggestions and questions and to be honest I think I was a pain in the Butt, it did not phase the team, the were very quick to reply and keen to help with their own suggestions and then new calculations. I would not hesitate to use them on future projects and would highly recommend them.
Stephen Weigel
Stephen Weigel
Excellent professional and approachable service. Recommended!
Elliot Warren
Elliot Warren
We have encountered all kinds of professionals and tradesmen when doing major build work. The journey has been tough but PorthouseDean were brilliant and helped us so much. Their quality of work was top notch and the level of service went above and beyond. Very happy with their assistance - prompt, helpful and just all round excellent. Thank you Chris and Akhil.
Amanda Balding
Amanda Balding
This service was painless and very efficient. I would highly recommend your company.
Dave Ingram
Dave Ingram
Friendly, prompt service. Good value - will use again!
James Murtagh
James Murtagh
I was very pleased with their service - friendly, helpful, detailed but clear drawings and calculations. They even provided a last-minute update promptly and at no extra cost. Would definitely recommend and use again.
Kyle Hatch
Kyle Hatch
Our Project Coordinator, Justyna, worked with our architech to put together a structural plan for our extension. It was clearly explained and transparent every step of the way. I felt informed about what was going on. Fully recommended.
Kevan Harrison
Kevan Harrison
the process was well managed, with very clear requests for information and support
Sam Jones
Sam Jones
Great friendly service, with quick turnaround times for our project.

An Efficient and Effective Service

We understand how frustrating being left waiting for days on end to hear back from a structural engineer can be. When you contact us, we aim to respond as soon as we can. For a service that puts you and your project first, get in touch today.

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    A Local Service With a National Reach

    At PorthouseDean, we are immensely proud of the variety and consistency of our service. Whether you prefer an email consultation or a phone call with one of our experts, a video call site walkthrough or an in person site visit — no matter where in the country you are based, our structural engineering for low-rise residential service is catered directly to you.

    • All
    • Loft Conversions
    • New Builds
    • Extensions
    • Basements

    Latest Projects

    Browse a selection of work we have done in your area and around the country. A local service that covers the entirety of the UK.

    Committed to Quality

    All of our structural engineering calculations are built on a platform of consistent quality. We do what we say and always deliver on what we promise. Our company values are:


    We know that working towards a shared goal helps us to grow as a team. This collective mindset ensures that our interactions are honest and transparent at all times.


    Integrity is important to PorthouseDean. We care about each and every one of our clients and are passionate about mutual respect — allowing for healthier, longer-term relationships.


    We learn and improve our offering with total autonomy. Rather than find solutions to problems, we always address root-causes, which feeds directly into our culture of continuous improvement.


    One of the greatest shifts in the construction industry in the last few decades is the increased focus on environmental concerns. Everything we do takes into account our impact on the world around us.


    At PorthouseDean, we’re never content with merely towing the line. We always look to innovate wherever possible — particularly when it comes to groundbreaking new technology and improvements to our service.


    We work diligently and aim to be as responsive as possible. Our team is driven to achieve the best possible results for our valued clients and strive to raise the bar at every opportunity.

    Is a Structural Engineering Career Right For You?

    If a career at PorthouseDean appeals to you, find out more.

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