Fully Qualified Electrical Installs
20+ Years Industry Experience
Gas Safe Registered Heating
STRUCTURAL ALTERATIONS COMPLETED WITH PRECISION
Structural steelworks are a big part of making extensions, loft conversions and staircase alterations work properly. We design, supply and install steel beams and frameworks that give your build the strength it needs from day one. In Swindon, Wiltshire, RSJ Design & Install helps you create open spaces, support new floors and handle structural changes without cutting corners.
Whether you're removing a load-bearing wall, opening up a kitchen or adding a room in the roof, the structural strength of your home is paramount. Many of these projects form part of wider building solutions, helping everything come together safely and efficiently. Our work is planned to suit the structure you already have, so the finished result feels right and performs as it should. With our team, you get practical steel solutions that are made to last.

FROM DRAWINGS TO THE FINAL FIT
Our process covers estimating, design and drawings before any steel is supplied, which helps you understand what your project needs early on. We then handle fabrication and installation with a focus on accurate fitting and steady progress on site. If your build needs beams for an extension framework or support for a conversion, we make sure each element is prepared for the job it has to do.
Care at this stage helps avoid delays, awkward adjustments and uncertainty once building work is underway. Meeting building regulations is an important part of the process, helping your project progress with confidence. Years of experience also mean we understand how structural steelwork needs to tie in with the rest of your project. Feel free to contact us for more information.

WHAT YOUR STRUCTURAL STEELWORK CAN COVER
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Design, supply and installation
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Estimating for planned structural work
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Design drawings for steel layouts
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We erect and build on-site
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Steel beams for extensions
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Frameworks for loft conversions
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Support for staircase alterations
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Durable structural solutions
Stuart is very competent, well organised and very professional in his approach. This is the 6th builder that I have had do a renovation, he is by FAR the best, and at a sensible price. It has been a delight to work with Stuart, with minimal stress and completion on time and on budget. I would highly recommend him.
Stuart did a decent job and was transparent on his price. Would use him again.
- dct_hhithorn, MyBuilder











