About Us

Having already demolished his own house to
self-build a new eco-house replacement, he was in his element working on such a prestigious multi-million pound project!

By contrast, for the home project he budgeted on spending no more than a quarter of the local build cost!  To make this even more challenging, his specification far exceeded the Building Regulations - a tall order.

By taking on the design and virtually all the actual building work, first hand experience of all the trades was gained.

Everything from groundworks, drains and foundations to block-laying, steelwork and concrete beam construction; joinery, roofing and tiling to glazing, plumbing and electrics. (The dark art of plastering was attempted but there has to be a limit!) 

The discipline of working to the high standards required in safety critical environments, combined with a genuine interest in building, construction and design, proved to be a good combination.

Experience has also been gained in many areas, such as underground rainwater harvesting, timber frame and engineered structural timber construction,  eco-heating, and insulation systems.

People outside of the 'Trade' are often at the mercy of extortionate costs.  Simon takes pride in helping people get value for money in an industry that assumes clients have very deep pockets! 

It doesn't have to be that way...

As a fully qualified Incorporated Engineer working in Air Traffic Services, Simon was given the task of working with the architects on the new Air Traffic Control Centre at Jersey Airport.  

When the opportunity arose to make a career change into design and build, Langlois Design & Build was started, not to take on multi-million pound control centres, but more down-to-earth domestic projects.

Over the years, exhibitions and seminars in the UK, France and Belgium have been most useful and informative.  With our building industry lagging so many years behind Europe and the rest of the World, it is essential to keep up to date with modern building design, construction and materials.


Since becoming fully accredited as a Domestic Energy Assessor, Home Energy Audits are now offered as a new service, providing your house with an Energy Performance Certificate and advice on how to improve it.