Sebastian Building Solutions Ltd

Sebastian Building solutions ltd

Welcome to Sebastian Building Solutions Ltd

We are Lofts, Extensions and General Refurbishment specialists, working throughout London,Kent, Middlesex, Bedford and Cambridge. We offer a bespoke, client focused service, where we believe our clients are individuals and that each project should be approached on that basis.
Sebastian Building Solutions Ltd will project manage your loft conversion or extension from start to finish,from initial design right through to decoration. The result will be the addition of valuable space finished to the highest standard, using only the best quality materials and environmentally friendly building practices.


Inspirational Architecture and Design for your extension, conversion and renovation project: You can rely on SBS to take care of your whole project from initial design concepts to a perfectly-finished house with full approval from the Council. We now have an in-house architect, structural engineer and planning advisor who can work with or team of builders.

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We specialize in property refurbishment, serving costumers in London with experience in the construction industry of more than 15 years. Our reputation is built on our customer’s satisfaction and was earned by following our basic guideline of completing jobs on time, affordable prices, integrity and professionalism. These are the keys to our success. We carry out all home and office refurbishment works, all at the highest standards and within your budget.



Need extra living space or an additional bedroom? The easy and cost-effective way is to convert your loft space into a light and spacious room with the added bonus of plenty of extra storage space. It’s easy to add a comfortable en-suite bedroom and to enjoy top floor privacy. Or convert your garage into a home office, play room, activities area or your own private fitness suite. SBS will show you how easily and quickly these conversions can be achieved without major disruption and within a budget you agree.



No need to move while house prices are still static. Create enjoyable additional living spaces in your existing property with a luxury extension or a spacious conservatory. They will enhance your lifestyle and add a significant value to the price of your property. At SBS we can give you the home improvements you want at prices that will pleasantly surprise you.

What People Say

Our Victorian townhouse was in dire need of renovation. Fortunately, picking SBS for the job was the right choice. They were highly recommended by a friend, and to be honest their professionalism and service are exemplary. I wouldn’t hesitate to use them again.
And to the team – you are the best! Thank you!


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SBS did our house renovation, with extension and loft conversion. The project was well managed, timely done and a really great experience for us as customers. The team made sure we are always well-informed and know exactly what is expected at every stage of the process. We were given a timeline in the beginning and were helped to select the best finishes, such as kitchen, flooring, bathroom sanitary ware, etc. Extremely happy with the service and the final result!


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