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Basement Construction Company in London

If you are looking for an experienced and fully qualified basement company in London that you can trust, then Abtech Basements can help. Situated within easy reach of London, specialising in basement construction and waterproofing, we can carry out your basement conversion quickly and easily. We have managed to create a fantastic reputation for ourselves in the West London including areas such as Chiswick, Kensington, Fulham and Wandsworth, where we have built an extensive customer base.  

We understand that space, or lack thereof, is a concern for many people across London and our team will help you create a tailored basement to suit your needs, taking structural safety into account while our fully trained workforce will carry out the work to extremely high standards, leaving you with an area ready to be fitted out.  

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Basement Construction

Here at Abtech Basements, not only do we convert existing basements into a much more habitable area, we also carry out brand new basement building. Once your new basement has been constructed, you can use the space for a gym, swimming pool, extra living space or even a bedroom. Our team has years of experience in basement building as well a wealth of relevant industry qualifications, so you can be sure your home is in safe hands. 

Basement Conversions

Working in the capital, we understand the need to grab every inch of space available which is why we are specialists in basement conversions. Space restrictions will soon be a thing of the past, optimising your unused basement space to create a stunning, fully functioning area with endless possibilities.  


We will be with you every step of the way, on hand to discuss or give advice on any ideas or queries you may have. With 17 years trading history, you can trust us to take care of everything, from structural safety to the finished shell ready for you to fit out and add your own personal style to. Our friendly team will be happy to talk you through the endless possibilities your basement has to offer and make your unused space work for you. 

Basement Tanking London 

Your basement, whether built from scratch or already existing, needs to be properly protected from the inside to prevent any leaks or accidents, which is where our basement waterproofing service comes into effect. Our system adds a 100% waterproof layer to the walls, after this has been installed, your basement is ready to be fitted out.    

A fully functional and useful basement can not only add value to your home, acting as a great investment, but also enables you to make the most of the space that is available to you. So, if you are looking for a quality basement conversion in Oxford, make sure we are your first port of call.  

If you are interested in creating that extra space in your basement please call us on

01252 515168


fill in our enquiry form or email us: 


[email protected]

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