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BCC can take care of any property renovation or house extension, from complex double basement developments to a new builds.

Our builders have worked on Victorian and Georgian properties across London, giving them a slick new light and converting them into modern and contemporary living spaces.


Reviews (3)

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Matthew Winch

27 January 2018

To Whom It May Concern
Blockchain Construction have completed several projects for my business over the last 12 months to a very high standard. The works have ranged from demolition and making good, erecting up to 5 meter “L” shaped partitions with new doors fitted. They have also carried out ad hoc repairs on a regular basis. I would recommend Blockchain Construction highly for eth following reasons”
Work always completed on time or early
Works completed within budget
Works completed to a high standard
All has been professional cleaned and made good afterwards.
We are a corporate landlord with over 50 properties requiring regular conversion of room and repairs. Blockchain Construction remain our contractor of choice and we continue to work with them. I have known one of the principals for ten years.



27 January 2018

Throughout the project BCC's team were calm, organised and approachable and my wife and I are absolutely delighted with our new kitchen. BCC have liaised with the building inspector and the project was signed off without any problems. I would not hesitate to employ Blockchain Construction again and it is with pleasure that I am able to recommend them to you.
I would be more then happy to be contacted either in writing or on the above number should you have any further questions.


Antony Fullerton

19 January 2018

"We chose Blockchain Construction based on the price and personal recommendations. The quote was the middle of the 3, and you never really want to go for the cheapest option as there will be loads of hidden extras.
We are absolutely delighted with our new basement, which has been expertly fitted-out to an incredibly high standard, and which will enable us to stay within the area which we love, in the house which we love, for many years to come."


Blockchain Construction in London can oversee and provide as much of the services required to complete your basement as you wish. With a wide range of basement services available We can take you through the whole planning and design process, excavation through to construction of the shell and waterproofing all the way through to fit-out and completion. We offer a complete basement conversion service. Likewise we would also be happy to work alongside another contractor that you may wish to undertake the fit-out phase of the project. In this case BCC would still continue to have a presence on site to guarantee the project runs smoothly and is finished to the highest possible standards. BCC truly believe in a personal service and working with the client face to face. Our success to date has been completely organic with most new business coming from word of mouth. Design With a highly experienced and proven design team around us, including Architects, Engineers and Interior designers, BCC can offer you any level of design input you require to create your perfect basement. Some people may already have Architects or Engineers they wish to use, or may already come to us with planning in place. BCC are more then happy to work alongside other professionals to achieve your desired basement. Health and Safety Health and Safety is always at the forefront of our minds here at BCC. We have our own Health and Safety Managers overseeing all of the projects we work on and we take all aspects of Health and Safety extremely seriously. Waterproofing Stage BCC are qualified installers of Delta Membrane Systems and Pumps. Delta are the leading manufacturer of waterproofing systems and are one of the main suppliers to the basement industry. Delta offer a 30-year guarantee on all of their membrane systems. Insurance and Guarantees BCC hold the highest standard of insurance required which includes employers and public liability, and an all risks cover. This will cover you if we, or a member of staff, cause damage or loss through negligence or failing to follow the design. If for any reason there is loss or damage caused due to incorrect design or calculations then the structural engineer or architect would be covered under their professional indemnity insurance.

Are you looking for an extension or other refurbishment work at the same time as your loft conversion? Keep your entire building project managed by one company with Blockchain Construction, the specialist London kitchen extensions.. Whether you are looking for a kitchen, side return or double storey extension, or even an extra room or general refurbishment work, BCC can help. Kitchen extensions are a fantastic way of increasing living space, which can often be a much needed requirement for a growing family living in London. Many home extensions are often used to create bigger kitchens, dining and living areas as well as much needed utility room or ground floor toilet. By appointing BCC you can ensure costs are kept to a minimum by having the same contractor under one roof. BCC have carried out hundreds of London kitchen extensions, with many happening at the same time as a loft conversion making us specialists in this area. We have an extensive list of satisfied clients who we would be more than happy to supply references; chances are we will probably have worked on an extension close to or in the vicinity of your home.

Blockchain Construction are the go-to company for when you want to make the most of your attic space. With a strong focus on customer service, our aim is to help you achieve the house of your dreams and maximise your living space. All we need to know is what you want! Whether it’s to create a master suite, a home office or kids’ bedrooms, we handle everything from planning permission to architectural design and construction. Proud to offer you competitive prices on your loft conversion, we approach every project individually. Keen to create a bespoke loft space that adds genuine value to your property, just the way you want it. With our own architects, project managers, planners and construction specialists, our team knows how to turn that dead attic space into crown atop your house. And we are extremely flexible, determined to work around your schedule. Keeping to strict deadlines, you can rest assured that your project will be completed in a timely manner when you choose Blockchain Construction!