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Basement Underpinning and Conversions in London

Property owners and developers in all parts of Central and South-West London can choose Creating Space Below Limited for their basement underpinning and basement excavation work, the starting point for all basement conversions, new builds and extensions in our exclusive trading area.

Covering all major locations including Fulham, Putney, Wandsworth and Wimbledon, we deliver a full project management service that covers the entire planning, design and construction process. If required, we can work effectively with other contractors during the fit-out phase of a project.

When other contractors arrive for the fit-out phase of basement extensions and conversions, we retain a strong on-site presence to ensure everything is completed to the highest standards of workmanship. Creating Space Below Limited is the personal face of basement construction work and we deal with all clients on a close, intimate level.


Following initial contact, we arrange a prompt consultation to discuss your basement extensions and conversions in detail. Throughout the consultation process, you will deal directly with the business owner. Our company never uses subcontractors, salespersons or third parties to act on our behalf.

From the very first point of contact, you’ll be dealing with those responsible for overseeing the entire project. Once we’ve discussed the available options and gained your agreement, we can usually have a detailed quotation prepared inside two to three working days.


Our designers, architects and engineers have already planned many new builds, basement extensions and basement conversions throughout all parts of London, including Westminster, Mayfair, Fulham, Wimbledon, Chelsea, Putney and Wandsworth. We value your input and work closely with you to formulate plans for the perfect basement.

If you’d rather use your own architects and engineers, we promise that it won’t be a problem. We are experienced enough to work with other professionals at every level, ensuring our own clients get the results they expect from our highly regarded services.

Safe Working Practices

At this point, we should point out that Creating Space Below Limited always make health and safety our number one priority. We have our own team of experienced Health and Safety Managers who oversee all new basement build and conversion projects. Our construction team is highly experienced and conversant with all safe working practices.


The construction phase of our projects begins with excavation and basement underpinning, a vital part of the process that reinforces the strength of the foundations. Our structural engineers are highly knowledgeable and have already applied their expertise on many new builds and basement conversions in Fulham, Putney, Wandsworth and Wimbledon.

Once we have a solid foundation in place, Creating Space Below Limited build basement spaces around the specifications of our own or your chosen architect. Throughout the entire construction process, we use modern operational methods and the finest industry materials.


We are qualified installers of today’s most advanced waterproofing systems. By using the finest membranes on our basement conversions and extensions, our own clients can use their new property spaces in confidence without having to worry about dampness and harmful spores. Our waterproofing membranes have guarantees of up to thirty years.

Basement Fit-Outs

The final fit-out of your new basement space is the stage where everything that has gone before finally comes to life. At Creating Space Below Limited, we finish all basements to exact specifications and to the highest standards. If require, we can continue to oversee your project even if you prefer to use another business for the fit-out phase.