Abtech Basements

Abtech Basements is a specialist company focused on the construction and waterproofing of below-ground structures for both public and commercial clients. With over 45 years of industry experience, they have established themselves as a well-known basement conversion company operating in London and Oxford, and across the South of England. Their team is highly skilled and fully trained, ensuring peace of mind for clients entrusting their property to Abtech.

The company offers a comprehensive service for new build basements, including piling, excavation, drainage, pumping systems, and reinforced concrete structures, preparing the foundation for new housing. For existing properties, they provide expert services in retrofit basement and cellar conversions, leveraging their extensive experience in underpinning, temporary works, and excavation within established structures. Their structural waterproofing department specialises in delivering effective solutions using modern products and techniques to achieve a dry environment, meeting contemporary expectations.

Abtech works with a range of reputable partners and products, including Geobond for piled solutions, Delta for certified waterproofing, and CGS for insurance-backed guarantees. They are also proud members of the Considerate Constructors Scheme and are advised by CHAS on health and safety compliance. Their expertise has been recognised and featured in publications such as Chelsea Life Magazine and The Independent, highlighting their significant contributions to basement extensions and conversions.