Our Partnerships & Affililation

We’re proud of our membership of construction trade bodies and the reassurance that gives our clients. We believe in working to the very highest standards and going beyond that which statutory regulations require.

We’re also proud to work with companies that deliver market-leading solutions, companies that are aligned with our ethos of providing high quality services that can be relied on.

Leefran Design

Our partner, Leefran Design, provides exceptional architectural design and project management services. Their basement design and development management expertise ensures your project runs smoothly and to budget. 


Chartered Institute of Building

The Chartered Institute of Building represents an unequalled body of knowledge concerning the management of the building process. CIOB members are skilled managers and professionals with a common commitment to achieving and maintaining the highest possible standards.


Basement Information Centre

The Basement Information Centre was established in 1992 to support the development of domestic basements. They seek to encourage good basement practise in design and construction through the media, education and training.



We are a Delta-accredited installer. Delta is recognised as the UK’s market leaders in cavity drain waterproofing systems and hold BBA certification in the UK. Delta Membranes provide 30-year guarantees and are an essential component of basement extensions to ensure they are protected from water ingress.