Get Your Project off the Ground

We are one of the UK’s only construction companies that specialises in building basement structures for new developments. Starting from the bottom so you can build your way up, we work closely with architects and self-builders to create what will be the foundations of the build. Our expertise enable us to manage all of the complexities of building underground, so you can get on with planning your home.

From Underground Level Up

We use an Insulated Concrete Formwork (ICF) System and this highly energy efficient construction method is often the perfect solution for new developements.  So, when we’ve finished our work underground, we can keep going up to complete the building’s superstructure, meaning you only need one contractor to build the entire framework of your home.

The ICF System

We use ICF for its high levels of energy efficiency and sound insulation compared to traditional construction methods. It’s a sustainable and straight-forward system, which doesn’t complicate projects or increase costs. The high strength in-situ core in the ICF panels means many design limitations can be overcome, which is why it has become the construction method of choice for many self-builders and architects.


Our specialist knowledge of underground structures means expertly constructed swimming pools…


Basement creation for homeowners looking to extend their home underneath its foundations…


Creating living space underneath gardens when traditional extensions are not an option…


If you’re looking for further information, please get in touch – we’d be happy to discuss your project’s requirements in detail.

Basement Structuresthe Experts in Underground Construction

0208 4056400

Basement Structures,

Thornton house,

Thornton road,


SW19 4NG

Registered in England and Wales Company No. 11177175