Delta Force Construction are specialists in basement construction across London and the UK. We deliver complete basement structures from excavation through to reinforced concrete shell, fully waterproofed and ready for internal fit-out.

Services

We provide a complete structural basement service, managing every stage of the build:

  • Site setup & excavation

  • Temporary works & structural support

  • Underpinning (where required)

  • Reinforced concrete foundations, walls & slabs

  • Structural steel installation (if required)

  • Waterproofing & tanking systems

  • Sump pump installation & drainage systems

Our role is to take your project from the ground down to a fully watertight concrete shell, ready for the next stage.

Types of Basements We Build

We work on a wide range of basement projects across the UK:

Basements Under Existing Properties

Carefully constructed beneath your home using underpinning methods to maintain full structural stability throughout.

New Build Basements

Built as part of a new development or extension, designed to support structures above.

Garden & External Basements

Standalone basement structures built beneath gardens or outdoor spaces, ideal for additional rooms or future developments.

WE DIG THE EARTH, DON’T COST THE EARTH

We construct basements under existing properties, new build basements, and basements beneath gardens or extensions.

Our process includes excavation, underpinning where required, structural concrete works, waterproofing systems, and drainage installation.

We ensure every basement is built to the highest standards, structurally sound and protected against water ingress.

Our Approach

Basement construction is one of the most complex areas of building — and it must be done properly.

Delta Force Construction, we focus on:

  • Structural accuracy

  • Safe working methods

  • High-quality concrete and reinforcement

  • Proven waterproofing systems

  • Attention to detail at every stage

We don’t cut corners. We build it right the first time.

Why Choose Delta Force Construction

 

  • Specialists in basements, underpinning & groundworks

  • Complete service from excavation to watertight shell

  • Strong, durable structural builds

  • Reliable, experienced team

  • Clear communication from start to finish

We understand that everything depends on the structure — and we make sure it’s done properly.

Get Started

Planning a basement project?

Get in touch with Delta Force Construction today to discuss your plans, arrange a site visit, or request a free quote.

📞 Call us  07405046475
📧 Email us groundworkcontractors@hotmail.com