Basement construction services 

Looking for expert basement contractors in London? At Delta Force Basements, we deliver professional, reliable, and high-quality basement construction and structural services for residential and commercial clients. From new build basements to full waterproofing and structural repairs, we cover every aspect of below-ground construction.

Basement Shell Construction

We specialise in basement shell construction – the complete structural framework of your basement. Our team handles excavation, underpinning, waterproofing, and reinforced concrete work. Ideal for clients managing their own interior fit-out, we provide a solid, watertight shell ready for development.

From modest beginnings, we've grown through unwavering dedication and a commitment to continuous improvement. Each step has reinforced our core belief in the power of collaboration and the importance of integrity. We're passionate about what we do, and we're excited to share our story with you.

Existing basement conversion 

Convert your underused space with our basement conversion services in London. We turn existing basements into modern, functional rooms like bedrooms, offices, or gyms. Every project is fully compliant with building regulations and tailored to your lifestyle needs.

New build basement 

Planning a new home? Include a custom basement from the start. Our new build basement services are integrated into your architectural plans, providing additional living space, storage, or entertainment areas – all built to the highest standards.

Basement under garden.

Maximise your property potential with a garden basement. We design and build basements beneath gardens, patios, and driveways, allowing you to add space without changing the external appearance of your home.

Basement underpinning 

As underpinning specialists in London, we strengthen existing foundations to allow for deeper basements or to repair structural weaknesses. Our underpinning methods are safe, efficient, and engineered to meet strict building standards.

Basement waterproofing 

We are trusted basement waterproofing contractors using the latest techniques to keep your space dry and protected. Our solutions include sump pumps, cavity drain membranes, and full tanking systems – all in accordance with BS8102 standards.

Structural repair 

We carry out professional structural repair services to address movement, cracks, or foundation issues. Our experienced engineers assess, diagnose, and repair structural faults to ensure the long-term safety of your building.

Contact delta force group today.

Get in touch with our expert team for a free consultation and quote. We operate across London and guarantee professional service, exceptional workmanship, and long-lasting results in every basement project.