Basement Shell Ltd

Basement Shell Ltd is a London-based specialist in basement construction, underpinning, and structural works, with extensive experience delivering complex basement projects across the capital. We focus on doing things properly, every time. Basement construction is a highly specialised process, particularly in London where access, ground conditions, and regulations add real complexity.

It's not a job for general builders, which is why clients rely on us. Over the years, we've built a strong reputation for delivering high-quality, practical basement spaces that make the best possible use of the available area, while ensuring long-term structural performance. We provide a complete design-and-build basement service, managing everything from structural design and calculations through to underpinning, excavation, and waterproofing.

Our clients benefit from a fully coordinated process, backed by a 10-year structural guarantee and long-term waterproofing warranties on Delta membrane systems where installed. Our work spans residential and commercial projects, including new build basements, cellar conversions, and retrofit basement construction. With a consistent 5-star rating on Google, we are known for delivering well-managed projects, clear communication, and results that stand the test of time.

You'll not only experience great design, but you'll truly appreciate our finely-tuned construction management process. Our project managers are highly organised and attentive to detail, not to mention excellent choreographers of the many phases of construction.