BASEMENT CONVERSION SERVICES
We work on basement construction with homeowners, national builders, architects and civil engineers across North & West London.
Basement Construction, Conversion & Waterproofing Specialists in London
Basement Shell delivers specialist basement construction services across London, managing projects from initial design and planning through to excavation, structural works, waterproofing and final fit-out. Every basement is tailored to the property, creating practical, high-quality living space while enhancing long-term value.
Our expertise covers basement excavation, underpinning, reinforced concrete structures, waterproofing systems and complete basement shell construction. Working closely with homeowners, architects, structural engineers and developers, we ensure every stage is completed to the highest standards of workmanship and compliance.
Many clients come to us looking to unlock unused space beneath their property. Additional bedrooms, home cinemas, gyms, offices, wine cellars and self-contained living areas can all be incorporated into a carefully designed basement conversion that complements the existing building.
A fully managed service is available throughout the construction process, providing a single point of responsibility from ground investigation through to completion. For projects where a separate contractor has been appointed for the fit-out stage, Basement Shell remains actively involved on site to oversee the shell and structural elements, helping maintain programme, quality and coordination between trades.
Our reputation has been built through referrals, recommendations and repeat business across London. Clients value our hands-on approach, direct communication and commitment to delivering technically sound basement construction projects with exceptional attention to detail. We’re extremely proud to be rated 5 stars on Google!
Insurance and Guarantees
Basement Shell hold the highest standard of insurance required which includes employers and public liability, and an all risks cover. This will cover you if we, or a member of staff, cause damage or loss through negligence or failing to follow the design.
If for any reason there is loss or damage caused due to incorrect design or calculations, then the structural engineer or architect would be covered under their professional indemnity insurance.