Basement Construction
Specialist basement construction contractors for London and the South East
We work as a trusted delivery partner to civil and structural engineers, main contractors and high‑end property owners who need robust, buildable solutions in constrained urban sites.
Deep expertise in challenging ground conditions
With more than 40 years’ experience in the construction industry, we bring practical engineering judgement to every basement scheme.
Our teams are experienced in difficult ground and wet conditions, including high water tables and underground rivers, where build‑sequence planning and waterproofing are critical to programme and cost.
We provide:
- Traditional underpinning of existing structures
- CFA, secant, contiguous and mini piling
- Steel sheet piling and king post earthwork support systems
- Temporary works design and installation, including propping and jacking
- Dewatering design, installation and monitoring
- Integrated waterproofing solutions in line with BS 8102
Where possible, we value‑engineer the works to select the most appropriate retaining and support system for the site, surrounding structures and client specification.
Luxury basement construction for prime property
We construct high‑quality basements for super‑prime homes, boutique developments and landmark buildings, often beneath fully occupied properties.
Our focus is on structural integrity, low‑noise methodologies and a clean, well‑managed site that reflects the standards expected by discerning homeowners and developers.
Typical applications include:
- New single and double‑depth residential basements
- Retro‑fit basements under existing properties
- Plant rooms, leisure suites, pools and car lifts
- Extensions under gardens, courtyards and mews
Working with engineers and main contractors
Civil and structural engineers rely on us to turn complex designs into safe, buildable solutions on site.
We engage early to review temporary works, sequence, access and buildability, helping de‑risk the project and protect neighbouring assets.
Our approach includes:
- Collaborative review of engineer’s design and construction sequence
- Temporary works design, installation and on‑site adjustments
- Clear reporting on progress, monitoring and change control
- Direct liaison with neighbours, local authorities and utilities where required
Proven track record
We have successfully delivered basements for projects across Kensington, Chelsea, Belgravia, Wimbledon and the wider London and South East region, including: Burkes Road, Egerton Crescent, Eaton Place, Montana Road and Parkside.
Our portfolio also includes complex basements for heritage and specialist buildings such as Bevis Marks Synagogue and St Katherines Precinct.
