CSSW.London Limited


Mr Benjamin Hickman MCIOB

Room 73, Wrest House, Wrest Park, Silsoe, Bedford, MK45 4HR, United Kingdom
020 7458 4073

CLW are industry leading experts in structural waterproofing, providing professional services in relation to waterproofing of basements and other buried structures. We are entirely independent and have no ties to any waterproofing suppliers or contractors. This means we are solely focused on delivering excellent waterproofing advice that protects buildings and clients.

With considerable expertise and experience, we are able to deliver outstanding value through:

•       Robust waterproofing design

•       True value engineering

•       Advice regarding CDP, insurance, guarantees

•       Assessment of defects

•       Expert witness and dispute resolution

We hold £5m Professional Indemnity Insurance. Our team is also security vetted to a high level.

CLW are;

-       SSiP Approved Designers

-       Cyber Essentials Plus certified

-       Members of the Property Care Association

-       CHAS Elite Approved


Our clients include City of London, Avison Young, NHBC, St George. We also work closely with Architects, Engineers and Contractors these include Eric Parry Architects, Buro Happold, Kohn Pederson Fox, AECOM, Curtins, Denton Corker Marshall, Patrick Parsons, Arcadis and Renaker Build Ltd.

Example of work 1
Salisbury Square Development The City of London Corporation identified a unique opportunity to create modern facilities for both the City of London Police and Her Majesty’s Courts and Tribunals Service in the heart of the historic Square Mile. CLW has been commissioned as the waterproofing design consultant for the three storey basement, which extends over the entire site as a whole. Working closely with the entire design team. A 125 year design life has had an impact on the design when considering the correct waterproofing strategy to meet these high standards. A minimum of two forms of waterproofing is required throughout, we have specified Types A, B and C with the majority being Types B and C. Client - City of London Corporation Architect - Eric Parry Architects Engineer - Buro Happold CLW Service - Structural Waterproofing Design
Example of work 2
81 Newgate Street, London CLW has been commissioned as the waterproofing design consultant for a two storey Basement, which extends over the entire site. This includes buried roof/podium deck elements, as the basement extends beyond the building line at ground level. Working closely with the entire design team to provide a clear and efficient design for the Grade 3 waterproofing, specifying both Type B (structurally integral) and Type C (cavity drainage) protections to achieve this. Project Manager – Arcadis Architect – Kohn Pederson Fox Engineer – AKT II CLW Service – Condition Survey & Design Review