Listed Buildings

CCL understands the beauty and bespoke manner of Listed Buildings. The company has a wealth of experience working with Preservation and Conservation Officers and can understand and plan a compliant design, in line with all relevant guidelines.

Listed Buildings

The majority of listed buildings in the UK have some form of basement or cellar. At the time of these builds, it was the norm to incorporate one into a house that would have waiting staff and large food storage requirements. This would provide a cooler and constant storage temperature.

Today, many of these basements and cellars have been left untouched for years, leaving them very damp and in need of repair. You cannot tackle a listed project in the same way you would a traditional basement refurbishment. Methodical planning from start to finish is the only way you can successfully bring a cellar back to life. You will need to strictly follow all planning conditions, ensure all works are reversible and have regular dialogue and visits from your local conservation officer.

Cast contracting Ltd (CCL) would be happy to undertake an early design survey to fully understand the construction and conditions of the existing structure, as well as liaising with the Preservation Office where appropriate. Since CCL was first formed in 1997, it has had the privilege of working on hundreds of bespoke listed properties across the United Kingdom.

BS8102:2022 Code of practice for the ‘Protection of below ground structures against water ingress’ is the guidance document for designing the below ground waterproofing strategy. Within this British Standard, it describes three forms of waterproofing. A ‘Type A’, being an applied membrane; ‘Type B’, being an integral form of waterproofing within the structure; ‘Type C’ form of waterproofing being a Water Management System (Cavity Drain).

One of the more commonly proposed and accepted waterproofing methods for listed buildings is a water management system. Surface preparation can be minimal, whereas applied tanking slurries/renders can be very intrusive. The wall membrane can be mechanically fixed to the surface and easily removed if required in the future.

The floor membrane can be built up from the existing floor if the height permits. This is done by using closed-cell insulations and membranes, allowing water to freely drain away in periphery drainage.

CCL has been very fortunate to have worked on some landmark projects when it comes to listed buildings, these include Historic Museums, High-profile Mansions, Country houses, Theatres, and Historic Cottages – all steeped in history with their own story to tell.

Latest Projects

The Marshall Building, London

British Museum

The British Museum, London

St John at Hackney

St John’s Gardens, Hackney

Oxford Student Castle

Student Castle, Oxford

South Lodge Spa

South Lodge Hotel & Spa, Horsham

Sky Central

Sky Central

Sidney Sussex College

Sidney Sussex College Cambridge University

Royal Opera House

Royal Opera House Covent Garden

Paterson Building

Paterson Building, Manchester

Design | Supply | Installation

Cast Contracting Ltd (CCL) is the UK’s leading specialist in Design and Installation of all Waterproofing, Tanking and Ground Gas Systems across the United Kingdom. CCL prides itself on offering the highest level of service throughout the Design, Planning, and Installation process.

Structural Waterproofing & Ground Gas Solutions

CCL’s in-house design team can offer a comprehensive proposal for all scenarios in line with BS:8102 and BS:8485.

CCL Guarantees

One of the most comprehensive Guarantees across the industry, taking full project ownership.


Cast Contracting Limited is one of the longest standing industry specialists. As it is now part of the CCL Group of Companies, Cast Contracting Ltd has the additional stability and support with over sixty employees across the Group.

Our Services:

Working throughout the UK, CCL takes pride in offering the highest level of service with every major manufacturer across the sector.


Basement Waterproofing

Podiums / Terraces / Balconies

Ground Gas Membranes

Trafficable Coatings

Water Management System

External Membranes

Concrete Repair

Customer Success Stories

friars walk logo

★ ★ ★ ★ ★

Friars Walk

“The CCL team were incredibly conscientious and provided a 24-hour installation service to ensure our strict schedules were achieved. The team on site were very helpful and were able to provide solutions to overcome any problems encountered during the construction of the site. Nothing was too much trouble.”

Lee Lovering, Construction Manager, Bowmer and Kirkland

★ ★ ★ ★ ★

Royal Opera House

“Cast Contracting’s waterproofing expertise ensured that all of the critical waterproofing works carried out at The Royal Opera House were to the highest professional standard. The helpful and proactive team of applicators were able to deliver the waterproofing works to our strict installation programme whilst achieving a high quality of workmanship.”

Tom Ogden, Site Manager, Careys PLC

★ ★ ★ ★ ★

Grosvenor House

“Grosvenor House was a complex domestic build located on a site that was very wet. The subterranean ground conditions were running sand and a potential ground water pressure of 5 tonnes per square metre expected to the RC basement structure. With this in mind we needed to have complete confidence in the company who would be providing the water proofing solutions, which we found in CCL. From their initial proposals all the way through to completion they were professional, helpful, thorough and cost effective. It is imperative as a luxury house building company that you have a watertight structure below ground. Due to the CCL solutions and implementation, there have been no such issues that have arisen since completion and that is invaluable.”

Craig Riley, Contracts Manager, Charybdis Developments Ltd

Get Started

    We will only use your information in regards to this enquiry