Sealing Today. Safeguarding Tomorrow.
Cookham Dean Service Reservoir - Case Study
At Cookham Dean, HydroSeal Ltd was tasked with restoring a Victorian-era distribution service reservoir, a remarkable piece of 19th-century engineering still active in the local water network. Years of natural aging and material wear had led to water ingress, threatening both water quality and structural integrity.
Challenges
- Significant water ingress due to porous Victorian construction materials
- Risk of contamination and loss impacting distribution efficiency
- Need to preserve the historic structure while meeting modern water safety standards
Our Solution
Hydro Seal applied a Flagon membrane system, providing a durable waterproof barrier that:
- Eliminated water ingress and loss
- Protected against contamination
- Extended the reservoir’s operational life
Outcome
The project was completed efficiently with minimal disruption, safeguarding the community’s water supply. Hydro Seal successfully rejuvenated a historic reservoir, blending engineering heritage with modern performance and reliability.
HDPE External Membrane Installation –
3 Metre Trench Detail
We completed the installation of a high-performance HDPE membrane system to the
external structure of a Victorian-era service reservoir.
The works included the external roof structure lining and the formation of a 3-metre
deep trench detail designed to protect the perimeter walls from long-term exposure to
the elements and ground ingress.
Operating within a live programme environment, the team worked through challenging
site conditions to deliver the installation within the agreed timeframe. Early completion
supported the client in progressing the asset toward recommissioning, increasing
operational capacity within the region.
A well-executed containment and protection solution, delivered safely and efficiently
Baffle wall installation
This project involved the fabrication and installation of 360 metres of baffle curtain,
securely mounted using high-grade stainless steel brackets and fixings to ensure
long-term durability and corrosion resistance.
The baffle curtain structures form an integral component of the asset’s infrastructure.
Designed to regulate and direct water movement within the reservoir, they facilitate
controlled flow patterns, helping to maintain a consistent and continuous water
circulation system. This controlled flow improves operational efficiency and supports
the overall performance and longevity of the reservoir system.
The installation was completed to exacting standards, ensuring structural integrity,
reliability, and alignment with the asset’s hydraulic requirement
