If your water tank is leaking or an issue has been raised following a Legionella Risk Assessment you may need a tank refurbishment or a tank replacement. 

Cold Water Storage has the knowledge and expertise to deliver either of these options. We work with you to understand your requirements and any constraints. We will survey the site to complete an assessment of the tank and the provide you with our suggestions and recommendations. If the tank is structurally sound and easily accessible for maintenance, then a repair and refurbish is the sustainable option. Otherwise, if the tank is damaged, requires a change in capacity or to relocate the tank then a new water tank installation may be the best way forward. Cold Water Storage can offer exceptional solutions for both.  


We have developed a robust and reliable tank repair and reline service over the past 15 years which in many cases is the favourable option wherever possible. Our solution addresses issues such as deteriorating mastic, erosion, corrosion of internal steel fastening and bacterial growth. We have experience and knowledge repairing and lining the following types of tanks – click to find out more about each:

In the UK there are regulations for the coatings used for water tank refurbishment to ensure water tanks and lining don’t contaminate the contents of the tank. Any tank or coating material used should be approved by the Water Regulations Advisory Scheme (WRAS). The product we use offers a flexible lining and coating for water tanks; it is a WRAS approved solvent-free polyurethane coating specifically designed for re-lining potable and drinking water tanks. It provides excellent protection against erosion and corrosion. We offer a 10 year guarantee on all our tank lining systems.

We can also use a spray applied Polyurea lining system. This lining system is touch dry in five seconds and can be applied to large areas very quickly. The lining system is WRAS approved and Regulation 31/DWI approved meaning that compliancy is assured. The Polyurea lining system has fantastic properties of elongation and flexibility with zero risk of cracking or failure.


In the event that a tank repair is not possible or feasible, or your preference is a water tank replacement we can also plan and deliver this solution. We supply and install tanks which are built from WRAS approved sectional GRP panels approved for potable water storage, and are all manufactured in Britain using the highest standards. (GRP is a fibre reinforced polymer made up of fibres of glass. It makes for a very tough and durable material that can last for a long time)

To limit any downtime and to ensure continuity of water supply, we have developed a robust way of providing temporary water systems. We can install a temporary mains bypass or a temporary tanked system ahead of the the tank replacement process or any tank remedial works to ensures a continuous water supply throughout the duration of the works.


From the the moment we start working with you we are dedicated to the accurate assessment and planning and delivery of the project. We have a very efficient turnaround; and are accurate with the estimation of the length of project. Our planning process involves:

  • Phone calls with client to get a basic understanding of the requirements

  •  Site survey to carry out a full and thorough assessment of the plant

  •  In-depth proposal which includes one to two options with detailed specifications and estimated time of completion and firmed up pricing

  •  Ahead of the project commencing a GANT chart with detailed timings and daily activities

  •  We place health and safety at the top of our priorities so our clients always receive a Risk Assessment and Method Statement (RAMS) as well as certificates for all engineers involved in the project

  •  We always plan for waste removal and will consider all factors for the specific site

  •  Once the project is complete the CWS team leader will escort the client around the site to gain approval and sign off of the job

  •  We gather photograph and video evidence throughout the duration and submit a full completion report with evidence to the client upon completion

Extended Guarantee Option

We offer a 10 year extended guarantee option on all of our cold water storage tank lining systems.

Get A Free Quote

Get your free no obligation quote by emailing us today or giving us a call on 0113 229 5062

  •  Reliable and professional advice 

  • Complete nationwide coverage for clients

  •  Over 30 years experience within the water tank and legionella industry

  •  Complete project management
Reliable round the clock maintenance of your water tanks.
Providing complete nationwide coverage for clients requiring our legionella services.
Over 30 years experience within the water tank and legionella industry.
Our industry approved auditing methods ensure your business is compliant.


Completed Projects

We have worked alongside some of the biggest companies in the UK. We carry out every project with the same exceptional standard every time.


Satisfied Customers

Our reputation is something our company is built on and a quality job is carried out each and every time. This ensures that every customer is satisfied with the work we do.


Working Hours

Our dedicated specialists put in the hard hours to ensure that every job we work on meets legislation and client needs. We are expert in delivering a quality job.

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