Cold Water Storage Tank Replacement

What cold water storage tank replacement covers

A proper replacement is more than swapping the tank. It’s a controlled job that protects your pipework, reduces the risk of leaks, and ensures the tank is correctly installed for long-term use.

• Isolating the supply and draining the existing tank safely
• Removing and disposing of the old tank where possible
• Supplying and fitting a correctly sized, suitable replacement tank
• Renewing key fittings as needed (such as valves, outlets and connectors)
• Connecting pipework securely and supporting the tank correctly
• Refilling, bleeding air where required, and checking operation
• Leak testing and final checks before handover

When a replacement is the right option

This service is most relevant if your current tank is cracked, leaking, heavily scaled, poorly supported, or missing basic hygiene protections such as a secure lid. It is also common when you are renovating a bathroom, upgrading pipework, or addressing ongoing issues like noisy filling, inconsistent flow, or repeated valve failures.

Landlords and small commercial premises often replace tanks to improve reliability and reduce the chance of water damage, especially where tanks are older, undersized, or installed in awkward loft spaces.

How the replacement is carried out

Before work starts, the water supply is isolated and the system is drained in a controlled way. The old tank is disconnected and removed, then the new tank is positioned and supported correctly, with connections made using appropriate fittings.

Once installed, the tank is refilled and checked for correct operation, with leak testing at joints and fittings. You will be advised of any related issues found during the work, such as worn isolation valves or pipework that may need attention to complete the job safely.

After the job: checks, advice and next steps

You will get a clear walkthrough of what was replaced and what was tested. If there are practical steps to help prevent future issues, such as improving insulation, securing the lid properly, or planning for access improvements, these will be explained so you can make an informed decision about next actions.