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Cold Water Tanks

Find high-quality cold water storage tanks and accessories from trusted brands at Toolstation. Whether you need a loft tank, small water tank or 50-gallon cold water tank, we stock products in various sizes and configurations.

What Are Water Storage Tanks Used For?


Water storage tanks can be installed in your loft, supplying your central heating system with cold water to be heated and transported around your home as required. Usually, cold water storage tanks are found in older installations known as regular boilers, and these systems can take longer to heat. Combi boilers and system boilers do not rely on cold water storage.

The tank is filled via the mains water supply, storing it until hot water is required. A ball valve must be installed to prevent the tank from overflowing, whilst Byelaw 30 kits enable your storage tank to comply with the necessary safety requirements.

Tank jackets and cylinder jackets can be purchased to prevent your cold water tank from freezing during cold weather. Shop our full range of water storage tanks and related products here.
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( 65 )
Product code: 18984
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Contains 22mm Tank connector, Part 2 Ball valve, B Read more

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( 27 )
Product code: 67700
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Snap on lid for the 4 gallon cold water tank. Read more

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( 53 )
Product code: 61470
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Two piece lagging, complies with water bylaw 30. S Read more

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( 49 )
Product code: 38349
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WRAS approved. Made to BS4213 : 2004.Lid a Read more

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( 12 )
Product code: 37570
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Byelaw 30 fittings pack including tank lid, jacket Read more

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( 5 )
Product code: 47335
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Flexible material lid for the oval 25 gallon tank. Read more

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( 25 )
Product code: 12098
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WRAS approved. Made to BS4213 : 2004.Lid a Read more

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( 15 )
Product code: 17512
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Two piece lagging, complies with water bylaw 30. S Read more

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( 53 )
Product code: 89200
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4 panel flame retardant cover, 80mm thickness (nom Read more

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Product code: 40164
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Tank connector, breather and adaptor containing al Read more

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( 8 )
Product code: 91853
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A 25 gallon (113 litre) tank that will fit through Read more

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