Cold Water Storage
Tank Replacement

Commercial cold water storage tank replacement across the UK, from a family-run specialist with over 25 years’ experience.

Cold water storage tanks don’t last forever. Galvanised steel tanks corrode, early GRP tanks crack and weep at the joints, lids and insulation fail, and many older installations no longer meet today’s water regulations. When a tank reaches that point, replacing it is usually the most reliable way to protect water quality and keep the building compliant. Express Water Tanks replaces commercial cold water storage tanks for hotels, office blocks, apartment buildings, property managers, public sector buildings and development projects across the country.

Signs Your Tank Needs Replacing

• Rust, corrosion or flaking coatings inside the tank
• Leaks, weeping joints or damp around the base
• A missing, damaged or poorly fitting lid
• Stored water regularly above 20°C, or a tank that is far bigger than the building now needs
• A Legionella risk assessment or inspection that recommends replacement

Not sure what standard your tank needs to meet? Read our guide to cold water storage tank regulations.

Our Replacement Process

1. Survey – an experienced, certified engineer inspects the existing tank, access, supports and pipework.
2. Quotation and RAMS – you receive a detailed quotation with a risk assessment, method statement and estimated timescale of works.
3. Temporary supply – where needed, a mains bypass or temporary tank keeps the building supplied throughout.
4. Removal and installation – the old tank is removed and disposed of responsibly, and a new WRAS-approved one-piece, two-piece or sectional tank is installed in the plant room, loft, on the roof or outdoors.
5. Chlorination and handover – the new tank and pipework are chlorinated before the system goes back into service.

Built to Current Standards

Every replacement is carried out in line with the Water Supply (Water Fittings) Regulations and ACoP L8 guidance on Legionella control. That includes byelaw upgrades, cross flow installations to improve turnover, insulation to keep stored water cool, and properly fitted lids with screened vents and overflows. Where access is tight, GRP sectional tanks can be carried in as panels and assembled in place.

Fitting a tank in a new building or extension? See our commercial water tank installation service.

Replace, Refurbish or Clean?

Replacement isn’t always the answer. If the tank is structurally sound, targeted water tank repairs, refurbishment and relining or cleaning and servicing may be enough. After a survey we’ll give you an honest recommendation.

Areas We Cover

We replace cold water storage tanks across London, Manchester, Birmingham, Colchester and Essex, Kent, Liverpool, Bristol and beyond. See all service areas.

24/7 Emergency Cover

Our engineers are available 24 hours a day, 365 days a year for emergency and scheduled tank repairs and replacements. Call 01206 239804 or get in touch online to arrange a survey.