Your Trusted Partner for Water Tank Replacement
If you’re here, there’s a good chance your water tank is beyond repair - leaking badly, structurally compromised, or simply no longer fit for purpose.
That’s where we come in. At Titan, we specialise in the full replacement of cold water storage tanks in commercial, industrial, and public buildings. Whether the tank has failed, or your site needs to upgrade to meet modern compliance standards, we know what’s required to get it sorted safely, efficiently, and with minimal disruption.
Our approach is practical and experience-led. We don’t push replacement unless it’s the right call - but when it is, we’ll handle the job from start to finish, including removal, install, and testing. All done to spec. All built to last.
Nationwide Service
Reliable Expertise Wherever You Are
Our experienced management team operate from Titan’s head office near Liverpool. While our roots are firmly planted in the North West, our capability extends right across the UK. We deliver water tank replacement projects nationwide through our trusted network of regional engineers and project managers. Whether it's swapping out a failing tank in a hospital plant room in Glasgow, installing a new sectional tank at a school in the Midlands, or upgrading an ageing system on a coastal site in rural Cornwall - we’ve been there - and we’ve solved the same kinds of problems you’re likely facing now.
If you’re unsure whether your existing tank can be salvaged, or you’re weighing up your replacement options, the engineering team at Titan are always happy to offer straight-talking, practical advice.
A Beginners Guide to Tank Replacement
Watch as our MD Marc Fitzpatrick gives you a crash course in the world of replacing water tanks in under 1 minute!
What Is Water Tank Replacement?
Water tank replacement is the process of removing an existing cold water storage tank and installing a new, fully compliant system in its place. It’s the go-to solution when a tank has deteriorated beyond repair, no longer meets safety standards, or simply can’t keep up with your building’s needs.
Unlike patching or relining, replacement provides a complete reset - with brand-new materials, improved hygiene, and long-term peace of mind.
The typical process includes:
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Assessment and Planning – We inspect your current setup, discuss your requirements, and design a replacement that fits your space and usage.
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Safe Removal – The old tank is isolated, drained, dismantled, and removed safely with minimal disruption.
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Installation of the New Tank – We install a new tank system, usually sectional GRP or one/two-piece plastic, built to the latest standards.
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Connection and Testing – All pipework, valves, and insulation are connected, and we fully test the system before sign-off.
Water tank replacement is often the most effective way to solve persistent issues like leaks, contamination, or non-compliance. It’s a future-proof option for sites that want a fresh start with a reliable, regulation-ready water storage solution. Take a look at this case study that shows the benefits of replacing a dilapidated water tank - Potable Water Tank Replacement Case Study.
What Types of Tanks Are Commonly Replaced?
Not every tank can be saved - and when structural damage, compliance failures, or serious hygiene risks are in play, replacement is often the safest and most cost-effective solution.
Here are some of the most common tank types we replace:
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Potable Water Tanks
Used in schools, hospitals, office blocks, and residential buildings - these tanks must meet strict hygiene and water quality standards. If the tank is degraded, contaminated, or fails inspection, replacement is often the only way to regain compliance and protect users.
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Galvanised Steel Tanks
Heavily corroded or pitted steel tanks are difficult to repair safely. Replacement removes the risk of sudden leaks or contamination caused by rust, especially where potable water is involved.
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GRP (Glass Reinforced Plastic) Tanks
While GRP is corrosion-resistant, older units can suffer from delamination or fibre exposure. When the tank’s structure is compromised, replacement offers better reliability than attempting patch repairs.
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Sectional Panel Tanks
Common in larger buildings. Over time, the joints and seals degrade, and panels may bow or crack. Replacing the tank ensures a tight, hygienic seal and brings the system back to spec.
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Category 5 (Cat 5) Break Tanks
Installed where there’s a risk of backflow contamination — such as in industrial, agricultural, or lab settings. These systems must meet strict regulations under Fluid Category 5. If the tank’s integrity or air gap is compromised, full replacement is usually required to stay compliant.
Explore The Different Types of Tanks Our Expert Team Can Replace
10 Benefits of Replacing Your Cold Water Tank
1. Long-Term Reliability
A new tank eliminates the risk of recurring leaks, corrosion, or internal failures. It gives you peace of mind that your water storage is secure, compliant, and built to last - with minimal ongoing maintenance compared to patch-up solutions.
2. Guaranteed Compliance
New tanks are built to meet the latest Water Supply (Water Fittings) Regulations and WRAS approval standards. This ensures your site stays compliant with health and safety guidelines, helping you avoid fines, shutdowns, or failed inspections.
3. Better Water Quality
Old tanks often harbour biofilm, scale, and bacteria. A new tank with modern materials and internal finishes provides a cleaner environment for stored water, improving water hygiene and reducing the risk of Legionella or contamination.
4. Reduced Downtime
A properly planned replacement can be quicker and more efficient than constant patching or relining attempts that never fully solve the issue. One well-managed replacement minimises disruption and saves time in the long run.
5. Improved Thermal Performance
Modern water tanks come with better insulation options to maintain consistent water temperatures. This helps with energy efficiency, reduces the risk of overheating or freezing, and supports safe storage conditions all year round.
6. Space-Saving Designs
New tanks can be custom-built or modular, making better use of available space. Whether you're upgrading a tight plant room or need a lower-profile design, replacement gives you more flexibility than working around outdated shapes.
7. Lower Maintenance Costs
An ageing tank often becomes a money pit for repairs and monitoring. Replacing it with a new, maintenance-friendly design reduces the need for constant servicing, callouts, and emergency fixes - saving money over its lifespan.
8. Safer Working Conditions
Cracked lids, rusty ladders, and unstable access zones are common with old tanks. Replacing the tank allows you to install safer access platforms, guardrails, and fittings that protect engineers and meet current HSE standards.
9. Increased Storage Capacity
If your water demand has grown, replacing the tank gives you the opportunity to upsize. A new design can improve capacity without compromising footprint - useful for buildings with changing occupancy or added plant.
10. Future-Proofing Your System
A replacement tank can be designed to work with future upgrades - from booster sets to remote monitoring systems. This gives you a flexible foundation that supports your long-term building management goals.
Our Clients
Appointed on our reputation, retained on our results!
With over 50 years of water management experience, Team Titan have become trusted partners to some of the UK's leading corporate brands.
Case Studies
Take a deep dive into some of the dozens of tank replacement projects we deliver across the UK every year, offering a glimpse into the challenges faced and the innovative strategies our team have employed to deliver excellence for our customers.
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How Much Do Tank Replacements Cost?
This is one of the first questions we get asked, so here is a simple explanation of the variables involved and the costs you can expect when having your water tank replaced.
