When Do You Need Water Tank Relining?
Over time, Water tanks they can develop leaks, corrosion, or structural damage that affects both the water quality and the safety of the system. That’s where water tank relining comes in. But how do you know when it’s time to consider it?
Let’s explore the signs, benefits, and process of water tank relining.
Signs You Might Need Water Tank Relining
Knowing when to act can save you from costly repairs or water contamination issues later. Here are some common indicators that your water tank may need relining:

1. Rust and Corrosion
If you notice rust forming inside or outside your tank, this is a clear sign that the protective lining has worn down. Corrosion not only weakens the structure of the tank but can also leach harmful metals into your water supply. A relining can restore the protective barrier and extend your tank’s life.
2. Leaks or Drips
Leaks are a major warning sign. Even small drips indicate that the tank’s material is failing. Relining can seal minor leaks without the need for a full tank replacement, saving time and money.
3. Contaminated Water
Discoloured water, unusual smells, or taste changes can indicate that your tank lining has degraded and is allowing contaminants to enter the water supply. Water tank relining ensures your water stays clean and safe for everyday use.

4. Age of the Tank
Most water tanks have a lifespan of 10–25 years depending on the material and maintenance. Even if you haven’t noticed major issues, tanks approaching the end of their expected lifespan should be inspected for relining.
5. Sediment Buildup
If you see an accumulation of sediment at the bottom of the tank, it can be a sign that the lining is deteriorating. Relining helps prevent further sediment buildup and maintains water quality.
Benefits of Water Tank Relining
Water tank relining isn’t just a quick fix—it offers long-term advantages that can protect both your water system and your wallet:
- Cost-effective: Relining is often much cheaper than replacing the entire tank.
- Extended lifespan: A professionally relined tank can last many more years.
- Improved water quality: Prevents contaminants from entering your water supply.
- Minimal disruption: Unlike a full replacement, relining is usually quicker and less invasive.
The Relining Process
A professional water tank relining service, like the one offered by H2O Comply, typically follows a few key steps:
- Inspection: The tank is thoroughly examined to assess its condition and identify problem areas.
- Cleaning: Any rust, sediment, or debris is removed to prepare the surface for the new lining.
- Application: A protective, food-grade lining is applied to the interior, sealing the tank and preventing leaks.
- Testing: After curing, the tank is tested to ensure it’s fully sealed and ready for safe use.
When to Call the Experts
Water tank relining might sound simple, but it’s a task best left to experienced professionals. Attempting DIY repairs can risk contamination or structural damage, potentially costing far more than a professional job in the long run.
If your water tank shows any signs of wear, leaks, or contamination—or if it’s just getting on in years—it’s time to take action. A prompt inspection and relining can save money, protect your water quality, and give your tank a new lease on life.
Keep Your Water Safe with H2O Comply
Don’t wait until small problems turn into costly repairs. H2O Comply provides professional water tank relining services across Kent, ensuring your water supply remains clean, safe, and reliable. Contact us today to schedule an inspection and find out if your tank could benefit from relining.











