GRP Tank Repair
Nationwide Water Tank Lining Experts

GRP Tank Repair

WRAS Certified & DWI Listed
20 Years In Business

GRP tanks can become badly eroded and this can leave you to think that you need to fit a replacement, however, our plastic water tank repair service can solve all of your problems. In over 25 years we have rarely come across a plastic tank that we have not been able to repair.

Our plastic tank repair service involves applying our ACOTHANE DW coating to your tank to provide much better resistance and protection. The glass reinforced plastic tank service comes with a 10-year guarantee so in the unlikely event of a problem we will be on hand to provide quick solutions to get your tank back up and running.

For further information on GRP tank repairs, contact us now or enquire for a quote today.

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For more information on our services, call us on 0800 772 3367 today!
Covac Leaking GRP Tank

In GRP water tanks, a common problem that you may face is the deterioration of the mastic, which can lead to the leaking of water. This can cause you to lose a significant amount of water and damage the overall functioning of your tank. Osmotic blistering along with air-filled cavities and fine cracks can also cause a breakdown of your GRP substrate. However, fear not, as our Covac Leaking GRP tank repair service is simply second to none and is bound to get your GRP tank up and running back to its usual self.

If your GRP tank is showing signs of cracking or a breakdown of the substrate, it will allow bacteria and micro aquatic organisms to harbour and promote their growth. In addition, corrosion can become a major problem for water tanks which have not been lined properly. Corroded surfaces will provide the nutrients for harmful bacteria like legionella to develop, so it is crucial that if any of these problems arise in your GRP water tank, that you have your structure repaired and relined sufficiently.

This will ensure that your water retaining structure will be protected to prevent future problems and provide a long term solution. If you are experiencing a leaking GRP tank, be sure to opt for our Covac leaking GRP tank repair service today by filling our contact form below.

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For more information or help and advice, please don’t hesitate to get in touch by filling out the form below or calling us. A member of our friendly and experienced team will be happy to help you.


How can you tell if you need GRP tank repair?

The main symptom of a GRP water tank that needs repair is leaking. Leaking can occur as a result of micro-cracks on the surface of the tank and worsen over time. The best way to prevent micro-cracks in GRP tanks is to install high-quality water tank lining, which will create a barrier between the surface and the elements inside the tank.

How long does GRP tank repair take?

The duration of a GRP tank repair depends on the size of your tank and the level of damage it has sustained. Here at COVAC, we ensure to complete all GRP tank repairs quickly and efficiently to keep your business running smoothly and uninterrupted. If you’d like to find out how long your GRP tank repair might take and receive a quote for our services, please don’t hesitate to contact us now!

Why do GRP tanks degrade?

GRP tanks often degrade due to fluctuations in temperature and pressure inside and outside the tank, which can put stress on the tank and create weak spots susceptible to cracking. Although the degradation of GRP tanks is natural, the quality of the materials used to construct the tank can influence the lifespan of the tank and encourage deterioration.


  • Cert No. 22946

  • Cert No. 22946