GRP Storage Tanks

Storage tanks for all environments

Your tanks are exposed to tough conditions, inside and out, which is why there's only one reliable choice of material when you need a new storage tank – GRP fibreglass.

Our tanks are built to withstand harsh weather conditions and chemical attack, so we can build your fibreglass storage tanks for all environments.

Durable fibreglass moulded tanks

When your storage tanks leak, you can experience a range of problems from pollution to financial loss – not to mention the prohibitive cost of replacement.

Not only is a fibreglass tank a more cost-effective replacement, but with an indefinite life expectancy it provides the durability your industry needs, while giving you lasting peace of mind.

Manufactured and installed
by Sui Generis

We can design your new GRP tank to fit in a confined space, manufacture it to exacting specifications and assemble it on site for added convenience.

New fibreglass tanks from Sui Generis can be moulded in sections, insulated and assembled on-site by one of our qualified GRP assembly crews.

Get your free tank survey today

If you need to repair or replace any one of your storage tanks, call us today on 01206 798 798 to arrange your free, no-obligation survey by our expert technical surveyors.

A bespoke service, from design to installation...

GRP Fibreglass moulded storage tanks Fibreglass tank mould

We manufacture your GRP tank to your exact specifications, including adding the right resins and additives to make sure it's suitable for its future contents.

GRP Fibreglass moulded storage tanksFibreglass tank

Our expert fibreglass engineers mould it to shape.

GRP Fibreglass moulded storage tanksFibreglass tank assembly

GRP fibreglass has a high strength-to-weight ratio and an indefinite life expectancy.

GRP Fibreglass moulded storage tanksCompleted GRP fibreglass tank

Completed tank for UK delivery.

5 good reasons to choose Sui Generis fibreglass storage tanks...

  • Strength – high strength to weight ratio
  • Flexibility – choice of resistances
  • Quality – weather and impact resitant
  • Cost – long-term savings
  • Service – 90% repeat custom rate

GRP fibreglass moulded storage tank guide

Industry has to be able to store a variety of liquids and chemicals to do its job.

While steel can corrode over time and be expensive to replace, a fibreglass tank has an indefinite lifespan and is more cost-effective than traditional tanks.

GRP fibreglass storage tanks are strong, chemical resistant and weather resistant – making them ideal for industrial use.

They can store large amounts of often corrosive and toxic liquids safely, providing the infrastructure for effluent treatment, water storage, chemical reactions and more.

Read more.

Sui Generis can repair your existing tanks or replace them with custom GRP storage tanks designed and manufactured by us.

What kinds of liquids can your GRP tanks contain?

Sui Generis builds fibreglass tanks for agricultural, water, septic, industrial and commercial applications – which means our tanks perform almost any function, including:

  • Water storage
  • Electroplating
  • Chemical storage
  • Powder coating
  • Chemical reaction vessels
  • Effluent treatment.

Which kinds of tanks can you build out of fibreglass?

Fibreglass can be moulded into almost any shape, which is why we can construct many different types of storage tanks in GRP fibreglass, including:

  • Flat bottom tanks
  • Slope bottom tanks
  • Cone bottom tanks
  • Dish bottom tanks
  • Cylindrical Horizontal tanks
  • Cylindrical Vertical tanks
  • Double-wall tanks
  • Rectangular tanks.

Why choose a fibreglass storage tank?

Because it's the ideal container for your liquids and chemicals.

GRP fibreglass is resistant to wear and weathering.

Depending on what the tank will contain, fibreglass can also be customised with different resins and additives to withstand strong acids and temperatures of up to minus 200ºC.

Moreover, it's more cost-effective than traditional materials like steel – and with almost no maintenance required, you make a double saving long-term.

Are there other benefits to fibreglass storage tanks?

Many. These are just some of their properties:

  • Corrosion proof
  • Chemical resistant
  • Leak free
  • Impact resistant
  • Safe.

Can you give me advice about my storage tanks?

Just call us on 01206 798 798 today to arrange a free site inspection. Our experts will be on-hand to give you all the information you need to get the best tanks for your needs.


  • "Sui Generis fabricated the seating beautifully...They provided us with an in-depth overview to the products on offer and case studies to show how it would work in situ. They understood what was needed and refined the seating to match our requirements. The fibreglass seating was delivered on promised production schedule and the colours were just as described with a perfect finish."

    R Peckham,
    Sui Generis fibreglass bespoke seating manufacture

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  • "Communication was good throughout the design and pre-installation stages."

    M Gaedke, Sui Generis GRP Wave Canopy

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  • "Your quotation, as always, is very competitive (but it's your professionalism and superb build quality that sells it to us!)"

    P Hawtin, Sui Generis bespoke Red Cabinet

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  • "On a personal note, I think suigeneris has some of the nicest and most polite staff I have ever dealt with in all my years of business.

    You have all been absolutely lovely and a credit to your organisation."

    D Moy, Sui Generis bespoke GRP Bund

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ISO 14001
Our accreditationsArmed Forces Silver Covenant

Sui Generis: The market leader in fibreglass mouldings

Sui Generis quality guaranteeQuality guarantee

Our highly competitive work gives you the best quality results every time – every one of our operatives is highly skilled, well trained and takes exceptional pride in what they do. With Sui Generis, you can rely on effective, long-lasting work.

About Sui Generis.

Sui Generis fully CompliantCompliance and accreditations

When you choose Sui Generis to undertake work on your behalf, it always complies with and exceeds the standards required by relevant legislation. We always advise you what the regulations require before we start.

ISO 9001:2008 and accreditations.

Sui Generis health & safety promiseOur health & safety promise

We take your safety seriously, and that of all our people, whether we're at a small factory or a nuclear plant. We always adhere to stringent health and safety procedures at every stage – and comply with your own Heath and Safety policies.

Health & Safety.

Sui Generis satisfaction assuredSatisfaction Assured

Every job we undertake is completed with your satisfaction in mind. We work hard to be the best at every task we tackle – and that's why over 90% of our customers return to us time after time.

Customer Testimonials