Tanks For Everything
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Bunded Oil Tanks

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Bunded Oil Tanks

Bunded oil tanks are used commercially, agriculturally, and domestically, where domestic bunded oil tanks provide a secure and compliant solution for home fuel storage. They’re a safe and cost-effective solution that you can put your trust in. Plastic bunded oil tanks hold 110% of the primary tank's capacity. The manufacturers we use are well-known and trusted brands in the industry, such as Atlas, Atlantis, Harlequin, Deso, Titan and Carbery.

You’ll have a 10-year manufacturer's warranty with our plastic bunded tanks, all of which are compliant with industry regulations like OFTEC and are CE marked by law. We also provide bunded diesel tanks, and cater to a wide range of oils, including HVO fuels and kerosene. We also stock a range of accessories for tanks, consisting of gauges, valves, fittings and more! Established since 2008, we know all about bunded tanks to make sure you’re met with quality and assurance. Our tank sizes range from 340 to 10,000 litres, but please get in touch for a bespoke solution, including options like double-bunded oil tanks.

Harlequin 350 HQi - 350 Litre Bunded Oil Tank

Harlequin HQi bunded oil tanks are Harlequin's entry-level range of bunded tanks and are fully compliant with all applicable fuel storage requirements..

£864.00 (ex. VAT) £1,036.80 (inc. VAT)

Carbery 650RB Bunded Oil Storage Tank

Carbery Bunded Tanks consist of a "tank within a tank". Fuel is stored in the inner tank, whilst the outer tank acts as a failsafe in case of a spill,..

£1,099.95 (ex. VAT) £1,319.94 (inc. VAT)

DESO SL650BT Slimline Bunded Oil Tank

  This bunded oil tank is manufactured by DESO Engineering. Deso Engineering are a UK based manfacturer who offer a 10 year warranty on all their b..

£1,424.00 (ex. VAT) £1,708.80 (inc. VAT)

650 Litre Slimline Bunded Oil Tank - Harlequin 650ITE

Harlequin ITE bunded oil storage tanks are Harlequin's advanced range. All ITEs are supplied with the Harlequin Smart Gauge which allows you to view y..

£1,282.00 (ex. VAT) £1,538.40 (inc. VAT)

Atlas 650 BSA with Watchmansonic and Filter Kit

  Atlas bunded oil tanks are supplied as standard with a complete installation kit, this includes a Watchmansonic Electronic Remote Contents Gauge ..

£1,593.00 (ex. VAT) £1,911.60 (inc. VAT)

Harlequin 650 HQi with FREE Bottom Outlet Kit

  Harlequin HQi bunded oil tanks are Harlequin's entry level range of bunded oil tanks and are fully compliant with all all applicable fuel stora..

£1,192.00 (ex. VAT) £1,430.40 (inc. VAT)

Harlequin UGD1400 Double Walled - 1370 Litre Underground Oil Tank

NEW PRODUCT: A pioneering new addition to Harlequin’s Underground Oil Tank range, the 1400 Double Walled Underground Oil Tank fully complies with a..

£4,175.00 (ex. VAT) £5,010.00 (inc. VAT)

Atlantis R-1000C - 1000 Litre Bunded Heating Oil Tank

  For a limited time we are offering the Atlantis BUP.R-1000C at a specially discounted low price. This 1000-litre bunded oil tank, is suitable for..

£1,323.00 (ex. VAT) £1,587.60 (inc. VAT)

Atlantis R1000S - 1000 Litre Bunded Heating Oil Tank

The Atlantis BUP.R1000S is a 1000-litre bunded oil tank, suitable for kerosene, diesel, water and some other oils. Manufactured to comply with OFTEC r..

£1,423.00 (ex. VAT) £1,707.60 (inc. VAT)

Atlas 1000 BSA SL with Watchmansonic and Filter Kit

  Atlas bunded oil tanks are supplied as standard with a complete installation kit, this includes a Watchmansonic Electronic Remote Contents Gauge ..

£1,665.00 (ex. VAT) £1,998.00 (inc. VAT)

DESO SL1000BT Slimline Bunded Oil Tank

This bunded oil tank is manufactured by DESO Engineering. Deso Engineering are a UK-based manufacturer who offer a 10-year warranty on all their bunde..

£1,615.00 (ex. VAT) £1,938.00 (inc. VAT)

TFE 1000 Litre Slimline Bunded Plastic Heating Oil Tank with Free Apollo Gauge

This 1000 Litre slimline bunded plastic oil tank is our lowest priced 1000-litre plastic bunded oil tank. Although it is low priced it still benefit..

£1,180.00 (ex. VAT) £1,416.00 (inc. VAT)

1000 Litre Slimline Bunded Oil Tank - Harlequin 1000ITE

  Harlequin ITE bunded oil storage tanks are Harlequin's advanced range. All ITEs are supplied with the Harlequin Smart Gauge, which allows you to ..

£1,517.00 (ex. VAT) £1,820.40 (inc. VAT)

Harlequin 1000 HQi - 1000 Litre Bunded Oil Tank

Harlequin HQi bunded oil tanks are Harlequin's entry level range of bunded oil tanks and are fully compliant with all all applicable fuel storage requ..

£1,427.00 (ex. VAT) £1,712.40 (inc. VAT)

Harlequin UGD2500 Double Walled - 2500 Litre Underground Oil Tank

NEW PRODUCT: A pioneering new addition to Harlequin’s Underground Oil Tank range, the 2500 Double Walled Underground Oil Tank fully complies with a..

£4,845.00 (ex. VAT) £5,814.00 (inc. VAT)

Slimline Bunded Heating Oil Tank with free Apollo Gauge and Filter Valve Kit - Diamond 1000 litre

You can store heating oil safely, using the Diamond 1000 litre Super Slimline Bunded Heating Oil Tank. Tanks for Everything has chosen to stock this..

£1,417.00 (ex. VAT) £1,700.40 (inc. VAT)

TITAN ES1000 Ecosafe Bunded Oil Tank

Tanks For Everything supplies TITAN oil storage tanks to Northern Ireland at no additional cost! EcoSafe is the most advanced range of bunded oil t..

£1,773.00 (ex. VAT) £2,127.60 (inc. VAT)

TITAN ESSL1100 Ecosafe Bunded Oil Tank

Tanks For Everything supplies TITAN oil storage tanks to Northern Ireland at no additional cost! EcoSafe is the most advanced range of bunded oil t..

£1,773.00 (ex. VAT) £2,127.60 (inc. VAT)

Harlequin 1100 HQi - 1100 Litre Bunded Oil Tank

Harlequin HQi bunded oil storage tanks are Harlequin's entry level range of bunded oil tanks and are fully compliant with all all applicable fuel stor..

£1,458.00 (ex. VAT) £1,749.60 (inc. VAT)

Atlas 1200 LPBA with Watchmansonic and Filter Kit

  Atlas bunded oil tanks are supplied as standard with a complete installation kit, this includes a Watchmansonic Electronic Remote Contents Gauge ..

£1,678.00 (ex. VAT) £2,013.60 (inc. VAT)

DESO LP1200BT Bunded Oil Tank

This compact 1200-litre low profile bunded oil tank is ideal for locations where windy conditions or limited space is an issue. DESO Engineering offer..

£1,626.00 (ex. VAT) £1,951.20 (inc. VAT)

1200 Litre Low Profile Bunded Oil Tank - Harlequin 1200ITE

Harlequin ITE bunded oil storage tanks are Harlequin's advanced range. All ITEs are supplied with the Harlequin Smart Gauge which allows you to view y..

£1,602.00 (ex. VAT) £1,922.40 (inc. VAT)

Harlequin 1200 HQi - 1200 Litre Bunded Oil Tank

Harlequin HQi is the Harlequin's entry-level range of bunded oil tanks and are fully compliant with all applicable fuel storage requirements. All HQi'..

£1,512.00 (ex. VAT) £1,814.40 (inc. VAT)

1200 Litre Slimline Bunded Oil Tank - Harlequin 1225ITE

  Harlequin ITE bunded oil storage tanks are Harlequin's advanced range. All ITEs are supplied with the Harlequin Smart Gauge which allows you to v..

£1,581.00 (ex. VAT) £1,897.20 (inc. VAT)

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What to know before buying a bunded oil tank?

  • Capacity: You need to consider what size tank you’ll need to hold your oil. 
  • Maintenance: Make sure you know what maintenance your tank will need before you buy it. 
  • Environmental: Does you tank meet the local regulations for the protection and safety of the environment? 
  • Installation: If you think about how much space you need, you can start considering where your tanks will be housed. Any approvals required and logistics of installing the tank are factors to consider too. 
  • Budget: What will the long term costs be? Take some time to compare different prices to stay within your budget. 

FAQ's

A bunded oil tank has two skins. The inner one holds the fuel and the outer is there in case of any leakages, acting as a failsafe to prevent fuel loss. The outer tank or bund holds at least 110% of the primary tank’s capacity.

They are a safe means of storage. Fuel can be dangerous – it can cause fires and environmental problems – so avoiding leaks is important.

Depending on the laws and available area, they are mostly installed above ground. Below ground tanks must be specifically designed for the purpose. All oil tanks must be installed by a competent person in line with OFTEC regulations, British Standards and LABC regulations. At Tanks For Everything, we can provide the accessories and any fittings needed to complete the installation of your tank.

They are useful for several reasons:

  • They stop leakages – The outer tank makes them more effective than a single layered tank. This is a safe solution for the environment, so oil doesn’t escape and pollute the ground or water.
  • They’re cost efficient – At first, buying a bunded tank can be expensive, but in the long run they save money as their design life exceeds that of a single skin tank.

Some people install a high fence or cage around their bunded tank to make theft more difficult. CCTV cameras can also act as a deterrent. If theft is a major concern, bunded steel oil tanks are a more secure option.

760mm is the closest it can be. If you’ve put a screen around your tank to stop thieves, then your tank can’t be closer than 600mm from this.

Your tank must be at least 1.8 metres away from non-fire rated structures, buildings and their eaves. It should also be this distance away from liquid fuel appliance flue terminals.

Bunded tanks are usually made from durable plastic such as medium density polyethylene, which is hard-wearing and resistant to splitting. Steel bunded tanks are also popular as they’re long-lasting, weather-resistant and more secure. At Tanks For Everything, we offer both materials in a range of sizes and designs.

The tank’s base should extend at least 300mm more than its widest points, and it must be fully supported.

If safe, stop the leak and use sand, earth, or cat litter to cover the spill. Ensure no oil enters drains or water sources. If it does, report it to the UK incident hotline at 0800 80 70 60. Insurance may not cover oil spills, so prevention is essential.

Contact an OFTEC registered engineer who can carry out a full tank clean. Pumping water out yourself is difficult and contaminated water must be disposed of correctly. A professional will ensure it’s done safely.

Your tank should be serviced yearly by an OFTEC engineer. You can also carry out regular inspections yourself by checking for cracks, bulging or debris – many people do this monthly.

Check for leaks such as wet patches around the tank. Warm weather can cause plastic to expand and sometimes split. However, some smell can be normal as oil vents in hot weather. Call a professional if unsure.

Yes, AdBlue can be stored in bunded tanks made from polyethylene or stainless steel. It must be kept out of direct sunlight and stored between 0°C and 30°C. We also offer dedicated AdBlue storage tanks.

Yes – they are checked and maintained to industry standards. They also meet regulations such as BS799, PPG2 & PPG26, Oil Pollution Prevention Guidelines and are CE marked by law.

Non-Domestic Tanks: For oil storage over 200 litres, bunded tanks are a legal requirement.

Domestic Tanks: Bunded tanks may be required if storing over 2,500 litres, near water sources, or if used for non-single-family dwellings.

Any non-domestic tank over 200 litres must be bunded. For domestic tanks, a risk assessment is needed if storing over 2,500 litres, near drains or water sources, or if oil is used for buildings other than single-family homes. For more information, visit OFTEC.

Thursday 4th June 2026
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