Fuel Tank Manufacturer UK – FAQs

At OTS Group, we know that choosing the right fuel storage partner is an important decision. Below we’ve answered some of the most common questions about our role as a UK fuel tank manufacturer and the services we provide.

Everything you need to know about OTS Group

OTS Group Ltd is one of the UK’s leading fuel tank manufacturers. Founded in 1971 and based in Gloucestershire, we specialise in the design, fabrication, installation, and servicing of bunded steel fuel tanks, slab tanks, and bespoke fuelling systems. We support industrial, commercial, and government clients nationwide with a complete end-to-end service.
There are three key reasons:
1. Proven expertise – Over 50 years of experience and ISO 9001 certification.
2. Complete service – From design and manufacture to maintenance, decommissioning, and emergency support.
3. Compliance and safety – All work delivered to UK standards, including OFS T200, DSEAR, ADR, and GPP2 guidance.
We also pride ourselves on our skilled workforce and nationwide reach, meaning clients get both reliable engineering and responsive service.
Our tanks and services are used across a wide range of UK industries, including:
Yes. Our engineering and service teams operate across the UK, providing both planned works and 24/7 emergency response. Wherever your site is located, OTS can deliver tanks, carry out installation, and provide maintenance or environmental support.
OTS Group is ISO 9001:2015 certified and an RDCO (Registered Dealer in Controlled Oils). Our tanks and services comply with key UK and EU standards, including:
- OFS T200 (OFTEC)
- Control of Pollution (Oil Storage) (England) Regulations 2001
- DSEAR 2002
- ADR for fuel transport
- CIRIA C736
- BS 799-5:2010
- ATEX Directive 2014/34/EU and UKEX 2016
We are members of Constructionline, the Fuel Experts Association, and OFTEC.

About OTS Group

OTS designs and fabricates a wide range of high-quality steel fuel tanks, built to meet compliance standards and tailored to operational needs:
- Bunded steel fuel tanks – secure double-walled tanks for vehicle refuelling and bulk storage.
- Wet depot tanks – large-scale storage solutions for transport depots and logistics hubs.
- Slab tanks – low-profile, space-saving tanks ideal for sites with restricted headroom.
- Sustainable fuel tanks – designed for compatibility with HVO, GTL, and biofuels.
- Drop-in fuel tanks – pre-fabricated tanks designed for quick installation into existing sites.
- Tank hire – short and long-term options with pumps and dispensing equipment.
- Portable fuel tanks – mobile tanks designed for flexible, temporary fuelling needs.
- Leachate tanks – engineered solutions for landfill and environmental applications.
- Fuel management systems – EasyFuel+ and other systems for secure, efficient fuel use.
- Installation and commissioning – safe, compliant site setup and testing.
- Project management and bespoke system design – end-to-end support for complex or tailored fuel storage projects.
Yes. Our engineering team specialises in bespoke designs, from space-saving slab tanks to complex multi-tank fuelling systems. We work closely with clients to ensure every build meets operational and compliance needs.
We manufacture tanks from high-grade steel, with bunded construction for environmental protection and compliance with UK regulations. Options are also available for sustainable fuels such as HVO and biofuels.
OTS manufactures and supplies tanks ranging from small portable units to large-scale storage systems exceeding 100,000 litres, tailored to project requirements.

Fuel Tank Manufacturing

Tank Installation

Lead times vary depending on specification, but standard tanks can often be delivered and installed within weeks. For urgent requirements, we offer rapid deployment from stock and hire tank options.
Yes. Our EasyFuel+ systems and autom atic tank gauges can be fitted to new or existing tanks, giving you real-time data and secure fuel control.

OTS delivers a complete range of services covering the full lifecycle of a fuel tank, from installation to end-of-life decommissioning:
- Service inspections – one-off or routine inspections to identify issues early and maintain operational safety.
- Maintenance and PPM – planned preventative maintenance to extend tank life.
- Fuel pump maintenance – repairs and servicing for all major makes of pumps and dispensers.
- Non-destructive testing (NDT) – structural inspection to assess tank integrity without invasive procedures.
- Tank and bund wall lining – refurbishment and protective coatings to prolong asset lifespan.
- Environmental services – bund and interceptor cleaning, fuel and waste management, hazardous waste removal, and compliance measures.
- Tank cleaning and interceptor cleaning – removal of sludge, water, and contaminants.
- Fuel sampling and testing – laboratory analysis to check quality, compliance, and usability.
- Fuel polishing – removal of water, sediment, and microbial growth to restore fuel quality.
- Fuel uplift and disposal – safe transfer and recycling of surplus fuel.
- Industrial cleaning – high-vacuum and jetting for tanks, interceptors, and plant.
- Tank decommissioning – cleaning, gas-free certification, and removal or safe decommissioning in place.
With regular maintenance and servicing, a high-quality bunded steel fuel tank can last 20–30 years. Lifespan depends on usage, environment, and whether preventative maintenance such as tank cleaning is carried out.
Most tanks should be inspected annually as part of Planned Preventative Maintenance (PPM). Regular servicing helps extend lifespan, prevent fuel contamination, and ensure compliance.

Tank Servicing & Maintenance

Decommissioning & Environmental Services

Yes. OTS provides complete decommissioning services, including cleaning, gas-free certification, and removal or safe closure in place. We also manage fuel uplift and waste disposal via our licensed facilities.
Yes. Our team carries out licensed collection and processing of hazardous by-products, with full compliance to UK waste legislation and ADR transport requirements.
Yes. OTS operates a 24/7 emergency response service, providing rapid nationwide support for fuel leaks, tank failures, and environmental incidents.

Sales & Support

You can contact our sales team on 01386 853409 or email sales@otsgroup.co.uk. We’ll discuss your requirements, provide advice on the most suitable solution, and prepare a clear, competitive quotation.

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