Oil & Fuel Tank Cleaning Service

Fuel tank cleaning is the process of removing sludge, water, sediment and microbial contamination from the interior of a fuel or oil storage tank — restoring it to a clean, safe and serviceable condition. It involves fuel uplift, sludge and residue removal, internal cleaning using detergents and pressure washing, vapour removal and waste disposal. The method depends on tank type, size, access and contamination level.

Over time, water ingress, condensation and microbial growth cause sludge to accumulate at the bottom of fuel and oil tanks. This blocks filters, damages injectors and boilers, degrades fuel quality and shortens tank life. Regular tank cleaning removes contamination before it causes equipment failure, fuel loss or regulatory non-compliance — and is essential before tank inspection, refurbishment, decommissioning or removal.

This depends on the tank type, fuel stored, usage pattern and contamination history. Commercial fuel tanks in critical applications — generators, data centres, hospitals — are commonly cleaned every one to three years. Heating oil tanks may require cleaning less frequently unless contamination is identified during sampling. Britteco can advise on an appropriate cleaning and sampling schedule based on the specific tank and application.

Britteco cleans underground fuel tanks, above-ground fuel tanks, industrial storage tanks, domestic heating oil tanks, commercial fuel storage systems, cylindrical tanks, confined space tanks, water storage tanks and selected chemical tanks. Fuel types covered include diesel, heating oil, kerosene, gas oil, road fuel, engine oil and industrial oils.

Tanks with internal access are cleaned by engineers entering the tank manually using detergents, pressure washing equipment and vacuum sludge removal. Tanks without internal access are cleaned using high-pressure jet washing systems with rotating heads and remote cleaning tools. Large cylindrical tanks may require internal scaffolding where engineers need to work at height inside the structure. The method is determined during the site assessment.

Confined space tank cleaning is required when engineers need to enter a tank internally — particularly for underground cylindrical tanks, large industrial tanks and enclosed chamber systems. All confined space entry works are carried out under strict health and safety procedures: full RAMS, atmospheric gas monitoring, ventilation, full-face respiratory protection with oxygen supply, and a rescue team on standby. Teams of three cleaning engineers plus additional rescue personnel are deployed where site safety requirements demand it.

Yes — many tanks can be cleaned externally without confined space entry, using high-pressure jet washing systems with rotating heads and remote cleaning tools. This is particularly suitable for tanks without internal manholes or where confined space entry should be avoided. The cleaning approach is determined during the site assessment based on tank construction, access and safety requirements.

Yes. Britteco provides domestic heating oil tank cleaning alongside commercial and industrial services. Heating oil tanks accumulate water, sludge and microbial contamination over time — causing boiler filter blockages and reducing fuel efficiency. Regular cleaning extends tank and boiler life and prevents costly breakdowns.

Yes. Britteco can clean water storage tanks as well as fuel and oil tanks. Water tank cleaning requirements, safety procedures and certification differ from fuel tank cleaning — contact Britteco to confirm suitability and discuss your specific water tank cleaning requirements.

Petrol tank cleaning is currently limited within Britteco's standard service range — however specialist capability is being expanded and can be arranged through approved specialist partners where required. Contact Britteco to discuss your specific petrol tank cleaning requirements.

Fuel tank cleaning costs depend on tank size, type, access, contamination level, cleaning method required and whether confined space entry or specialist equipment is needed. Because every project is different, Britteco provides site-specific quotations. Send photos, tank dimensions, fuel type and access details to receive a tailored price.

On completion, Britteco provides a Tank Cleaning Certificate confirming the works carried out. Where applicable, a Gas-Free Certificate, Waste Transfer Documentation and site report are also provided. Documentation requirements vary by project type and can be confirmed at the quotation stage.

Yes. Before any fuel tank can be safely removed, lifted, cut or decommissioned, it must first be cleaned and gas-freed. Remaining fuel must be uplifted, sludge removed, and the tank cleaned to reduce vapours to safe working levels. A gas-free certificate is then issued before any cutting, lifting or transport operations begin. Britteco carries out tank cleaning as part of its full tank removal and decommissioning service.

Use the enquiry button on this page and send photos of the tank, dimensions, fuel or product type, site location and access details. Britteco will carry out a site assessment, confirm the most appropriate cleaning method and provide a site-specific quotation.