Fuel Polishing Services (UK)

Contaminated diesel is one of the biggest causes of generator failure. Over time, water, sludge, and microbial contamination (“diesel bug”), build up in fuel tanks, leading to costly breakdowns and unreliable backup power.

4-Hour Engineer Dispatch*

365 Days a Year

24 Hours a Day

Keep Your Fuel Clean, Reliable, and Ready When You Need It Most


Contaminated diesel is one of the biggest causes of generator failure. Over time, water, sludge, and microbial contamination (“diesel bug”), build up in fuel tanks, leading to costly breakdowns and unreliable backup power.

Our fuel polishing service removes these contaminants, restoring your fuel to a clean, usable condition without the expense of a full fuel replacement.

Why Choose P&I Group for Generator Load Bank Testing?


  • UK-Wide Mobile Service
    Our engineers deliver on-site fuel polishing across the UK with fully equipped mobile units.

  • Fast & Cost-Effective
    Save significant costs compared to replacing stored fuel by restoring what’s already in your tank.

  • Trusted Specialists
    With decades of experience in generator support, we’re trusted by industries including healthcare, utilities, data centres, and marine operators.

  • Complete Fuel Care
    Beyond polishing, we provide fuel tank cleaning and diesel bug removal, keeping your stored fuel in peak condition.
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Our Fuel Polishing Process

Assessment

We test your stored fuel for water, microbial contamination, and particulates.

Filtration & Separation

Our polishing rigs filter your fuel multiple times, removing water, sludge, and diesel bug.

Tank Cleaning (Optional)

If required, we also clean your fuel tank to prevent recontamination.

Final Testing

Your fuel is retested and certified as clean, ensuring compliance with industry standards.

Optional Remedial Action

 Identified issues? We can follow up with maintenance, calibration, or more in-depth diagnostics.

Click on the brochure to download!

A complete overview of our services, accreditations, and commitment to uninterrupted power.
Image
CHAS
NICEIC
Supply Chain sustainability school
Achilles UVDB
CQS 18001
Cyber Essentials Plus
PPC
CQS 14001
Riello Service Partner
ISO 9001
Safe Contractor
Constructionline Gold
AMPS
Oftec

Benefits of Regular Fuel Polishing


  • Protects Generators & Equipment – Prevents clogged filters, injector damage, and unplanned downtime.

  • Prevents Diesel Bug – Removes microbial growth before it spreads and damages your system.

  • Extends Fuel Life – Keeps stored fuel viable for years, reducing replacement costs.

  • Compliance & Peace of Mind – Helps you meet insurance requirements and safety regulations.

  • Environmentally Responsible – Avoids unnecessary disposal of usable fuel.

Testimonials


Very pro-active, when dates are moved, they seemed to do all they could to reposition to meet the streamlined targets, which were achieved. Seemed to conduct themselves in a very professional manner, which made our lives a lot easier, all the way from RAMS to O&M. All in all, very pleased with P & I and look forward to working together in the near future. I would recommend them to neighbouring companies.


Ben Jennings
Electrical Director, 
Logistical Building Services Ltd

P & I are a highly efficient and professional company of whom we have worked closely with for many years.


Lee Norman
Compliance Manager, 
Rapid Response Solutions Ltd

We have found P & I to be very helpful from design concept through to delivery and commissioning of projects. We will continue to use P & I, our 1st choice supplier of generators and UPS solutions.


James Carter
Project Manager, 
DH Group

A very professional and well-organised company. The installation itself is outstanding with great communication throughout. Would highly recommend to anyone.


Greg Cheshire
Quadrant Court

Book Your Fuel Polishing Service Today


Don’t risk downtime or damage to your equipment. Arrange a fuel polishing service with P&I Group and keep your stored fuel clean, compliant, and reliable.

Call us now: 02392 783450
Email: info@pandigroup.co.uk

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