Maintenance Plans

NJB Generators Ltd offer a Full Maintenance Service which can be fully customised to your requirements.

Our industry leading Generator Service packages include:

  • 24 hour / 7 Days / 365 days a year Cover
  • Regular service visits (A & B Services available)
  • General Maintenance
  • Full service documentation
  • Recommendations for remedial work
  • Labour costs & Parts chargeable

Generator Service Contracts for standby generators includes two visits per annum, comprising one “A” and one “B” level service

Diesel Generator Maintenance

Our “A” Service Includes:

  • Oil Filter Change
  • Fuel Filter Change
  • Coolant Filter Change (Where applicable)
  • Air Filter Checked & Replaced if necessary
  • Replacement of Lubricating Oil
  • Full System Checks using our Rigorous Checklist
  • Mains Fail Test and Site Load Test run where available
  • Advise of any problems or remedial works required

Our “B” Service Includes:

  • Full System Checks using our Rigorous Checklist
  • Air Filter Checks
  • Coolant System Checks
  • Control Panel & Instrument Checks
  • Off Load Run
  • Advise of any problems or remedial works required

We also offer:


NJB Generators Ltd provide a wide range of flexible Diesel Generator Maintenance packages.

These can be tailored to your individual requirements.
Our highly trained, experienced engineers are available 24 hours a day, 7 days a week.
Whether you require a ‘next day’ service or specified response time, NJB can provide optimum level of cover to suit your business needs.

Contact Us for more information or to make an enquiry about our maintenance services
Call 0117 986 3888

For Enquiries in Devon & Cornwall Please Call 01409 241713