How Often Should You Service a Generator? A Complete Guide for Businesses 

For businesses in the UK, having a reliable power source is essential. Generators provide vital backup power when the mains fail, helping avoid costly downtime. However, a generator only works well if it is properly maintained. This guide explains why generator servicing matters, how often it should be done, and what business generator maintenance usually involves. Understanding this will help you keep your power supply secure and comply with safety rules. 

Generator Service and Repair. 

Why Regular Generator Servicing is Essential for Businesses 

Regular servicing keeps your generator ready to operate in an emergency. It helps find faults early and prevents breakdowns that could stop your business from running. Servicing also makes sure your generator meets health and safety standards, following HSE guidance on equipment maintenance. This protects your staff and meets legal requirements. Routine maintenance can also extend the life of your generator, giving better value over time. 

Benefits of generator servicing: 

• Stay compliant with legal and safety rules 

• Improve safety for your people and property 

• Reduce risk of unexpected power failure 

• Save money by avoiding costly repairs 

Planned preventative maintenance is key in facilities maintenance for generators. It ensures reliable backup power for your business. 

How Often Should a Generator Be Serviced? 

A common question is: how often should I service my generator? Most businesses should have at least annual generator servicing to keep things running smoothly. This covers essential checks and servicing tasks. 

If your generator is used heavily or is critical for safety, you may need servicing more often, such as every six months or quarterly. Always check your manufacturer’s instructions for the correct intervals. Brands like Pramac, Teksan, and Himoinsa provide detailed service schedules. 

Following a planned maintenance schedule for business generator maintenance helps reduce risks and improves performance. 

What Does a Generator Service Involve? 

A typical generator service will include: 

• Inspecting engine and electrical parts thoroughly 

• Changing engine oil and filters to protect the motor 

• Performing a commercial generator inspection designed for business use 

• Load testing a generator to check it can handle expected power demands 

• Checking safety systems such as alarms and emergency stops 

• Testing control systems and panels to ensure proper operation 

For more details, see our Generator service and repair page. 

Planned Preventative Maintenance for Generators 

Planned preventative maintenance (PPM) means carrying out regular checks and servicing before problems arise. This is especially important for businesses where power cannot be interrupted, such as hospitals or data centres. PPM helps keep standby generators in good working order so they are ready whenever needed. 

Standby generator maintenance through PPM reduces the chance of failures and ensures your generator lasts longer. 

FAQs About Generator Servicing 

How often should a generator be serviced in the UK? 

UK guidance suggests at least annual generator servicing. Some businesses may need more frequent checks depending on use and manufacturer advice. It also helps meet safety laws. 

What does a generator service include? 

A service covers inspections, oil and filter changes, load testing, safety system checks, and control system testing. 

How long does a generator service take? 

It usually takes a few hours depending on generator size and condition. 

Can I service my own generator or do I need a professional? 

Basic checks can be done by owners, but professional servicing is recommended. This ensures safety, compliance, and maintains your warranty. 

Book a Generator Servicing Package Today 

Keep your business powered and compliant with our expert generator servicing packages. We offer tailored maintenance plans to meet your specific needs, reducing downtime and costs. Get in touch with us today to find out more.