Generator Servicing
Without regular maintenance from someone who knows what they’re doing, a generator can let you down at the worst possible moment. Our service and maintenance contracts cover you all year round, day and night, and if something goes wrong we’ll be on site within 4 hours.
Power Security Generators has been servicing, maintaining, repairing and installing generators across the UK for over 30 years. Our work is overseen by Jim Shaw, a chartered engineer, and our Service Director Phil Clayden. Wherever you are in the country, our engineers and support team can look after your generators. No job is too far.
If you think your generator might not be up to the task, or you just want a service provider you can rely on that won’t cost the earth, get in touch.


We look after everything from a single unit to large portfolios spread across dozens of sites, and we’ll help you pick the right package. A lot of our work is with Facilities Managers, Operations Managers and business owners who need their generators ready to go at all times. As well as ongoing contracts, we do one-off repairs when a generator has broken down and you need an engineer out quickly.
We’ve worked on generators from just about every manufacturer, including Perkins, Inmesol, CAT, Kohler SDMO, FG Wilson, Volvo Penta and Pramac, so the chances are we’ve seen a set like yours before.
We service generators across a lot of different sectors, including healthcare, data centres, retail and hospitality, commercial offices, public services and manufacturing. If your business depends on standby power, we know the trouble it causes when it fails.
Industry Leading Generator Service Plans
Our service packages suit every kind of diesel backup generator. Regular attention keeps running costs and the risk of a breakdown down. It also helps protect your manufacturer’s warranty and keeps you on the right side of your insurance and health and safety obligations.
Our engineers will build a maintenance plan around what you actually need, and we’ll book visits in at a time that works for you, so there’s as little disruption as possible.


Why a Generator Service and Maintenance Contract is Important
If you own a generator but haven’t got a service plan in place, there’s a real chance it won’t be ready when you need it. Like any engine, it needs looking after. That means oil and filter changes, topping up the coolant, and keeping the battery in good shape.
It’s a bit like leaving a car on the driveway for months without starting it, or never bothering to get it serviced. Your backup generator is no different. When the mains goes down, the set has to start first time, and that comes down to a healthy starter battery, clean oil and fuel filters, and the right oil and coolant levels.
Look after your generator properly and, together with your UPS, it’ll give you dependable backup for the systems you can’t afford to lose. Let it slide and a routine power cut can turn into expensive downtime, lost trade and, in some settings, a safety problem.
Full Range of Generator Servicing Packages
We offer a range of generator maintenance options to ensure that your backup supply carries you through a power failure:
We can also sort out load bank testing as part of your plan. It’s worth doing on sets that normally run at low load, to make sure they’ll still cope when they’re asked to run flat out. Not sure which package suits you? Give us a call and we’ll work it out together.
For all generator servicing or repair enquiries, please contact us today and we’ll work together to make sure you get the service you need.
Why Choose Us?

Frequently Asked Questions
Contract customers get a guaranteed 4-hour emergency response. We’ll always try to help over the phone first, then get an engineer out to you as quickly as we can.
All of it. Wherever you’re based in the UK, no job is too far.
Yes. We work on all the main brands, including Perkins, Inmesol, CAT, Kohler SDMO, FG Wilson, Volvo Penta and Pramac, along with plenty of others.
A typical visit covers oil sampling and changes, filter changes where needed, coolant and oil-level checks, a battery check, running the set (on load where we can), and checks on the engine oil pressure and temperature shutdowns. You’ll get a written report afterwards. Exactly what’s done depends on your generator and the package you go for.
Most standby generators should be serviced at least once a year, and twice is better. If your set works hard, or you rely on it for something critical, it may need seeing more often, or servicing by running hours (say, every 300 hours). Our standard contract covers two visits a year, which keeps most sets reliable and ready to go.















