Electrical services are a vital part of everyday life which we rely on to power our homes, businesses, gadgets and, for many nowadays, even our vehicles. ONCO SES offer a complete range of electric services, from installation and maintenance to testing and inspection to keep you powered up and running smoothly.


Tailored Solutions for Your Unique Needs

ONCO SES has decades of electrical experience and has offered a comprehensive range of electric services across every type of sector. As NAPIT (National Association of Professional Inspectors and Testers) approved electricians, we are fully qualified to undertake all types of electrical services.

Our engineers are fully trained in health and safety (CHAS – Contractors Health and Safety Assessment Scheme) and carry PAL (Powered Access Licence) cards for working at heights to guarantee all our electric services meet all legislation and regulations. Whether your property is commercial, industrial, public services or private domestic we are the team to trust for all your electrical service requirements.

Suppose you’ve got electrical items malfunctioning, or you’re not sure when a testing inspection last took place for your property. In that case, ONCO SES is the team to trust to ensure you’re powered up safely and fully compliant with regulations.

Our Services

We offer a comprehensive range of electrical services to cover every property’s electric needs, from installation to testing, inspection and maintenance.


New properties require complete electrical wiring, or an extension or additional feature of a building will require new electrical installations and ONCO SES excel at ensuring the new electrical services are fitted in a way that guarantees longevity and safety whilst preserving the aesthetic of your property. We can design bespoke installations for each property’s needs.

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Our electrical maintenance service involves the systematic upkeep, inspection, testing and repair of electrical equipment and systems to ensure their safety, performance and longevity. ONCO SES is dedicated to preventing downtime and ensuring your property meets regulations while prolonging the lifespan of your electrical installations.

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Testing and Inspections

Depending on the people who use your property, your electrical systems will require regular inspection and testing to remain compliant and safe for all who use the building. ONCO SES has teams of skilled technicians who can keep your systems up to date with regulations, and we provide reports and recommendations of any updates or upgrades that might be needed.

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Don’t Just Take Our Word for It

When you’re looking for a contractor, you want to know they’re the one you can trust.
Read what our previous clients have to say about our services, for unbiased opinions you can rely on.

Need Help?

Speak To Our Friendly Team

Our expert and friendly team is more than happy to chat with you about what you require for your electrical services. Get in touch to find out how we can help you today.