Maintaining Business Continuity For Over 30 Years

Since the late 80’s Constant Power Services Ltd excelled in providing support to businesses seeking quality uninterruptible power supplies, installation and aftercare. We appreciate the complexities of a specification, the time constraints on finalising a project and understand that it can all change in a second, which is why we are the best support for you.

Constant Power Services offer a range of products from smaller 700VA Uninterruptible Power Supplies to 6.4MVA systems, containerised 252kW units for hire or purchase,  generators and switchgear.  Our turnkey solutions are tailored to your requirements.  Working with our customers requires great communication, respect and ownership of a task, a solution, or in some cases a problem to fix.

This is something Constant Power Services prides itself on and that is why support is integral to our business and communication, respect and ownership for our internal values, as they come so naturally to us. Some of our clients have been with us for over 16 years.


A trusted partner

and solutions provider

Looking for a dependable UPS delivery partner goes beyond the initial supply and installation works.

Your UPS system is about more than just hardware and we understand that. Our team of experts will work with you to make sure your entire power strategy is fit for purpose for your business.

If you are looking for an uninterruptible power supply for a new building, inherited a UPS from a new acquisition or simply wanting to upgrade to a new system so that you can get the service and support you require, Constant Power Services is the Just do certainty company for you.

Some of our products

Constant Power Services are a subsidiary of the Manufacturing group Riello Elettronica and therefore support the Riello product range.  In addition to this we also supply Generators, LV switchgear and our own Multibox rental solutions.

Sentinel Dual (Low Power)

Sentinel Dual Low Power (SDH) is a versatile UPS designed to deal with non-linear loads. It’s a proven solution for Edge applications, blade servers, VoIP equipment, IT networks, electro-medical devices, emergency lighting, and security/safety systems.

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Master HE

Master HE (MHE) combines maximum protection with exceptional efficiency in mission-critical applications such as data centres, electro-medical devices, telecoms networks and security systems. Can operate with or without a neutral connection. 

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Sentryum is our latest transformerless ONLINE UPS designed to maximise availability, efficiency and performance in small data centres and similar mission-critical applications. Delivers 96.5% efficiency and unity power factor to minimise losses.  

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What Our Customers Think

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