Being a solutions provider and maintaining Business Continuity For Over 30 Years.

Since the late 80’s Constant Power Services Ltd excelled in providing support and solutions 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.

Finding smarter ways to help you manage your operation is always at the forefront of our minds.  As a result, our range of services is constantly evolving to meet the growing demands of our customers.

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, to generators and switchgear, our turnkey offers and 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.

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Our Offices

Letchworth – Head office

Address

Riello House, Works Road
Letchworth,
Hertfordshire,
SG6 1AZ

Telephone: +44 (0) 330 1230 125

Fax: +44 (0) 1462 422 754

Email: sales@constantpowerservices.com

London Office

Address

100 Cannon Workshops,
3 Cannon Drive,
London,
E14 4AS

Telephone: +44 (0) 207 0680 286

Email: sales@constantpowerservices.com

What Our Customers Think

You don’t have to just take our word for it…

Based on 12 reviews.
Geoff Craddock
Geoff Craddock
8. December, 2020.
This is a high quality versatile UPS but the documentation and supplied software is not good enough for inexperienced users. My application, providing safe shutdown of the office PC in the event of mains power interruptions, took several days of experimentation to configure and the manual omits much key information.
Steve Day
Steve Day
20. November, 2020.
Arrived on time and completed work to satisfaction. Engineer friendly and approachable.
Direction Fire Ltd
Direction Fire Ltd
7. September, 2020.
CHRIS KEHOE
CHRIS KEHOE
7. September, 2020.
Outstanding service given by the whole team from start to finish. Highly recommend these guys.
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7. September, 2020.
Very helpful and understanding of the situation. Good advice and friendly.
Leigh Bruce
Leigh Bruce
4. September, 2020.
Excellent Service from Kevin and his team as usual.
Chris Kehoe
Chris Kehoe
5. August, 2020.
At fairly short notice we required a new UPS system installing in our building. We called CPS and from start to finish, the service was second to none from communication, delivery and installation. I would have no hesitation in recommending CPS for your UPS needs. Chris Kehoe Lead Engineer One Snowhill, Birmingham
Paul McNally
Paul McNally
30. June, 2020.
Absolutely amazing company , providing the top end of customer service! We work at a critical healthcare establishment, and had an urgent issue with our UPS. We contacted CPS and their engineer calmly talked us through the issue. He was currently stationed in Glasgow, and to give us confidence, he was willing to travel all the way to Liverpool to solve the issue and carry out the physical switching. The engineer arrived within 4 hours and presented himself with impeccable customer service skills. Once he attended the issue, he calmly resolved the issue , and the system was back online without any interruption. I cannot underestimate the importance of having such a reliable and competent company on the books. What an amazing service!!!! Many Thanks Paul McNally Vinci Facilities
Brian Feehily
Brian Feehily
11. June, 2020.
Bryan Davies
Bryan Davies
27. May, 2020.
Great Company to work with would highly recommend

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