We install over 600 UPS systems every year for businesses nationwide. Discover what our clients have to say about their experiences with Carter Sullivan below.

“Thank you so much for your support with today’s job. I think the engineer’s name is Lee – he was fabulous. Very organised and very accommodating when we requested he wait to put the faulty unit into physical bypass – the organisation needed to agree that risk and wanted to delay until 2pm today. I know he needed agreement internally and appreciate that was given. Following the physical bypass and further testing he’s managed to get the UPS back on line and running as it should. Even if the unit was still in a failed state I’d be singing his praises! A very professional and accommodating engineer, we would be very pleased to see him return to GWH should he be assigned any of the upcoming planned work.”

Great Western Hospital
August 2021

“The site contact who oversaw the work last night said that the Carter Sullivan engineers were ‘the best he’s ever seen’. They removed all of the old UPS equipment and batteries and took back all of the packaging materials leaving both comms rooms in a “very tidy state”. It’s not often we get positive feedback like this so I thought I would let you know – please pass this back to Lee and his colleague!”

DWP Lincoln
May 2021

“Site called and asked if you could pass on his comments to the engineers – efficient, extremely polite, clean and tidy, appreciated them wearing masks at all times, he really was genuinely pleased with the way they worked, a huge thank you from me too because you certainly make my life a lot easier when it comes to installation.”

WH Smith
May 2021

“I wanted to say thank you myself for Jamie originally spotting the swollen batteries on the adjacent systems in the room where he is currently working and informing us immediately.

This is especially important as it is people on the end of these units not machines so both Joe and myself express our thanks to Jamie for being so observant and helpful with the situation.”

James Cook Hospital
April 2021