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Welcome to RMD - Home of UPS Power Supply


Robert M Donaldson Ltd is an independent specialist with more than 30 years of experience in power protection, cooling solutions, and IT services. RMD is one of the few UK companies that can survey, supply, install, and maintain UPS and cooling systems.

An uninterruptible power supply (UPS) provides backup power for your critical electrical equipment should your primary power source fail or a significant drop or surge in voltage occur. Our UPS battery systems ensure that your essential equipment is protected and continues to function even in an emergency.


Experienced UPS installation and maintenance

With over two decades of UPS experience, ​RMD’s team of dedicated and experienced customer service advisors and manufacturer-accredited engineers ensure the smooth installation and running of critical infrastructure for our valued customers. 

RMD works in partnership with a wide variety of customers, manufacturers and suppliers throughout the UK. ​RMD is a trusted partner in the public and private sector, offering globally recognised brands and an excellent level of in-house service.


Efficiency and expertise


As a highly experienced UPS company, our team provides a full range of services with an efficient and professional approach. UPS installation, maintenance, battery replacement, power audits and site surveys can all be expertly carried out by our engineers. 


​If you are looking for a UPS solution or advice on your current system, get in touch with our team and we'll be happy to help.


Call 01259 219 362 or email us at

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COOLING, Datacentres & Other Power 


Network Monitoring

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