Cornerstone owns and operates one of the UK’s largest telecom sites portfolios, supporting our customers to maintain and keep their mobile networks performing at peak availability all day, every day. Supporting the entire range of site types we cover the whole of the UK with microcells, small cells, street-works, greenfield and rooftop installations.


“Managing passive services across 15,500 UK sites requires a proactive approach from Cornerstone and our key maintenance partners. With mobile services becoming increasingly ubiquitous for consumers and businesses as 5G grows, it is essential that our passive services are available 24x7. Through smart, sustainable site management, we maximise availability while minimising disruption for our landlords and customers.”

Below you can explore our range of maintenance support we provide to customers. This includes reactive, emergency and planned maintenance support, as well as our compliance and asset management solutions.