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Get in touch

Whether you have a question about your site, payments, access or something else, find the right Cornerstone team to help.

Day-to-day queries

For any estates or property administration queries, please contact our Estates Service department, managed by our partner, Cluttons.

To help us with your enquiry, please have the following details ready:

  • Your Cornerstone Site reference
  • Your Site Address

Telephone:
0800 084 3454 (Option 2)
Monday – Friday 9:00am – 5:00pm

Email:
estateadmin@cornerstone.network

Address:
Cornerstone Estates, c/o Cluttons LLP, First Floor, Imperium Building, Imperial Way, Reading, RG2 0TD

Emergency contact

Telephone:
0800 084 3454 (Choose option 1)

Email:
facilities.service.desk@cornerstone.network

If you need to contact Cornerstone’s Estates team outside of office hours, please call our Management Centre which is open 24 hours a day, 7 days a week.

Cornerstone operates a business continuity management system compliant with ISO 22301 and assessed by BSI. If a major event or issue is raised, our Incident Management Team will coordinate the response and take the necessary steps to manage the incident and restore normal operations.

Report Site Access Issue

If there’s an issue preventing or affecting access to one of our sites, let us know and our team will look into it.

Report Site Access Issue

Payment queries

For any questions or issues relating to payments, please contact the Cornerstone Estates Service Desk.

Telephone:
0800 084 3454 (Choose option 3)

Email:
estatepayments@cornerstone.network

Selling your site

Interested in selling your site to Cornerstone? Visit our Sell Your Site page for more information, or speak to our Estates team.

Please have your site address and, where available, your Cornerstone Site reference ready.

Telephone: 020 3880 0776
Email: sellyoursite@cornerstone.network

Cornerstone Head Office

If you want to contact Cornerstone directly our Head Office address is:
Hive 2, 1530 Arlington Business Park, Theale, Berkshire. RG7 4SA.