Top storage tip #47:

Most self storage companies won’t accept cash for security reasons. Make sure you have alternative means of payment when signing up a unit.

The Self Storage Blog

Here are all the self storage centres listed for County Durham. This information comes from the database held by Storage.co.uk, which covers all known, major self storage facilities in the UK.
If you are looking for storage close to the border of County Durham, try looking at the neighbouring area too. For a list of the self storage facilities closest to you, type your postcode into the “Find Self Storage” or “Get a quote” functions on this website.