The purchase price has not been disclosed.
The deal means that Ainscough Crane Hire now has 29 depots.
Ainscough managing director Neil Partridge said: “I am delighted to announce our successful acquisition of West Country Crane Hire – the acquisition truly completes our national network. The Plymouth site will operate as an Ainscough depot immediately, and we look forward to working with employees, customers and suppliers.”
Mr Metters said: “My wife and I have enjoyed running the business, and we are delighted to be passing it into safe hands.”