An Upminster firm has played a key role in helping Sir Ranulph Fiennes set out on his coldest ever expedition.

The explorer is due to leave England today, to attempt the first ever crossing of the Antarctic during the polar winter.

He will be using a unit made by St Mary’s Lane firm, Upminster Containers Limited, which contain areas to sleep and house science workshops.

Owner Maria Hadden said: “We’re all very excited. We’ve never been involved in such a high profile profile project before.”

Sir Ranulph made a secret visit to the firm’s depot in April where he met staff.

“He was lovely, a very personable, he had a long chat with my son.

“He’s going to be travelling in up to minus 90 degree temperatures, mostly in the dark. It was nice to be involved but none of us would actually want to be there.”

For more about the expedition visit www.thecoldestjourney.org.