One of the men was reported to have been trapped just after 0845 BST in Chirton, near Devizes, according to the BBC.
The other man managed to jump clear of the wall.
Both builders were taken to Salisbury District Hospital.
Ambulance officer David Wilmot, from Great Western Ambulance Service, said: "On arrival at the scene one man remained in the path of the unstable wall so I decided I would need to do a snatch rescue and move the man before any more of the building collapsed."
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