DM Chainsaws Ltd began business in 1984. Its founder Dave Moon had worked all his life in farming and tree work, so after he was made redundant he leveraged his mechanical knowledge and started repairing chainsaws and other garden machinery in his back garden. DM Chainsaws Ltd in the West Sussex village of Walberton quickly established a reputation in the area for good service and value for money.

In 1987 the South of England was battered by a major storm. West Sussex suffered considerable damage and thousands of trees were smashed and uprooted. Everybody suddenly needed a chainsaw and Dave, with DM Chainsaws Ltd met that unexpected demand well. It soon became clear that to grow the business further, bigger premises were required. In 1988 DM Chainsaws Ltd moved to its current site down the road to Walberton Place Farm.