The quickest way to paint a long fence is to spray it. While you could use a handy electric spray gun, you’ll be constantly refilling the tank. An airless spray gun, that sucks paint directly from a paint tin, is much faster. The hiring costs for a weekend are about $250, so it’s only worthwhile for large jobs. You’ll be so fast, it’s worth doing a few other jobs such as a neighbour’s fence, the shed or even your house!