Shopping for an aluminum fence: 1  If the fence encloses a driveway, a driveway gate can cost $1,400-$3,200 for one that opens manually, or an automated ornamental driveway gate can cost $2,000-$7,700 or more.2  With installation, the total cost can be $1,800-$9,000.dditional costs: 1  After the fence path is cleared, the post holes are dug and the posts installed in concrete. 2  Aluminum fencing installs most easily on flat land. 3  Before installing any type of fence, call 811 to have utility companies come out and mark any underground utility lines; or contact local utility companies directly.