A swing gate that drags on the driveway, will not latch, or swings open on its own has almost always shifted at the hinge or post. We re-hang, re-plumb, and re-balance swing gates so both leaves meet cleanly in the middle and the latch catches every time.
Many Milton swing gates lean because the post footing has heaved over successive freeze-thaw cycles in the area's clay soils. A gate that latched fine in July can bind by January. We check whether the fix is a simple re-hang or whether the post itself needs resetting below the frost line so the problem does not return next winter.
Call now and we'll get a technician out to diagnose and fix it.