The biggest number on any fence quote is footage. Walk your property line, or look at your plat, and you'll have a rough idea before anyone comes out. Corners, grade changes, and trees along the line all add labor, so a measured quote is always more accurate than a phone estimate.
Material is the next factor. Wood privacy fencing is usually the most budget-friendly way to get full privacy. Vinyl costs more up front but skips staining. Aluminum works well for pools and front yards where you want a clean look without blocking the view, and chain link is the practical choice for long runs.
Gates cost more than panels of the same width, because they need heavier posts, hinges, and latches. Plan gates where you actually walk and where the mower needs to get through, and make drive gates wide enough for a truck if you'll ever need one.
When you compare bids, put them side by side line by line: footage, post spacing, how posts are set, gate count, and cleanup. A quote that looks cheaper often leaves out concrete, hauling, or the second gate. Ours is written out so you can see every piece, and every fence installation includes a percentage discount off the job.