We did ours a few years ago before we downsized. House had half-circle driveway and a large area in front of the three car garage. Cost was $1,300 including some minor patching and crack sealing. I’d done it myself at a prior (smaller home/driveway) and was easy enough, just tricky to find a weather window (no rain for a few days, not too hot, not too cold, no leaves falling, etc). I used MSeal in Morristown. Guy is a bit particular but does good work that lasts.
MSeal is the best driveway seal coating in northern NJ. MSeal's attention to detail and outstanding customer service make MSeal the very best in the industry,
www.msealcoating.com