I searched long and hard for a company which would apply sealant to my driveway via squeegee and not a sprayer. My personal problem with spraying is that most of the people spraying are really painters and not asphalt people. Keystone applied sealant to my 350ft+ driveway in not much more than four hours. When I did the same job myself, years ago, it took me all weekend and really wasn't worth whatever money I saved along the way. Keystone's price was reasonable, and their service and communication were great throughout. Highly recommended.