Absolute Blacktop Sealcoating is a reputable place to call for your blacktop resealing needs. You can schedule them to come out right away and their prices are very good-- $55 for a short 2 car garage driveway. They have a warranty of a year and they only take about 20 minutes from start to finish to reseal the driveway. They will do extra work of course like fixing cracks and so on if needed. Nice guys.