My asphalt was sealed a few years ago why are the cracks are opening up again?
That will happen. Once asphalt is cracked it is cracked. Maintaining those cracks is the best thing you can do to prolong the life of your asphalt. For minor situations not requiring the cost of a call from us, we recommend using a “do it yourself” Cold Pour Liquid Crack fill during the off years from seal coating. It is not the best material in the world but it will keep water, ice and weeds out of the cracks which make them worse. Don’t go for the cheapest stuff on the shelf, try to find one that has some rubber in it.