When you first notice any cracking or dropping in your concrete you may think it's nothing to be concerned about. In some cases that's true, but may lead to further damage which only gets more expensive over time. The less damage, the better your concrete will look after being repaired and less products are required to stabilize the slabs below and seal the surface joints, cracks etc.
Before Repairing Concrete Porch Step
Notice the sealant previously applied which has failed.
After Repairing Concrete Porch Step
Products used: PolyLevel, NexusPro crack and joint sealant
Driveway with Cracking
Notice the hairline cracks are absorbing surface mositure
Driveway sealed with NexusPro
Products Used: NexusPro joint sealant and PolyLevel