Will I need to redo my entire sidewalk after a few years? 

No, the advantage of using the SettleStop™ PolyRenewal™ method is its longevity and durability. Once the underlying issues causing the cracks and sinking have been addressed, and the PolyRenewal™ procedure is done, your sidewalk should remain stable for many years. Regular maintenance and checks can further extend the lifespan.