Patios and walkways need a few things done for maintenance and upkeep. The first thing is cleaning and sealing. Cleaning and sealing is a good option to help prolong the polymeric sand between paver joints and preservation of the pavers themselves. Sweep or use a leaf blower to clean off grass clippings, leaves and other debris. Washing your patio can be done too with a garden hose and nozzle or pressure washer. If you use a pressure washer be careful not to score the paver surface or blow out the joint sand. These hardscaping surfaces do need some upkeep, but they will last you a lifetime.