Power/pressure washing

They did a good job of cleaning my sidewalk and driveway, however it's my understanding the best way to keep the grass from being impacted (yellowing) by the power wash solution is to saturate the areas along the driveway and sidewalk prior to power washing. It appears that was not done and so I am experiencing severe yellowing of my lawn along the edges of my driveway and sidewalk, which I'm not happy about as I spend an exorbitant amount of time maintaining my lawn.

Did a phenomenal job of pressure washing the driveway. Very friendly and punctual! Driveway looks a whole different color now that it is clean.