Should you use soap when pressure washing a driveway?

Should you use soap when pressure washing a driveway?

Yes, in most cases soap or a dedicated detergent significantly improves results compared to water pressure alone, particularly for oil stains, algae, or any buildup that’s had time to bond with the concrete’s porous surface. Detergent works chemically to break down grime, meaning you can rely less on maximum pressure to physically force dirt loose, which also reduces the risk of etching or streaking the concrete. For very light, routine maintenance cleaning on a driveway that’s already in good condition, water alone can be sufficient, but for anything beyond surface dust, adding an appropriate cleaning solution produces faster, more thorough, and longer-lasting results. Whatever product you choose, make sure it’s rated safe for concrete and rinse thoroughly afterward to avoid leaving residue that can attract new dirt.