The main difference is that power washing uses highly pressurized steam to do the cleaning while pressure washing just uses unheated tap water, without the help of a heating element.

Since power washing uses heated water, it requires more expensive equipment, meaning you'll pay more for power washing. However, you get what you pay for in this case—especially if you have tough dirt and stains you want to quickly remove from concrete surfaces or other durable materials.

How Long Does It Take to Power Wash a House? It depends on whether you do it yourself or hire a professional. A power washing service company can get your house looking spotless and brand new in 30 minutes to 2 hours.