Pressure cleaning is a perfect option for readying areas just before painting or even sealing off

https://www.scribd.com/document/813963060/Exactly-how-Frequently-Should-You-Arrange-Tension-Cleaning-Companies-in-Adelaide-139686

Pressure cleaning is actually a suitable option for readying surfaces prior to painting or sealing. A well-maintained surface area ensures far better adhesion and causes a smoother surface