Pressure Washing
Above is an example I have taken to show the before & after results
I use a Worx battery powered pressure washing device, I have two batteries so I can have an extended cleaning time (if power is not available).
This device isn't as powerful as some more top-end devices but still cleans very well and thus does not cause any potential damage to sensitive areas.
Almost anything can be cleaned! -Such as patios, walkways, driveways and more!
I also have an extendable brush attachment meaning I can also clean vehicles, windows and more.
Check out the video below for a demonstration!