While it’s true that you can rent a power washer form your local hardware store for a few days and wash your property by yourself, this comes with quite a bit of hassle.
First of all, if you have never handled a power washer before, they can be quite unwieldy which could be very dangerous. When you are not expecting such a powerful stream of water to burst out of the nozzle it could kick back and you can blast away a glass window or a loosely attached soffit on your home.
In many cases, a power washer alone will not get rid of the tough stains that you are targeting. Sometimes you need a cleaning solvent but did you know that some solvents can be too caustic and damage your siding, fencing and other surfaces?