This could be a lucrative side gig or a full-time operation. Consider that the average pressure washing costs between $192 and $401 per job. If you did two jobs a day at $250 each, you'd make $130,000 a year working 260 days per year. That's good money and a lot of time off to enjoy it.

Cold water machines are going to be cheaper than hot water pressure washers. You can get a light duty electric pressure washer for as low as $100 (before tax). If your opting for a light duty gas engine cold water pressure washer prices start at around $300 for a basic model.

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.

A pressure washer uses high-pressure jets of room temperature water to clean surfaces. A power washer or power cleaner, on the other hand, uses high-pressure jets of steaming hot water.