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.

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.

You can buy a pressure washer today for an average cost of $246. Gas pressure washers are the most expensive type, with an average price of $379. Battery-powered pressure washers cost $182 on average. Electric pressure washers cost an average of $167.