A 2013 Car Washes report now available from Research and Markets states the United States-based carwashing industry, which included about 15,000 locations, has a combined annual revenue of more than $5 billion.

The report also stated that the output of U.S. carwashes is "expected to grow at a medium rate in the next two years."

The reason? According to the report, it's because of consumer spending habits and new car sales.

Report: Carwashing/detailing industries are on an upswing

"There are few economies of scale. Chains have advantages in advertising and customer recognition. Small firms can compete successfully by having good locations," the report stated.

To read the full report, click here.