JACKSONVILLE, Fla. --Tim White, owner of White's Roofing, said the problem with unlicensed contractors is like a disease in his industry.

"It is one of the things destroying our industry," said White.

White knowshomeowners are alwayslooking for the best price, but he saidthey need to check on who claims to be a contractor.

"I understand someone wanting to get a fair price," said White, "I'm like that myself. But you have to be careful."

He is glad to see that the police are doing something to weed out the unlicensed guys becausethey are not playing fair.

"It makes it very difficult for me to continue on, to be honest with you," he said.

Why? White said unlicensed contractors are uninsured and don't pay unemployment taxes and they take food off his table.

"A lot of people don't realize that when they hire someone to work on their house, if they aren't covered and don't have insurance on their employees, if they get hurt on the jobthey will be held liable for their injuries," White said.

White is please to see the undercover sting by the Jacksonville Sheriff's Office caught eleven unlicensed contractors, but he said itwon't put an end to it. The sting will only slow them down.

"We have to stop it," he said, "Like I said, you're either part of the problem or part of the solution."

The joint effort sting, involving JSO, Department of Business and Professional Regulation, Department of Financial Services and the Northeast Florida Builders Association, mined ads on Craigslist to find the unlicensed contractors.

To check a contractors licenses: