Provo police are trying to track down pavers who are scamming the elderly out of thousands of dollars.
Police have two cases so far, but believe there are many more victims.
Helen Anderson, spokeswoman for the Provo Police Department, said, "They seem to be focusing on the elderly or vulnerable people. They knock on the door and say, 'Hey, we're a business that does asphalt. We noticed that you might need some. We have some extra black top in the back of our truck."
The problem, Anderson said, is they will do much more work than is authorized. She said, "They use a lot more black top from their truck, and then they charge for the entire amount. And people are complaining that they've been charged instead of say $1,700, they are being charged $8,000."
Anderson said the scammers even followed the homeowners to the bank to make sure they got paid.
Police believed one group running the scam has already left town, but they thought there were others in the area.
Anderson said if your are going to have work done on your home, make sure you get the price in writing.