When it's hot, they're on the prowl. Unlicensed street pavers going door-to-door offering blockbuster deals that end up costing the consumer thousands.

Cynthia Clark is dealing with the aftermath of one of those unlicensed pavers; her driveway is a sloppy mess.

"He said it was a special asphalt he laid down for us. It was supposed to absorb water," Clark said.

She paid $3,800 for a ‘special’ asphalt. Three months later it started to crack, weeds began popping up, the sides crumbled away and Clark’s high heels even sunk into the ground.

She hired the pavers after she got a knock at her front door. Clark said a man named John with Super Drives offered to pave her driveway with leftover asphalt at a discount price.

Super Drives promised straight edges, three inches of asphalt and a solid finish. Within three hours the job was done, but none of the promises happened.

Washington State Labor shows no record of Super Drives. State officials said the company isn't licensed or bonded and they see the same scam every year.

Last year KIRO 7 Consumer Investigators exposed a traveling band of illegal pavers. George Stanley with Community Paving was the ring leader. He was accused of ripping-off dozens of consumers from Arizona to Washington. He's since been arrested in California and charged with theft and elder abuse.

"It flat out makes me want to cry. This is disgusting. Disgusting how some people can do this to other people," Clark said.

She paid for the driveway in March, but said there was no way to make it through the winter. Her only choice was to tear it up and start all over.

Steve DeSimone with Superior Asphalt was hired by Clark to replace the so-called special asphalt.

DeSimone said the asphalt is ‘garbage’ and that Clark got ripped off.

They brought in two trucks and a half a dozen men to do the job and while Clark ended up with the driveway she wanted, DeSimone said scammers like Super Drives gives everyone a black eye.

"It definitely gives a bad name on the paving industry," DeSimone said.

We tried tracking down John with Super Drives, but the address listed on his ad took to a UPS store in Bonney Lake.

"We got scammed, that's what it boiled down to," Clark said.

She knows she'll never see her $3,800 again. Her only hope is that other people won’t end up making the same mistake she did.

State officials said they usually see a summer time spike in these door-to-door paving scams. Remember anytime you see an ad or get a knock at the door, ask for a licensee number and make sure it checks out with the state.

For a guide on finding a contractor, click here.