(KMOV) -- A new warning released for the man behind two News 4 Investigations into air duct cleaning companies.
In 2012, News 4’s Chris Nagus started asking questions about U.S. Air Ducts. Then this year, News 4 conducted an undercover investigation of Pure Air.
The same man, Noak Palotnick, was behind both companies.
Now the Better Business Bureau warns he is also connected to Quality Air Duct Cleaning and National Duct Cleaning Services.
So be on the lookout for robo-calls offering a discount. But when the crews come, the prices go up.