Despite repeatedly turning, what appeared to be a furnace inspector, away, Amherstburg resident Devon Pageau says he insisted he needed to come into her home. "He had a clipboard and a name tag. And I waved to him and said, no I'm not interested. And he said, no I'm not trying to sell you anything, I need to come in and inspect your furnace."

Police say her instincts likely served her well as they believe the inspector was an alleged fraudster.

They are warning the public on social media of suspects going door to door demanding entry.

As Pageau found out, their approach is sometimes very aggressive. "He said, no it's the law I need to come in. And when he knew I wasn't coming back, he said that's fine I'll just send my friend back and he was getting louder and louder as he spoke."

The suspects were not claiming to be from a recognized Windsor company, but advisor Tony O`Beid from Fahrhall Home Comfort says their technicians never approach a home unannounced. "We would never ever go door knocking door to door. We would actually make appointments with you, or you call us, and we make an appointment,"

O’Beid says once fraudsters get into your home it`s a major cash grab. "It's just a gimmick. It's just their way to get in your house to buy equipment, or to get you to rent equipment from them, or to swindle you."

Meantime Pageau says she will remain on high alert. "You shouldn't have to force yourself into someone's home. If someone says no, you should go away."