We've had people come in and check our windows before.. We've also gotten people to do out yardwork just because they came to the door and asked us. It might just be some guy trying to get his own business going...

The guy that "inspected our windows" we ended up paying him a few hundred dollars to install this new double french-style back door.. It was pretty cool, he's just like "want some windows?" and we're like "no man, we want a door" (that's the basic gist of what happened)