If you send a contractor an email, and he doesn't respond, it's because he's not interested. If he says one thing on the phone and still doesn't respond, he's still not interested. I decline half of the jobs that people call me about just from the call. Then when looking at a job, I probably turn down another half. I have a 3 to 6 month waiting list. If somebody is willing to take a job that everyone else is declining, you gotta wonder why? Then you have to ask why are they not wanting to respond? Is it the job, is it the client? or is it just not worth the effort to get paid doing it?