Attach is from TCIA. Maybe when you're asked to come talk with a prospect about a job, you can open with the compliment that you're impressed that they are contacting you because they are being smart about how important it is to have the job done right and they expect you are providing them with a solid investment in their property (i.e., money well spent). A lot of people feel really good about someone who makes them feel like they're expert in just calling you in the first place, and may make them listen better without doing the hard sell. Maybe give them a copy of this to remind them as they do their research that you want to be sure they get the best quality and maybe they'll decide you get the job because you're looking out for them.
A friend of mine actually picked the more expensive quote because the arborist whom I suggested to her made her feel good about how her property would look when he would get done. And he answered phones and showed up. If you're swamped with work and cannot fit anyone else in for several weeks, still call the person back and say that you appreciate their call and your schedule is tight as a Scotsman's purse (!), and that you are looking X weeks out. If they say they can wait, ask them to give you a quick call back in X weeks and be sure to return that call no matter what. I have had friends who became very frustrated at not even being acknowledged if they left a message.
And Treehumper is right, if you have someone in the crew who has a solid tree care background and is a good schmoozer, you might want to train them up for doing sales and estimates. Or can you afford to recruit a retired arborist who's sold his business but still likes to be involved in the industry who can work a 5-10 hours a week doing the customer service and sales for you, provided he's on board with your way of working? I'm a big advocate of working smarter instead of harder.
Your attachment says for immediate press release. I know a number of years ago the TCIA used to send out articles just like the one you posted for tree companies to publish in their local papers. Is this still happening? Is that something I could publish in my local paper for customers in my area to see. I am a member of the TCIA and the article really helps to establish the difference between reputable companies and the non-reputable companies.
I would enjoy it much more if I could publish it in my local paper, and then put the name of my company at the end to the article. That would get me some business. But, would take the credit away form TCIA and that is not right, I know.