Just so you know, Farm Bureau will hang you out to dry if you ever have to make a claim. They don't, and won't, offer CCC coverage. I learned the hard way about them. My agent (who I refer to as "Lying Dirtbag Guy") told me that anything I worked on would be covered, no matter what. I was window cleaning (only) at the time and some windows got scratched by an employee who didn't follow directions. Farm Bureau wouldn't even send someone out to look at the "claim" and I ended up paying 6k out of pocket to make it right.
When I switched to Power Washing I went with Joseph Walters, but started hearing some disconcerting info about them, and their customer service went from awesome to surprisingly poor. I went with Eerie on the advice of @Innocentbystander and I was very surprised at the value. I haven't had, and hope I never do have, a claim, but I feel pretty confident in them.
Just my $0.02.....but I would RUN from Farm Bureau