For what I do, working on cars, I just contact my prefered insurer and ask for liability insurance for a vehicle repair business. They ask me some questions and arrive at a price. So far it has been acceptabl compared to others around me so I haven't shopped around. I don't think insuring a photography business is different from any other business.
Sorry, I can't point you at a dedicated photography insurer, by the way, where you are will help us help you.
There have been several (at least, perhaps more) on equipment insurance. What about business insurance (professional liability). If someone get hurt by your equipment, etc. I don't want to be held personally responsible.
Any suggestions? I am think of doing a bit of work, not full time, but never the less, what to make sure I am covered.
7DII+Grip, 7D+Grip, 40D+Grip, 5D+Grip, EF 24-105 f4L EF-S 17-85, EF-S 10-22, EF 70-200 f2.8 L IS II, EF 2x III, EF 100-400 f/4.5-5.6l IS II, Σ17-70 f2.8-4 C, EF 50mm f1.8, 550EX, Triopo TR-985, Filters Remotes Macro tubes Tripod heads etc!
5D, 20D, 24-105, BG-E4, BG-E2N, 17-85, Nifty 50 pre owned.