I pay $5000/yr and I carry: - $1,000,000 each occurence - $50,000 damage to rented premesis - $5,000 medical expenses - $1,000,000 personal and ADV injury - $2,000,000 General Aggregate - $2,000,000 Products COMP/OP AGG It really depends on the airports you're dealing with. A large international airport might require you to have hangars keeper which shoots it up to about $30,000 year. I work in mid-size airports and this is their exact requirements. Yes, all FBOs and airports I've worked require this coverage. The big one is the $1,000,000 per occurrence. It is VERY HARD to get a liability insurance coverage for a mobile aircraft detailer. Easier if you have your own hangar, but I like to be mobile. I called over 30 people looking for someone to cover me. In the end it was actually a local broker that gave me coverage. I would start there. Yes go over with the broker EVERYTHING THAT IS COVERED AND NOT COVERED. A lot of detailers offer window restorations but my broker told me that it WOULD NOT be covered so it's not something I even offer, although I know how to do it. Go line by line through your services and make sure you are good. Also, reach out and have each airport you operate at named as an additionally insured. It will keep you covered and set you apart from the other detailers that don't know what they're doing.