How can you get insurance for a rottweiler?
There are several customer-generated pet insurance comparison sites that you should consult They can give you a sense of which companies fellow pet parents are happy with, in terms of coverage and customer care. There are about 10-12 pet insurance companies across the country, but they are structured differently in terms of how and how much they reimburse in terms of vet bills. Do your homework and read all the fine print.
You should also check with your own homeowner's insurance company or agent as to the underwriting guidelines concerning dogs. Some may exclude this breed only if there have been prior claims or some showing of aggression.