How can an insurance company drop me for claims that were an

I got dropped from my homeowner's for having to many claims in the past couple years. I've had my fence destroyed from the wind twice and I have had a pipe freeze and break and it flooded half of my house while I was at work. We sold that house and I told the gentleman at the insurance agency that we have been with since I was able to drive, so about 20 yrs, that when we go to purchase a new home that I would just call and start up a new policy and he said that they will not cover us for home anymore. We have Life/Auto/Home policies with this company and we had renter's when we rented. How can they just drop us like that. We have never been late on any payments at all!