I just got off the phone with my insurance company. We went over some scenarios I had with respect to the different types of potential water damage.
In order to be mostly covered (mostly because there are exclusions we cannot buy coverage for), we would need to to upgrade our coverage by about $240/yr. I said yes.
A couple of friends of ours found themselves in flood damage situations recently. One had the right type of coverage and the other one didn't and is currently spending a lot of money just in the clean up phase of their basement.
We have a hybrid of coverage of our friends'. As we all have different insurers, our respective packages are slightly different. So the exercise was partly topping up and adding on to our existing policy.
Next up will be re-evaluation of our extended health care and life insurance policies. Each year, for one month, D's company allows such change. We will be coming up to that time shortly. I've been given the chart with all the categories but haven't the time to really look at it yet.