Legal Question in Construction Law in California

You need to see whether your insurance was a "claims made" or "occurrence" type policy, and if the former, whether you purchased so called "tail" coverage. I suggest also that you go on the Internet using Google to look up "claims made insurance" and read about how it differs from "occurrence" policies.

Most contractors liability policies do not cover defective work. The damage to the cabinets might be covered. It's impossible to give any reliablie answer, however, without reviewing he policy and the damage/defects. Have you tendered the claim to your carrier and been rejected? If not, start by tendering the claim.