When someone is installing a kitchen sink, they have to maneuver and align heavy objects (including the sink itself) around the countertop. If you get it wrong, you are very likely to chip, crack or completely destroy your kitchen countertop. Not only is an experienced plumber much less likely to do this during the kitchen sink installation process, but if he or she does damage your kitchen countertop, it is him or her (or the insurance company) who foots the bill. Not all kitchen sinks are built the same. This rule also applies if you invest in a kitchen sink with abstract design; this will require a reshaping of the hole for the installation to be successful.