The answer to 'average cost of sink' is that the typical cost of a new sink can vary widely, depending on factors like the sink material, size, style, and installation requirements. Generally, a basic sink may cost between $100-$500, while high-end or custom sinks can range from $500 to $2,000 or more. The cost of installation by a plumber is usually an additional $150-$500 on top of the sink price.
The specific cost for your home will depend on your local market, the complexity of the installation, and whether you need to replace any plumbing or countertop. It's best to get quotes from 2-3 local plumbers to understand the full cost for your project.