Like other trendy plumbing fixtures, glass sinks can be purchased in a wide range of colors, shapes and styles.

Share story

Q: We want to install glass undermount sinks for our new bathroom. While searching for information, the term “opaque glass” keeps popping up. What is opaque glass, and why would you choose it over other types of glass sinks?

A: Glass sinks are in a category all by themselves. Like any plumbing-fixture category, there’s a wide range of colors, shapes and styles to choose from.

Glass also has three basic transparency factors you need to consider. Here’s some information on all three types.

Ice glass. This is clear glass, widely used for vessel sinks.

Translucent glass. This type is great for backlighting the sink, since it’s a semi-transparent glass.

Opaque glass. This is glass that is painted or blocked out on the underside of the sink. If you want an undermount glass sink with a solid color, this is the way to go.

Ed Del Grande is a master plumber and contractor and is the author of the book “Ed Del Grande’s House Call.” Send questions to