An Insulated Glass Unit (IGU), also referred to as Double Pane glass, consists of two or more pieces of flat glass, also known as “glass-lites”, separated by a sealed air-space. Glass options include clear, Low-E, standard or high performance tints, reflective, laminated, and decorative glass.

What does IGU mean in glass?

Insulating glass units, or IGUs, are designed to keep homes warmer in the winter and cooler in the summer. An insulating glass unit commonly consists of two (sometimes more) panes of glass separated by a spacer material and sealed together at the edge.

How much does it cost to replace an IGU?

The cost of a replacement IGU can run anywhere from $100 to $600, or more, depending on the size and quality of the window, and labor charges can add an additional $150 to $500.