Welcome to Glass Insulators Inc.

Located in Bloomer WI, Glass Insulators Inc is a premier insulating glass manufacturer that combines high performance glass products with unparalleled customer service.  Family owned and operated since 1992, we specialize in servicing door and window manufacturers in the upper Midwest.

We strive to be a leader in service, quality and innovation.  We are certified through IGCC®/IGMA® for installation in high performance ENERGY STAR® approved windows and doors.  Our products carry a 20 year limited warranty and we are committed to providing service and lead times that are second to none.


Certified Insulated Glass Manufacturer / Energy Star Approved