5650 Series | 7150 Series | Bay/Bow | Csmnt/Awng

When it comes to choosing windows for remodeling projects, one name stands out: The Heartland Collection™ (STI). With an unmatched combination of quality, features, and style, The Heartland Collection™ (STI) vinyl replacement windows meet the requirements of even the most demanding customer. From cost conscious consumer to the high end homeowner, The Heartland Collection™ (STI) systems offer a complete spectrum of glazing solutions. Remodeling professionals know that The Heartland Collection™ (STI) is the durable high performance, high quality choice.

The vinyl lineal certification program of the American Architectural Manufacturers Association (AAMA) bears witness to the quality of our raw materials. This independent trade organization of building product manufacturers conducts unannounced tests on the vinyl components used in windows. The results of these tests clearly show that the vinyl components in The Heartland Collection™ (STI) windows exceed all industry standards for impact resistance, dimensional stability, and color fastness.

Four point fusion welders ensure that every corner is square and sealed against air and water infiltration. Computer-controlled glass cutting imparts exact tolerances to every piece of glass. In each step of fabrication skilled craftsmen utilize the latest in computer-controlled manufacturing to ensure that every window system meets the highest standards of construction. The Heartland Collection™ (STI) high performance window systems are constantly monitored for quality and consistency that is unmatched in the industry.

The finest materials are crafted expertly and tested throughout the process to meet stringent standards for quality. That’s why all The Heartland Collection™ (STI) windows come with a lifetime transferable non-prorated warranty. See warranty for details.