- Full Frame Window Replacement
Why choose this provider?
STL Windows and Doors serves the needs of property owners in O'Fallon and neighboring areas. It offers a wide variety of energy-efficient replacement window styles, such as double-hung, casement and awning, slider, bay and bow, garden, and architectural. The family-owned and family-operated company also provides options for interior stain and paint finishes, exterior colors, and decorative glass designs. STL Windows and Doors was established in 2014. It is certified by the US Environmental Protection Agency as a lead-safe firm.