About Company

Semko, Inc. is a family-owned and operated window and door replacement company based in Chicago, Illinois. Founded in 1989 by Hal and his son Jason, and supported by other family members, the company has been serving Chicagoland homeowners with dedication for more than 35 years. Specializing in custom replacement solutions, Semko offers a wide variety of vinyl and wood windows, including double-hung, casement, sliding, bay, bow, garden, and tilt-and-turn styles, alongside patio and French doors. The company prides itself on its personalized approach, often bringing samples directly to customers’ homes to help them evaluate options in person. With thousands of satisfied customers, Semko is recognized for its professionalism, quality installation, and affordable financing options, including 0% interest plans. By combining decades of expertise, top-quality products, and attentive customer service, Semko has established itself as a trusted leader in the home improvement industry throughout the Chicago area.

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