At KleerTek, we build light, strength, and clarity into every space.
Our story began in Eastern Europe, where our family spent seven years. We observed the craftsmanship, efficiency, and design standards that define European window and door construction. What started as curiosity soon became conviction: homes and buildings could be built better, stronger, and more beautiful.
When we returned to the United States, we saw an opportunity to bring that proven European performance home to the U.S., combining German-engineered precision with American service and reliability.
Today, KleerTek manufactures premium European-style uPVC windows and doors, each one crafted with steel reinforcement, multi-chambered frames, and multiple seals for unmatched durability and efficiency.
European windows have set the global benchmark for strength, energy efficiency, and precision, and now that standard is made in America.
With engineered profiles, steel reinforcement, and multi-seal systems, KleerTek windows and doors deliver airtight performance and durability that outperforms traditional American window systems. Each unit is crafted in North Carolina for short lead times, responsive service, and the reliability that imported products can’t match.
From modern custom homes to commercial projects and barndominiums, KleerTek windows are engineered for bigger openings, quieter interiors, and cleaner lines. We partner with dealers, architects, and contractors across the U.S., providing quoting tools, BIM models, installation support, and consistent delivery schedules.
When you choose KleerTek, you’re partnering with a family-owned high-efficiency window company that believes craftsmanship is a calling, and that light, in every sense of the word, should shine through what we make.
To learn more about our American-made windows and doors, give us a call or reach out by email.