KleerTek partners with builders and architects to provide European-engineered windows, made in North Carolina, USA. Our German-designed, multi-chambered uPVC frames with Low-E-coated double or triple-pane glazing deliver airtight performance and year-round energy efficiency. Precision seals block out noise, while our steel-reinforced frames support extra-large openings for bright, open spaces. A variety of sizes, configurations, and colors are available to suit any project.
KleerTek’s welded uPVC frames with steel-reinforced cores ensure entry doors stay rigid and resistant to twisting or sagging, even with heavy use or large glass inserts. Our design utilizes multi-chambered frames and aluminum thresholds, keeping the outdoors outside and the indoors inside. Customizable layouts, including transoms and sidelights, utilizing full, half, or three-quarter glass or solid panels, let you create an entryway styled exactly the way you want.
KleerTek’s sliding door systems are engineered to eliminate drafts, noise, and sticking tracks common in typical patio doors. We offer two systems, Smoovio and Lift-and-Slide. German-engineered hardware allows large glass panels to lift easily from their seals and glide effortlessly with just one hand. Designed for expansive openings up to 21 feet wide and 9 feet tall, KleerTek sliding doors flood your home with natural light and create seamless transitions between indoors and out.