Windows and Patio Doors
Superb form and function – along with a contemporary sensibility – make Gentek vinyl windows and patio doors an excellent choice for your home. Each style is expertly engineered for energy efficiency, enduring strength and classic beauty, along with ultra energy-efficient glass packages for ENERGY STAR® certification in all climate zones.
Gentek Window and Patio Door Collection
Choose from our collection of windows and patio doors
Vinyl Replacement Windows
The Gentek family of vinyl replacement windows is built on time-honored craftsmanship and a commitment to quality and innovation.
New Construction Windows
Gentek's masterfully styled windows offer a variety of design solutions to meet the ever-changing aesthetic, and budgetary needs of the new construction professional.
Patio Doors
With clean lines and attention to detail, Gentek sliding patio doors allow a generous infusion of natural light into your home’s interior, creating a cheerful and inviting ambiance.
Conserve More Energy With Insulated Glass
Insulated Glass Packages
When selecting the ideal replacement windows for your home, the glass package should be one of the primary considerations. Windows are roughly 80% glass, which means the glass system you choose is crucial for energy efficiency, climate comfort, and year-round savings
Many Barrier XP® insulated glass packages meet the latest ENERGY STAR® 7.0 requirements, including our innovative BarrierXP® PriME glass package, which meets ENERGY STAR Most-Efficient criteria in all climate zones. Consult your window professional for the optimal glass package required for your home and climate zone.
ENERGY STAR® and Energy Efficency
The average household spends roughly half of its annual energy budget on heating and cooling costs, according to the U.S. Energy Information Administration. With that, aesthetics is just one aspect to consider when choosing new windows. Since windows are roughly 80% glass, it’s important to choose an energy-efficient ENERGY STAR qualified window.
Many Gentek windows are expertly engineered to meet stringent ENERGY STAR performance requirements. Consult your window professional to help you choose the best insulated glass package to meet the ENERGY STAR requirements for your home and climate zone.
Explore the Portfolio Color Collection
Discover a curated palette of rich, contemporary colors designed to elevate any home exterior. The Gentek Portfolio Color Collection brings together timeless neutrals, bold accents, and on-trend hues, all engineered to deliver lasting beauty and exceptional performance. Explore the full collection to find the perfect color match for your next project.
Design Inspiration Made Easy
Gentek Visualizer
Choosing the right window colors can be one of the most challenging parts of updating your home’s exterior. How will each shade look with your existing materials and overall style? The Gentek Visualizer helps take the uncertainty out of the process, allowing you to explore a range of exterior window color options and instantly see how they’ll look on your home.
Gentek Blog
Welcome to Gentek blog, where your dream home is just a project away! Whether you’re looking to replace just siding or windows or do a full exterior renovation, we’re here to help. From the latest trends in design and innovative products to DIY tips and expert advice, we’ve got everything you need to turn your house into a haven.