Gentek Building Products, Inc. is a leading manufacturer and distributor of siding and windows in North America. With more than 40 years of building industry expertise and over one million square feet dedicated to production and inventory of siding alone, Gentek is one of the few manufacturers to produce full lines of vinyl, aluminum and steel siding. All Gentek siding is produced at plants that have earned ISO 9001:2000 certification for meeting or exceeding quality management standards recognized by more than 140 countries. Our vinyl sidings are also certified through a quality-testing program sponsored by the Vinyl Siding Institute for achieving industry quality standards. And because our brand is distributed throughout North America, Gentek siding also must meet tougher standards for impact testing, cold-temperature impact, low-temperature flexibility and minimum thickness.

Gentek's complete line of new construction and replacement vinyl windows are precision-built for outstanding energy efficiency and durability. A powerful alliance of beauty and strength, our windows meet or exceed nationally recognized and accepted AAMA test standards and criteria and consistently earn high marks for quality and performance. From sidings and accessories to windows and patio doors, you will find Gentek products among the very best in the industry, and our service second to none.


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Our siding profiles range from popular Dutch Lap and Clapboard to Vertical Board & Batten - all available in quality finishes like light roughsawn, soft-brushed and driftwood.
Rated 5 based on 1 product reviews
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Vinyl Siding

Presenting timeless versatility and beauty in a protective, easy-care exterior, Gentek vinyl siding is quality-crafted for outstanding value. Our extensive siding product offering accommodates every project and price point, with selections ranging from builder grade to an ultra-premium panel that features rich, darker hues and a lifetime limited fade protection warranty.
Rated 5 based on 1 product reviews
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Aluminum Siding

Gentek aluminum siding captures the classic beauty of freshly painted wood in a durable aluminum construction. An ample selection of traditional siding profiles and inviting colors lends refinement to any architectural style, while our Cedarwood panel boasts intertwining tonal hues that recreate the warmth and charm of a genuine cedar finish.
Rated 5 based on 1 product reviews
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Steel Siding

Backed by extensive color and chalk protection, Gentek steel siding resists dents, warping and buckling caused by extreme weather conditions. Each rugged panel begins with a high-quality, pre-treated galvanized steel base which is primed and then coated with an oven-fused polyvinyl chloride (PVC) finish.
Rated 5 based on 1 product reviews

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Soffit, Fascia, Decorative Accessories and Trim

Gentek soffit and fascia are available in numerous colors and several finishes to add the perfect finishing touch to a home, while providing essential ventilation to the roof structure. For added excitement and visual appeal, select from our handsomely crafted window and door surrounds, fluted lineals, corner posts and other accents featured in our TrimEssentials™ by Gentek collection.
Rated 5 based on 1 product reviews

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Color Clear Through® System

Designing an elegant exterior color scheme is easy with Gentek's Color Clear Through system. This exclusive selection of customer-preferred colors ensures that all Gentek products - siding, soffit, fascia, trim and rainware - will beautifully match throughout our vinyl, aluminum and steel product lines.
Rated 5 based on 1 product reviews

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Gentek windows deliver the energy efficiency, beauty and durability that today's homeowners demand. Incorporating true warm-edge technology, heavy-duty frame construction, a highly durable balance system and insulating glass features, our windows consistently meet or exceed nationally recognized and accepted American Architectural Manufacturers Association (AAMA) test standards and criteria. Choose the BarrierXP® insulated glass package (Guardian Acclimate™ RLE glass with argon gas and the PPG Intercept™ Warm Edge Spacer System) to achieve the ENERGY STAR® program rating for all U.S. climate zones.
Rated 5 based on 1 product reviews

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Premium Vinyl Replacement Windows - Sequoia Select™

Sequoia Select premium vinyl windows feature a fusion-welded vinyl construction with foam-filled, steel-reinforced sash, interlocking meeting rails and thickset multi-chambered extrusions for superior structural integrity and strength. A wide range of window styles and insulated glass packages available.
Rated 5 based on 1 product reviews
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Vinyl Replacement Windows - Signature® Elite

Exceptional craftsmanship and remarkable energy-saving performance - Signature Elite is everything you're looking for in a quality replacement window, and more. The upscale design and attention to detail expertly merge with best-in-class technology for enduring beauty, superior energy efficiency, easy upkeep and excellent value.
Rated 5 based on 1 product reviews
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Vinyl Replacement Windows - Concord® Plus

Concord Plus vinyl replacement windows will provide beauty and energy efficiency for your home at an affordable price. Designed with long-lasting performance and value in mind, Concord Plus windows are precision-built to help keep your home warmer in the winter and cooler in the summer with less fuel consumption.
Rated 5 based on 1 product reviews

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Special Shape Windows

Classically styled and supremely durable, Gentek specialty windows will lend a dramatic focal point and deeper dimension to any interior living area. These elegant yet practical windows are custom built to your exact specifications and provide years of lasting beauty.
Rated 5 based on 1 product reviews

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Insulated Glass - BarrierXP

Many BarrierXP insulated glass packages meet the latest ENERGY STAR® requirements. Consult your window professional for the optimal glass package required for your home and climate zone.
Rated 5 based on 1 product reviews

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Portfolio Window Exterior Color Collection

Blending modern practicality with custom-crafted charm, the Portfolio Window Color Collection offers a generous palette of refreshing style for today's windows. The luxurious colors and warm woodgrains will beautifully reflect your personal taste while adding a dramatic touch of elegance to your home.
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Window Color Collection

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Green Environment

Expertly crafted for a weathertight fit, Gentek windows and patio doors deliver outstanding energy efficiency to help reduce fuel consumption needed to heat and cool homes. For even greater energy savings, Gentek windows are also available with ENERGY STAR® qualified glass packages for maximum thermal performance and year-round energy conservation.
Rated 5 based on 1 product reviews

Last Update: 2021-01-26