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uPVC Windows

Pava

The PAVA system combines innovative design with energy efficiency, offering advanced Tilt and Turn functionality. Discover the unique features that make PAVA the ideal choice for modern, energy-conscious homes.

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New
Tested or calculated parameters depending on construction type and element dimensions.
STC = 32-46 OITC 26-37 SOUND TRANSMISSION CLASS
*Tested or calculated parameters depending on construction type and element dimensions.
U-Factor = 0.14-0.26 THERMAL TRANSMITTANCE
DP = 30-80 DESIGN PRESSURE
PHIUS FOR PASSIVE HOUSE RECOMMENDED
Up to 12 PSF WATERRESISTANT
ADA STANDARDS COMPLIANT

Pixel

PIXEL windows by OKNOPLAST combine a slim, elegant design with innovative Tilt and Turn functionality. The narrow movable mullion and symmetrically placed handles enhance aesthetics, while the sharp-edged profile maximizes natural light.

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*Tested or calculated parameters depending on construction type and element dimensions.
STC = 32-46 OITC 26-39 SOUND TRANSMISSION CLASS
*Tested or calculated parameters depending on construction type and element dimensions.
U-Factor = 0.16-0.29 THERMAL TRANSMITTANCE
Tested or calculated parameters depending on construction type and element dimensions.
DP = 30-80 DESIGN PRESSURE
ADA STANDARDS COMPLIANT

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    uPVC Windows - Energy Efficient, Low Maintenance & Customizable

    Discover the perfect balance of performance, style, and durability with OKNOPLAST’s premium uPVC windows. Designed for modern American homes, our solutions combine advanced European engineering with exceptional energy performance to meet the highest standards in comfort, aesthetics, and sustainability.

    Our energy efficient uPVC windows feature multi-chamber profiles, precision sealing, and Low-E glass that work together to reduce heat loss, enhance insulation, and lower energy bills—all while creating a comfortable indoor climate throughout the year.

    For added functionality, our Tilt and Turn windows offer secure ventilation and effortless cleaning in one elegant design. Just one handle allows you to tilt the sash inward for fresh air or swing it fully open for easy access. This smart system is perfect for families, pet owners, and those who value both style and convenience.

    Explore our two flagship window systems:

    • PIXEL window - A sleek, minimalist design with ultra-slim frames that allow for more natural light and unobstructed views, while delivering outstanding thermal performance.

    • PAVA window – Our most advanced window system, featuring STV (dry-glass bonding) technology and reinforced profiles for superior strength, insulation, and acoustic comfort. PAVA is ideal for energy-conscious homeowners and Passive House projects.

    Every OKNOPLAST window is fully customizable. Choose from over 50 finishes, including wood-look and matte options, and tailor your custom uPVC windows to match your home’s architecture-inside and out.

    Need installation support? We work with trusted, certified window installers across the U.S. to ensure your windows are fitted with precision and care.

    Upgrade your home with OKNOPLAST uPVC windows-where innovative design, energy efficiency, and long-lasting quality come standard.

    Why Choose UPVC Windows?

    uPVC (unplasticized polyvinyl chloride) is one of the most popular materials for modern window systems. Unlike traditional wood or aluminum frames, uPVC does not warp, rot, or require repainting. It delivers:

    • Outstanding Energy Efficiency - multi-chamber profiles, Low-E glass, and argon gas filling help reduce heating and cooling costs by up to 30% annually.

    • Durability & Weather Resistance - resistant to moisture, salt air, and UV rays, making them ideal for both northern winters and southern coastal climates.

    • Noise Reduction - double or triple glazing can reduce outdoor noise by up to 40 decibels, perfect for busy urban areas.

    • Enhanced Security – reinforced steel cores and multi-point locking systems protect your home and family.


    UPVC windows combine high energy efficiency, durability, and security, making them one of the most cost-effective window choices for U.S. homeowners.

    Best UPVC Windows for U.S. Climates

    Oknoplast designs UPVC windows tailored to the diverse needs of American homeowners:

    • Cold Regions (Minnesota, New York, Chicago): Triple-glazed UPVC windows with argon gas filling and Low-E coatings.

    • Hot & Sunny States (Texas, Arizona, California): Solar-control glazing and UV-resistant frames.

    • Hurricane-Prone Areas (Florida, Gulf Coast): Impact-resistant UPVC windows certified for coastal building codes.