Integrated System Windows

Modern architecture demands windows that balance aesthetics, performance, and adaptability — and that’s where our integrated system range excels. Drawing from years of fenestration expertise, we offer solutions that combine clean lines with exceptional thermal and acoustic control. For projects requiring lightweight strength and a contemporary look, our Aluminum Alloy System Windows deliver slim sightlines and corrosion resistance. When luxury and timeless appeal are essential, Premium System Windows provide hand-finished frames with advanced multi-point locks. In automated homes and commercial buildings, Smart System Windows offer motorized operation and integration with building management systems. Meanwhile, Energy-saving System Windows significantly cut heat transfer through low‑E coatings and thermal breaks. Every category shares the same DNA: precision engineering and rigorous testing to form a truly integrated building shell.


Integrated System Windows embody a complete approach to fenestration design, where frame, glass, and hardware work together as a single cohesive unit. Each window is fabricated using high‑grade polyamide‑reinforced profiles, triple‑seal gaskets, and fusion‑welded corners that eliminate thermal bridges. Integrated System Windows achieve air permeability ratings as low as 0.5 m³/h·m² (Class 4) and water tightness above 600 Pa, making them suitable for exposed high‑rise and coastal installations. The locking mechanism is fully concealed within the sash, maintaining the minimal visual footprint while providing security up to RC3 level. For glazing, we utilize double or triple insulating glass units with warm‑edge spacers, which push the whole‑window U‑value down to 0.8 W/m²K in select configurations. The result is a silent, draft‑free interior environment that requires less heating and cooling year after year.

Key Performance Parameters

  • Frame construction: multi‑chamber uPVC, uPVC/aluminum composite, or full aluminum with 34 mm thermal breaks
  • Hardware: concealed 6‑point locking with tilt‑before‑turn or tilt‑only function
  • Glazing options: 24 mm to 48 mm IGU, double or triple pane, argon‑filled, low‑E (emissivity ≤ 0.03)
  • Warm‑edge spacer: TPS or stainless steel composite, Ψ‑value ≤ 0.035 W/mK
  • Gaskets: co‑extruded Q‑Lon and central EPDM seal, ensuring lifelong elasticity
  • Sightline: as narrow as 75 mm on aluminum variants for maximum visible glass area
  • Acoustic performance: Rw up to 48 dB with laminated outer pane and optimized cavity
  • Automation: optional IQ‑ready actuators for integration with KNX, Zigbee, or Z‑Wave systems
ModelFrame MaterialGlass BuildU‑value (W/m²K)STC (dB)Air Infiltration (m³/h·m²)Water Tightness (Pa)
ISW‑70 UPVCuPVC, 5‑chamber4/16/4, low‑E1.135≤ 0.5600
ISW‑80 ALUAluminum, 34 mm break6/18/6, double low‑E0.940≤ 0.4750
ISW‑92 TRIAlu‑clad timber4/14/4/14/4, triple low‑E0.846≤ 0.3900
ISW‑SMARTAluminum, thermal break6/16/6, laminated low‑E1.048≤ 0.5750

Hot Products

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    Energy-efficient Windows

    Duoping is a leader in the research, development, and supply of high-performance energy-efficient windows. With years of experience in the window and building materials industry, we specialize in providing products that combine advanced insulated glass and thermal sealing technologies to ensure excellent insulation, low energy consumption, and durability. Our energy-efficient windows are designed for various applications, including residential homes, office buildings, hotels, and more. We have successfully established a market presence both domestically and internationally and look forward to becoming your trusted partner for high-quality energy-efficient windows in China.
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    Aluminum Alloy Railings

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    Ultra-clear Glass

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    Minimalist Pavilions

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    Aluminum Railings

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    Coated Glass

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