Light Commercial PVC-steel Composite Windows

Introducing our advanced range of Light Commercial PVC-steel Composite Windows, engineered to deliver exceptional durability and performance for low-rise commercial buildings, shops, and offices. Combining the thermal efficiency of PVC with the strength of a galvanized steel core, these windows offer a superior alternative to traditional aluminum or timber frames. Our Steel Reinforced PVC Composite Windows provide the structural integrity needed for larger openings, while the versatile Tilt and Turn PVC-steel Composite Windows mechanism allows easy ventilation and cleaning. Ideal for both Residential PVC-steel Composite Windows upgrades and demanding Commercial PVC-steel Composite Windows projects, our products meet stringent building codes and aesthetic demands. The multi-chambered PVC profiles, fused with a reinforced steel skeleton, ensure high impact resistance and long-term stability. With a smooth, low-maintenance surface and customizable colors, these windows enhance any façade without compromising on energy efficiency. Replacing outdated windows with our composite models can cut energy consumption by up to 30% while modernizing the building exterior.


The Light Commercial PVC-steel Composite Windows are designed with precision to offer outstanding thermal and acoustic insulation. Manufactured with a high-quality uPVC profile and a continuous galvanized steel core, these windows maintain their shape under extreme weather conditions and daily use. Available in multiple opening styles, including tilt and turn, casement, and fixed frames, they adapt to diverse project requirements while ensuring excellent insulation values.

Key Benefits

  • Reinforced steel core provides over 20% higher load-bearing capacity than standard PVC frames.
  • Thermally broken design with multi-chamber construction reduces heat transfer, leading to lower energy bills.
  • Integrated rubber gaskets and drainage channels guarantee superior water tightness.
  • Tilt and turn mechanism allows safe ventilation and convenient cleaning from inside.
  • Optional triple glazing achieves U-values as low as 0.8 W/m²K, meeting passive house standards.
  • Class 3 burglar resistance with multi-point locking and optional reinforced hinges.
  • Low-E coating reflects infrared heat while argon gas fills enhance thermal insulation.
  • Wide range of RAL colors and woodgrain finishes for aesthetic versatility.
  • Low maintenance—no painting required, easy wipe-clean surfaces.

Design Features

The profiles feature a fusion-welded construction for maximum corner strength and minimal air infiltration. Internal steel reinforcement is fully enclosed within the PVC, preventing condensation and corrosion. The glazing bead is secured from the interior to enhance security, while the triple-seal weather gaskets provide a continuous barrier against drafts. Optional integrated blinds between glass panes offer privacy and solar control without additional cleaning. Hardware components are tested for 20,000 cycles, ensuring decades of reliable operation.

Technical Specifications

ParameterStandardOptional Upgrade
Frame materialPVC-U with 1.5 mm galvanized steel2.0 mm steel reinforcement
Glazing typeDouble glazing (4-16-4 Low-E)Triple glazing (4-12-4-12-4 Low-E)
Overall U-value (Uw)1.3 W/m²K0.8 W/m²K
Acoustic rating (Rw)33 dBup to 42 dB
Wind resistance classClass C4 (EN 12210)Class C5
Water tightness classClass 9A (EN 12208)E1050
Air permeabilityClass 4 (EN 12207)-
Profile depth70 mm88 mm
Glass thickness24 mm36 mm / 40 mm
Hardware systemTilt & turn, multi-point lockMotorized actuator
Color finishesWhiteRAL 7016, 9005, woodgrain, custom
Maximum sash dimensions1200 × 2400 mmCustom sizes available
Solar heat gain (g-value)0.550.37 with triple glazing
Burglar resistanceRC2 (EN 1627)RC3 available
Seal typeEPDM rubberSilicone for extreme temperatures
Warranty10 years on profile15 years available

Application Scenarios

These windows are suitable for light commercial settings such as ground-floor retail stores, medical offices, schools, and small office buildings. With their slim profiles and large glass areas, they maximize natural light while meeting stringent thermal regulations. The corrosion-resistant steel core ensures longevity even in coastal environments, and the fusion-welded corners add structural strength. Compatible with smart building systems, they can be integrated with automated ventilation controls. Installation is streamlined thanks to pre-assembled frames and adjustable fixing brackets. Moreover, these windows contribute to LEED and BREEAM certification points due to their high recycled content and energy-saving performance.

Maintenance & Durability

  • Smooth PVC surfaces resist dirt and only require occasional cleaning with mild soap and water.
  • Hardware should be lubricated annually to maintain smooth operation.
  • Gaskets are UV-stabilized and remain flexible for decades.
  • Steel core is protected from rust by a hot-dip galvanization layer.
  • Frames are recyclable at end of life, aligning with circular economy principles.

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