China Energy Efficient Windows for Home Use Manufacturer, Supplier, Factory

Homeowners increasingly prioritize energy performance, and our selection of Low-E Coated Energy Saving Windows leads the industry by merging advanced coatings with structural precision. These units rely on microscopically applied metallic layers to bounce infrared heat back to its source, keeping interiors cooler in summer and warmer in winter. Complementing them, our Residential Energy-saving Windows integrate multi-chamber vinyl profiles and argon-filled double glazing that slash conductive heat flow. For mixed-use properties, Commercial Energy Efficient Windows deliver the same thermal integrity at scale, with reinforced frames rated for heavy-duty cycles. Every configuration meets Green Building Standard Energy-saving Windows criteria, carrying NFRC certification and Energy Star labels that validate long-term savings.


EcoTherm Home Windows represent the pinnacle of our residential line, engineered to perform in extreme climates without sacrificing daylight. Their triple-pane construction sandwiches krypton gas between panes, stabilized by warm-edge spacer technology that eliminates cold bridging at the glass perimeter. The surface coating blocks up to 78% of UV radiation, protecting furnishings while maintaining a clear, neutral view. Below are the critical performance indicators and feature highlights that set this product apart.

  • Dynamic solar control adapts to seasonal sun angles, reducing glare without interior shades.
  • Acoustic laminate interlayers dampen outdoor noise by an additional 5–7 decibels versus standard panes.
  • Fiberglass-reinforced composite frames resist warping at temperatures from -40°F to 160°F with zero thermal expansion.
  • Triple weatherstripping with silicone bulb seals ensures consistent air infiltration rates below 0.05 cfm/ft² in field tests.
ParameterValue Range
U-factor (center of glass)0.18 – 0.22
Solar Heat Gain Coefficient (SHGC)0.22 – 0.30
Visible Transmittance0.57 – 0.63
Condensation Resistance Index72 – 78
Air Leakage (ASTM E283)<0.08 cfm/ft²
Frame Depth / Sash Depth3-1/4 in / 2-3/8 in

Installation flexibility is equally critical. EcoTherm Home Windows ship with a pre-drilled jamb system that simplifies leveling across crooked openings, and the factory-applied capillary tubes equalize pressure between the unit and the building envelope to prevent seal failure over decades. The glazing edge is protected by a butyl-based secondary seal, while the primary polysulfide layer resists moisture ingress even in coastal salt-spray zones. By coupling these mechanical details with a precisely calibrated Low-E coating, EcoTherm Home Windows routinely achieve whole-house energy savings of 22–28% compared to dual-pane clear glass retrofits, making them a staple in net-zero and passive house designs across North America.

Hot Products

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    PVC-steel Composite Windows

    Shandong Duoping New Materials Co., Ltd. specializes in the research, development, production, and supply of high-end PVC-steel composite windows. With years of experience in the door and window industry, the company combines the thermal insulation and environmental benefits of PVC with the robust structural properties of steel, offering windows that balance performance and cost-effectiveness. These windows are widely used in residential, villa annexes, office spaces, and other environments, gaining market recognition for their balanced performance and value. We sincerely look forward to partnering with you to provide window solutions that combine both performance and cost-efficiency.
  • System Sunroom

    System Sunroom

    Duoping stands out as a professional manufacturer and supplier of System Sunroom, with advanced integrated design and strict quality control. It provides customized modular solutions featuring high component compatibility, fast installation and excellent wind resistance, suitable for high-end residential outdoor spaces. Wholesale orders are supported, with reliable after-sales service and a service life of over 30 years.
  • Aluminum-wood Windows

    Aluminum-wood Windows

    Duoping is a professional manufacturer and supplier of premium aluminum-wood windows, skillfully combining durable 6063-T5 aluminum exteriors with high-quality imported natural wood interiors. These windows blend luxurious aesthetics, excellent insulation and long-lasting durability, perfectly suited for villas, luxury residences and high-end hotels. We offer full customization of wood type, glass specs and styles, accept wholesale orders, and deliver top-tier high-end window solutions for global luxury construction projects.
  • KFC Door

    KFC Door

    Shandong Duoping New Material Co., Ltd. is a professional R&D, production and supplier of high-end KFC doors. With years of deep cultivation in the door and window building materials industry, relying on core technologies of aluminum alloy precision processing and sealing craftsmanship, we create KFC door products featuring durability, permeability and anti-theft performance. Our products are widely applicable to shops, restaurants, convenience stores and other scenarios, and are sold nationwide and overseas. We sincerely look forward to working with you and becoming your reliable partner for door and window building materials in China.
  • Bathroom Doors

    Bathroom Doors

    Widely used in homes, hotels and office buildings, Duoping’s bathroom doors are manufactured by a professional supplier with advanced waterproof technology and eco-friendly material processing to ensure high quality. They feature IP54 waterproof, privacy protection, sound insulation and easy cleaning, with customizable styles. The company provides wholesale services, strict quality control, customized solutions, nationwide delivery and comprehensive after-sales support.
  • Aluminum Windows

    Aluminum Windows

    Duoping is a professional manufacturer and supplier of aluminum windows, with advanced aluminum alloy processing and strict quality control. This product features sturdy frames, long service life and easy maintenance, suitable for home and commercial use. We support customized sizes and colors, welcome wholesale orders, and provide cost-effective window solutions for various construction projects.

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