Casement Energy Saving Windows

When selecting windows that balance thermal performance with architectural charm, casement designs paired with advanced glazing technologies stand out. Our range encompasses solutions like Low-E Coated Energy Efficient Windows, which use microscopically thin metallic layers to reflect interior heat while allowing natural light to pass through. For enhanced noise reduction and thermal stability, Insulated Tempered Glass Energy Saving Windows employ dual or triple panes with argon-filled cavities and toughened glass for added safety. Homeowners looking to reduce utility bills will appreciate our tailored Residential Energy-efficient Windows, designed to meet strict ENERGY STAR criteria without sacrificing curb appeal. Meanwhile, property developers and facility managers can explore Commercial Energy Saving Windows engineered for large-scale projects, where long-term operational savings and compliance with building codes are paramount.


Our Casement Energy Saving Windows combine formidable structural integrity with effortless ventilation control. Each sash is compression-sealed on four sides when closed, creating an airtight barrier that dramatically reduces air leakage compared to traditional sliding or double-hung models. The hardware allows the window to swing open fully, directing fresh air into living spaces while the multi-point locking system reinforces security. The fusion-welded uPVC or thermally broken aluminum frames maintain their shape in extreme weather, preventing warping and ensuring consistent performance year after year. Operators benefit from the clean, uncluttered sightlines that casement configurations provide, maximizing panoramic views and daylight ingress.

Key Product Specifications

  • Frame materials: multi-chamber uPVC with galvanized steel reinforcement or thermally broken aluminum with polyamide insulation strips
  • Glazing options: double-pane (4-season), triple-pane (arctic grade), with soft-coat low-emissivity coating and warm-edge spacers
  • Gas fill: 90%+ argon or krypton for reduced conductive heat transfer
  • Glass thickness: 4 mm / 5 mm tempered, laminated acoustic interlayers available
  • Seal system: continuous EPDM bubble and fin gaskets, achieving air permeability of less than 0.3 cfm/ft²
  • Hardware: corrosion-resistant stainless steel friction hinges, multi-point locking with shootbolts
  • Color finishes: smooth or woodgrain foil laminates in over 40 standard RAL colors; dual-color capability

Performance Metrics

Parameter Double Glazed (uPVC) Triple Glazed (Aluminum) Standard
Whole-window U-factor 0.27 BTU/hr·ft²·°F 0.18 BTU/hr·ft²·°F NFRC 100
Solar Heat Gain Coefficient (SHGC) 0.42 0.33 NFRC 200
Visible Transmittance 0.58 0.51 NFRC 200
Condensation Resistance 62 73 AAMA 1503
Air Leakage (AL) ≤ 0.2 cfm/ft² ≤ 0.15 cfm/ft² ASTM E283
Water Penetration Resistance 12 psf (DP 50) 15 psf (DP 65) ASTM E547
Sound Transmission Class (STC) 34 38 ASTM E90
Operating Force ≤ 5 lbs ≤ 5 lbs AAMA 902

Installation & Compatibility

  • Rough opening sizes: custom manufactured to within 1/8-inch tolerance
  • Nailing fin or block frame installation for new construction; retrofit frames for replacement projects
  • Integration with standard wall thicknesses from 2x4 to 2x6 framing
  • Compatible with most smart home automation systems for motorized actuators
  • Covered by a 20-year limited warranty on glass seal integrity and a 10-year warranty on frame and hardware

Each order is accompanied by detailed installation guides and technical support to ensure pre-installation inspection and weatherproof integration. With advanced manufacturing tolerances and rigorous quality control, these casement windows deliver measurable energy savings while enhancing the quiet comfort of any room.

Hot Products

  • Fluorocarbon Coated Aluminum Alloy Windows

    Fluorocarbon Coated Aluminum Alloy Windows

    Duoping is a professional manufacturer and supplier, delivering high-quality fluorocarbon coated aluminum alloy windows with advanced three-coat two-bake technology. This product features exceptional weather resistance and long-lasting color, ideal for high-end villas and coastal projects. We support customized designs and welcome wholesale orders, providing premium window solutions for luxury construction procurement.
  • Flexible Warm edge Glass

    Flexible Warm edge Glass

    Duoping stands as a professional manufacturer and supplier, delivering high-quality flexible warm edge glass with advanced polymer sealant technology. This product adapts to curved frames, eliminates cold bridges, and offers stable energy-saving performance for complex building projects. We provide customized solutions and welcome wholesale orders, serving retrofitting and cold-region construction needs with reliable quality.
  • Super Energy-saving Glass

    Super Energy-saving Glass

    Duoping is a reliable manufacture and supplier of Dopin super energy-saving glass, boasting advanced multi-cavity design and strict quality control. It integrates Low-e coating and argon filling for excellent thermal insulation and soundproofing. We offer customized solutions and support wholesale orders, fitting high-energy-saving building procurement needs.
  • Energy-saving Windows

    Energy-saving Windows

    As a professional manufacturer and supplier, Duoping specializes in energy-saving windows, integrating advanced Low-E insulated glass and multi-layer thermal insulation sealing technology. With excellent thermal insulation performance and low energy consumption, these windows are widely used in residential, office and hotel projects. We offer customized services for glass, frames and opening methods, accept wholesale orders, and deliver high-quality, energy-efficient window solutions for various construction needs.
  • Ultra-clear Glass

    Ultra-clear Glass

    Duoping stands as a professional manufacturer and supplier of ultra-clear glass, equipped with advanced low-iron control and high-precision processing technologies. This high-quality product features 91.5%-93% light transmittance and no greenish tint, perfect for high-end construction projects like villas and star-rated hotels. We provide customized sizes and processes, with strict quality checks ensuring stable performance. Wholesale orders are supported, delivering premium glass solutions for global high-end building procurement.
  • Interior Aluminum Alloy Door

    Interior Aluminum Alloy Door

    Duoping is a professional manufacturer and supplier of interior aluminum alloy doors, with advanced processing technology and strict quality control. It provides customized solutions featuring sound insulation, durability and modern looks, suitable for residential and commercial spaces. Wholesale orders are available, along with reliable after-sales service to meet diverse user needs.

Send Inquiry

X
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Privacy Policy