Casement Window
Premium construction and elegant design,
DERCHI's custom casement windows maximize airflow and offer unparalleled exterior views for your home.
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What Is A Casement Window?
DERCHI window and door manufactures casement windows that open from the side with a hinge mechanism. These windows swing outward to provide full ventilation and clear views of the exterior.
Our casement windows seal tightly when closed, which prevents air leakage and reduces energy costs. DERCHI offers custom casement window options that fit various openings in homes and commercial buildings.
Each window features durable hardware and multi-point locking systems for security. The design allows for easy cleaning of both interior and exterior glass surfaces.
Our Casement Window Collection
Explore DERCHI's complete range of custom casement windows designed for different architectural styles and functional requirements. As experienced casement window manufacturers, we offer various configurations, materials, and opening mechanisms to suit your specific needs.
Key Features of DERCHI Casement Windows
Our custom casement windows combine functionality with elegant design. As leading casement window manufacturers, DERCHI delivers products that enhance your living space while providing practical benefits for everyday use.
Energy Efficiency
Casement windows create tight seals when closed, preventing air leakage and reducing energy costs. The compression seal design outperforms many other window styles for temperature control.
Superior Ventilation
Windows open fully and can be adjusted to direct airflow into your home. This design captures more breeze than sliding windows, especially in cross-ventilation configurations.
Enhanced Security
Built with embedded frame hooks and multi-point locking systems that resist forced entry. The hinge design makes casement windows difficult to breach from outside.
Unobstructed Views
Minimal frame components maximize glass area for clearer outdoor views. Custom casement window designs can span larger openings without center mullions blocking sightlines.
Easy Operation
Crank mechanism allows smooth opening and closing with minimal effort. Controls remain accessible even when windows are installed in hard-to-reach locations.
Easy Maintenance
Design permits cleaning of interior and exterior glass surfaces from inside your home. Hardware components are accessible for routine maintenance and lubrication.
Engineering Precision: Inside DERCHI Casement Windows
At DERCHI window and door, we build our custom casement windows with precision engineering and premium materials. As experienced casement window manufacturers, we focus on combining durability, energy efficiency, and security in every component. Our technical specifications highlight the attention to detail that sets our casement windows apart.
> 1.8mm Aluminum Alloy Frame: Our frames use 1.8mm thick aluminum alloy material that provides structural strength while maintaining a sleek profile. This commercial-grade thickness resists bending and warping even in severe weather conditions.
> Co-Planar Frame and Sash Design: The window frame and sash align on the same plane, creating a flush appearance. This design reduces dust collection points and delivers a modern, streamlined look for both interior and exterior views.
> Anti-Theft Screen Design: Screens attach securely from the inside and cannot be removed from the exterior. This feature maintains security while allowing ventilation through your custom casement window.
> Corner Sealing Technology: Precision corner joints use specialized sealing techniques that eliminate weak points. This construction method prevents water infiltration and increases the frame's structural integrity.
> Triple Weatherstripping System: Three separate weatherstripping barriers create multiple defense lines against air, water, and noise penetration. This system exceeds standard industry requirements for thermal and acoustic performance.
> German WEHAG Hardware: Premium German-engineered hardware components ensure smooth operation and long-term durability. These components undergo testing for 15,000+ open-close cycles to verify performance.
> Double-Glazed Tempered Glass: Our casement windows include dual-pane tempered glass that improves thermal insulation and safety. This construction reduces heat transfer while providing protection against breakage.
> 35mm Wide Thermal Break: Extra-wide thermal barriers between interior and exterior aluminum surfaces minimize heat conduction. This feature significantly increases energy efficiency in all climate conditions.
> Six-Point Locking System: Multiple locking points around the window perimeter create a vault-like seal when closed. This comprehensive system enhances security and improves weather resistance by maintaining consistent pressure on all weatherstripping.
Customize Your DERCHI Casement Windows
As experienced casement window manufacturers, DERCHI offers extensive customization options for every aspect of your windows. Our custom casement window designs can be tailored to match your exact specifications for appearance, functionality, and performance requirements.
Colors & Finishes
DERCHI window and door offers a diverse palette of premium finishes for custom casement windows. Our color options include sophisticated neutrals, realistic woodgrains, and distinctive specialty finishes to complement any architectural style.
Our neutral collection features Pearl White, Quartz Gray, and various black options including Starry Sky Black and Black Skin - perfect for contemporary designs. For traditional aesthetics, explore our woodgrain finishes like Black Walnut and Huanghua Pear that provide natural warmth with modern durability.
Statement colors such as Retro Green, Deep Sea Blue, and Mint Gold create architectural focal points, while our coffee-inspired tones add rich sophistication to any space.
As leading casement window manufacturers, we ensure all finishes resist fading and weathering while maintaining their appearance over decades. Each color option undergoes rigorous testing for UV stability and environmental resistance before joining our selection.
Glass Options for DERCHI Casement Windows
DERCHI window and door offers various glass configurations for custom casement windows to meet different requirements for energy efficiency, safety, and privacy. As professional casement window manufacturers, we provide these glass options to enhance the performance of your windows based on your local climate and specific needs.
Single Glass - Basic 5mm glass panel for moderate climates. This option provides standard clarity and light transmission while maintaining a cost-effective solution.
Tempered Glass - Heat-treated glass with four times the strength of standard glass. Breaks into small, dull pieces rather than sharp shards when damaged, increasing safety.
Double-Glazed Glass - Two 5mm panels separated by a 27mm air space with PVDF aluminum spacer. This configuration reduces heat transfer and outside noise penetration.
Triple Glass - Three 5mm glass panels with dual 12mm air spaces. This premium configuration maximizes thermal insulation and sound reduction for extreme climates.
Insulating Glass - Specialized units designed to prevent heat loss. These assemblies use low-emissivity coatings and gas fills to achieve superior energy efficiency ratings.
Laminated Glass - Two glass sheets bonded with a PVB interlayer. This safety glass remains intact when broken, providing security and UV filtration.
Frosted Glass - Acid-etched or sandblasted surface that creates privacy while maintaining light transmission. This option adds decorative elements while obscuring direct visibility.
Window Configuration Options for DERCHI
DERCHI window and door offers multiple configuration options for custom casement windows to accommodate various architectural requirements and functional needs. As experienced casement window manufacturers, we provide these design solutions to maximize natural light, ventilation, and aesthetic appeal for your specific project.
Single Casement - One outward-opening sash provides full ventilation in compact spaces. This basic configuration works well for smaller openings or when paired in series.
Three-Section Window - Operational casements on both sides with fixed glass in center. This design balances ventilation with uninterrupted views through the central panel.
Combination Window - Two operational casements flank fixed panels in middle and bottom positions. This configuration maximizes glass area while maintaining ventilation options.
Large Combination Window - Operational casements at sides with fixed panels in center, top, and bottom. This design suits picture windows that require ventilation capability.
Wide Combination Window - Operational casements at both ends with multiple fixed panels between. This extended design works for large wall sections requiring limited ventilation points.
Left Sliding Window - Single sash slides leftward along horizontal track. This space-efficient design requires no clearance area for swing operation.
Right Sliding Window - Single sash slides rightward along horizontal track. This configuration mirrors the left sliding option for symmetrical installations.
Left-Opening Composite Window - Bottom-left operational casement with remaining area as fixed glass. This asymmetrical design provides focused ventilation without sacrificing overall glass area.
Right-Opening Composite Window - Bottom-right operational casement with remaining area as fixed glass. This configuration mirrors the left-opening composite for installation flexibility.
Hexagonal Special Window - Unique six-sided design with double casement windows in center. This distinctive shape creates architectural interest while maintaining functionality.
Hardware Options for Casement Windows
DERCHI window and door offers high-performance hardware components for all custom casement windows. As professional casement window manufacturers, we provide these specialized hardware options to ensure smooth operation, enhanced security, and lasting durability. Each casement window hardware component undergoes rigorous testing to maintain DERCHI's quality standards.
Custom Handles - Independently developed handles with ergonomic grip design. These hardware components offer smooth operation while complementing your window's finish with multiple style options.
Precision Transmission Boxes - Proprietary transmission mechanisms that connect handles to locking points. These components transfer motion efficiently, requiring minimal force to operate even large casement windows.
13-Inch Friction Hinges - Flat-profile friction hinges that support window weight evenly. These specialized components hold windows at any desired opening angle without additional supports.
WEHAGE Lock Points - German-engineered locking components that create secure seals. These precision hardware elements prevent forced entry while pressing sashes tightly against weatherstripping for improved insulation.
Custom Casement Window Manufacturing Process
As leading casement window manufacturers, DERCHI window and door follows a rigorous production process for every custom casement window. Our comprehensive workflow ensures precision engineering, quality control at every stage, and exceptional finished products that meet exact specifications. Each window undergoes these seven essential manufacturing phases before delivery.
Surface Treatment
Raw aluminum profiles undergo degreasing, washing, and drying processes to prepare surfaces for finishing. Materials then receive powder coating through an electrostatic application system with three layers for durability. Wood grain finishes require additional vacuum sealing, heat treatment, and film application for authentic appearance.
Profile Processing
Each aluminum profile passes quality inspection before protective film application and thermal barrier insertion. Computer-controlled cutting stations precisely size frame and sash components. After machining operations create hardware channels and drainage paths, corner joints are assembled with specialized adhesives and mechanical reinforcement.
Glass Assembly
Glass sheets undergo cutting, cleaning, and tempering processes with quality checks between each stage. For insulated units, aluminum spacers containing molecular sieves are installed between glass layers. The assembly is sealed with butyl rubber primary seals and structural secondary sealants before argon gas filling and final quality inspection.
Window Sash Assembly
Components are verified against order specifications before assembly. Corner brackets secure frame joints while guide wheels are installed for smooth operation. After glass insertion and adjustment, protective sealant is applied around glass perimeters. Each completed sash undergoes operational testing before cleaning.
Frame Installation
Frame components undergo verification, positioning, and corner bracket installation. After assembly, weather barriers and impact blockers are installed at strategic points. Door frames receive additional reinforcement plates and connection components before undergoing comprehensive quality inspection for dimensional accuracy.
Testing and Sealing
Assembled windows undergo multiple adjustment phases for level positioning, locking mechanisms, and opening functions. After comprehensive testing by technicians and quality control supervisors, perimeter seals are applied and inspected. Hardware components are separately packaged with warranty information and installation guides.
Packaging
Completed windows receive final inspection and photographic documentation. Three protective layers prevent transit damage, with inner cushioning, middle stabilizing materials, and outer impact-resistant covering. Each package receives tracking information before warehouse entry and shipment preparation.
Ready to Enhance Your Home with Premium Windows?
Tell us about your project requirements and receive a personalized quote for DERCHI custom casement windows.
Why Choose DERCHI for Your Casement Windows?
As established casement window manufacturers, DERCHI combines extensive experience with manufacturing excellence. We deliver custom casement windows backed by verified quality standards, innovative designs, and comprehensive service to provide superior value for residential and commercial projects worldwide.
15+ Years of Experience - DERCHI has specialized in aluminum window systems since 2008, continuously refining our casement window engineering and production processes.
Extensive Manufacturing Facilities - Our 70,000m² factory and 4,000m² showroom house 600+ skilled employees dedicated to window craftsmanship.
Proven Production Capacity - We produce 400,000+ m² of windows annually with 200,000+ successful installations across diverse climates and building types.
International Certifications - Our casement windows meet NFRC, CE, AS2047, CSA, and ISO9001 standards for energy performance, safety, and quality management.
Innovation Leadership - DERCHI holds 100+ national patents covering invention, appearance, and design innovations in window technology.
Industry Recognition - Our company has received 50+ industry awards acknowledging our contributions to window manufacturing excellence.
Dedicated R&D Team - Our 20+ window engineering specialists continuously develop improved materials, designs, and production methods.
Global Distribution Network - DERCHI serves customers in 100+ countries through 700+ distributors with localized product support.
Premium Component Sourcing - We partner with world-leading hardware and raw material suppliers to ensure component reliability.
Rigorous Quality Control - Every custom casement window undergoes 100% inspection before shipment to verify performance and finish quality.
End-to-End Service - DERCHI provides comprehensive support from initial order through manufacturing, delivery, and after-sales assistance.
Successful Casement Window Projects
Explore how DERCHI custom casement windows transform residential and commercial spaces worldwide. As experienced casement window manufacturers, we've delivered premium window solutions for diverse architectural styles across more than 200,000 projects. Each case demonstrates our commitment to quality, performance, and customer satisfaction - from luxury homes to large-scale commercial developments.
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This is a villa project of Guangdong Dejiyoupin Doors and Windows (Derchi) in Las Vegas, USA. The main products used are aluminum entry doors, aluminum slide doors, and aluminum glass fixed windows. -
Local Dealers and Popular Brands in Los AngelesDejiyoupin(Derchi) Windows and Doors in Los Angeles offers a wide selection of premium brands and emphasizes professional installation, energy efficiency, and soundproofing. Customer testimonials highlight their reliability and quality serviceDejiyoupin -
I think the American people living in Los Angeles will be familiar with Villa 4430. As a high-end villa complex, do you know that the aluminum doors and windows inside are all produced by Dejiyoupin Doors and Windows? -
This is the project acceptance status of our DERCHI DOORS AND WINDOWS when we visited our customers in Los Angeles before going to the IBS exhibition in the United States in February 2025.
Frequently Asked Questions About Casement Windows
Q: How does casement window open?
A: DERCHI casement windows open outward from a side hinge, operated by a precision crank mechanism that requires minimal force. The design allows windows to open fully at various angles for maximum ventilation control.
Q: Does the casement window have screen?
A: Yes, DERCHI casement windows feature anti-theft screens that attach securely from the inside. These screens cannot be removed from the exterior while allowing full ventilation benefits.
Q: Where can we install casement window?
A: Casement windows work in both residential and commercial buildings. They suit various room types including bedrooms, living areas, kitchens, and offices where ventilation and unobstructed views are desired.
Q: Is the casement window safe?
A: DERCHI casement windows incorporate six-point locking systems and German WEHAGE hardware for superior security. The embedded frame hooks and multi-point locking design resist forced entry attempts.
Q: How long does the entire production cycle take?
A: DERCHI's seven-phase manufacturing process for custom casement windows typically requires 2-3 weeks from order confirmation to shipment, depending on customization requirements and order volume.
Q: What are the advantage of casement window?
A: Casement windows provide energy efficiency through tight seals, maximum ventilation, unobstructed views, enhanced security, easy operation, simple maintenance, and design versatility for various architectural styles.
Q: How many colors are available for casement window?
A: DERCHI offers twelve premium color options including neutrals (Pearl White, Quartz Gray), woodgrains (Black Walnut, Huanghua Pear), and statement colors (Retro Green, Deep Sea Blue) for custom casement windows.
Q: Does the casement window have waterproof function?
A: Yes, DERCHI casement windows feature triple weatherstripping barriers and specialized corner sealing technology that prevent water infiltration even during severe weather conditions.
Q: Can I customize the glass type for the casement window?
A: Yes, DERCHI offers seven glass options including single glass, tempered glass, double-glazed, triple glass, insulating glass, laminated glass, and frosted glass to meet specific privacy, safety, and energy efficiency needs.
Q: What's the price of casement window?
A: Pricing varies based on dimensions, glass type, hardware options, and quantity. DERCHI provides personalized quotes after consultation about your specific project requirements and specifications.
Q: How long does it take to install the casement window?
A: Professional installation of DERCHI casement windows typically takes 1-2 days per 10 windows, depending on the installation complexity, building conditions, and window configurations.
Q: Does casement window require regular maintenance?
A: DERCHI casement windows require minimal maintenance. Annual hardware lubrication and occasional cleaning of tracks ensures optimal operation. All glass surfaces can be cleaned from inside the building.
Explore More Window & Door Resources
Discover additional insights about casement windows and other DERCHI products through our collection of expert articles. As leading casement window manufacturers, we share valuable information about window selection, installation techniques, energy efficiency considerations, and design trends to help you make informed decisions for your projects. These resources complement our custom casement window solutions with practical knowledge for homeowners, architects, and builders.
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Have you ever wondered what makes casement windows so popular? These versatile windows offer a range of benefits, from improved ventilation to enhanced aesthetic appeal. But with so many sizes available, how do you choose the right one for your home? Understanding standard casement window sizes is c -
Ever struggled with a door that sticks or windows that let in drafts? These common household frustrations often trace back to one critical factor: improper measurements. Did you know that installing a non-standard door can cost up to 50% more than using standard sizes? Understanding standard measure -
Have you ever struggled to decide between windows and sliding glass doors for your home? You're not alone. Choosing the right type of window or door can greatly impact your home's aesthetics, functionality, and energy efficiency. In this article, we'll dive into an in-depth comparison of windows and
