Energy-efficient casement, fixed picture and sliding windows with dual or triple Low-E glazing, warm-edge spacers and concealed multi-point hardware.
Engineered for U.S. & Canadian Codes
Custom Aluminum Windows & Doors for North America
NFRC, CSA & ENERGY STAR® certified. Factory-direct for builders, dealers and architects.
Thermal-Break Door Systems
Slim Frames. Wide-Open Living.
Sliding, bifold and entry doors with four-side six-point security locking.
Zero-Error Manufacturing
18,000+ Projects. One Standard.
25+ years of precision engineering, from shop drawings to installation guidance.
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Certified & Tested
- NFRC (USA)
- CSA (Canada)
- ENERGY STAR®
- Hurricane Certified
- ISO 9001
- 100+ Patents
Company Profile
A Window & Door Manufacturer North American Builders Can Verify
Guangdong Dejiyoupin Doors and Windows Co., Ltd. builds the DERCHI brand of high-end aluminum windows, aluminum doors, sunrooms and wooden doors. For more than 25 years our engineering team has turned architectural drawings into precision-built, made-to-order systems.
Certified as a "China Famous Brand" by Xinhua News Agency, DERCHI combines independent R&D, a 180,000 m² production base and a 360-degree quality control system, so U.S. and Canadian buyers receive consistent units, verifiable test reports and dependable delivery on every project.
Our Story
Inside the DERCHI FactoryWatch our enterprise video
180,000m²
Production Base
25+ yrs
Manufacturing Experience
30+
R&D Experts
600+
Skilled Employees
Intelligent Manufacturing
Zero-Error Precision, Built Into Every Frame
Automated cutting, CNC machining and 360-degree inspection keep tolerances tight, so units arrive square, sealed and ready for fast installation on North American job sites.
Industry 4.0 Production Line 
100+ Independently Developed Patents
Including the exclusive four-side six-point lock invention patent for forced-entry resistance.
360-Degree Quality Control
Every profile, corner joint, gasket and glass unit is inspected before crating.
Xinhua "China Famous Brand"
Brand certification awarded by Xinhua News Agency, a world-class media outlet.
International Certification Coverage
NFRC, CSA, ENERGY STAR, hurricane, CE, AS2047 and ISO 9001 across key series.
1,000,000 m²+
Annual production capacity
100+
National patents
360°
Quality inspection coverage
4-side 6-pt
Patented multi-point locking
Product Series
Aluminum Window & Door Systems for Every Opening
Thermally broken profiles, multi-chamber sealing and Low-E insulated glass, configured for residential, multifamily and light-commercial projects across the U.S. and Canada.
Pivot and swing entry doors, lift-and-slide patio doors and folding bifold walls, secured by the patented four-side six-point locking system.
Aluminum Sunrooms
Four-season glass enclosures and patio rooms with structural aluminum frames, insulated roofs and integrated drainage for snow and storm loads.
Explore SunroomsWooden Doors
Solid and engineered interior wood doors that match DERCHI aluminum finishes, giving whole-home projects a single, coordinated supplier.
Explore Wooden Doors Buyer's Specification Guide
How to Specify Aluminum Windows for North American Climates
Match U-factor & SHGC to the climate zone
Ask for NFRC-rated values for the exact frame, glass and spacer combination, not generic catalog figures.
Confirm structural & water performance
Check NAFS (AAMA/WDMA/CSA 101/I.S.2/A440) performance class and design pressure for high-rise or exposed sites.
Plan for coastal & hurricane zones
Specify laminated impact glass and verify the approval your jurisdiction requires before ordering.
Finalize shop drawings before deposit
DERCHI confirms dimensions, operation, hardware and finish in writing to eliminate site surprises.
| Climate Zone | Typical Region | U-Factor | SHGC | Suggested DERCHI Glazing |
|---|---|---|---|---|
| Northern | Upper Midwest, New England, Mountain West | ≤ 0.22 | ≥ 0.17 | Triple Low-E + Argon |
| North-Central | Mid-Atlantic, Lower Midwest | ≤ 0.25 | ≤ 0.40 | Dual Low-E + Argon |
| South-Central | Mid-South, Southwest interior | ≤ 0.28 | ≤ 0.23 | Dual Solar-Control Low-E |
| Southern | Florida, Gulf Coast, Southern California | ≤ 0.32 | ≤ 0.23 | Laminated Impact Low-E |
| Canada | All provinces & territories | ENERGY STAR Canada zone criteria; CSA A440.2 | Triple Low-E + Warm Edge | |
Reference values summarize ENERGY STAR® v7.0 criteria for residential windows and are provided for early-stage planning only. Always verify current program criteria and your local energy code; request DERCHI test reports for the specific series and glass package.
Global Projects
18,000+Completed Global Projects
From Hilton hotels and Beverly Hills residences to large residential communities, DERCHI supports each project end to end: drawing review, R&D, engineering proposals, on-site measurement, production confirmation and installation guidance.
Browse Case Studies
Engineering Delivery
An 8-Step Engineering Process From Drawing to Installation
A standardized workflow with clear sign-offs at every stage, built for contractors and developers who need predictable schedules.
01Drawing Review
Engineers study your plans, elevations and opening schedule.
02Research & Development
Systems are selected or customized for climate, code and design.
03Engineering Proposal
A detailed proposal covering series, glazing and hardware.
04Details Finalized
Shop drawings, finishes and accessories are confirmed in writing.
05Order Confirmation
A partial deposit secures materials and your production slot.
06On-Site Measurement
Rough openings are verified to remove fit-up risk.
07Production Confirmation
Manufacturing, inspection and export crating with photo records.
08Installation Guidance
Drawings, videos and on-site guidance for qualifying projects.
Virtual ShowroomPreview systems before you specify
Whole-House Customization
One-Stop Customization for Every Elevation
Custom Structures & Styles
Unique profiles, oversized panels and special shapes developed for your design.
Whole-Home Packages
Windows, entry, patio and interior doors coordinated in one consistent package.
Personalized Finishes
Choose powder-coat and wood-grain colors, glass types, hardware and private-label logos.
Why Join DERCHI
Grow a Window & Door Business Backed by Data
We are expanding our dealer and distributor network across the United States, Canada and Mexico with showroom, marketing and engineering support.
300+Overseas partners & franchisees
18,000+Successful projects delivered
$435MProject revenue in 2024
25+Years of manufacturing know-how
Canada
USA
Mexico
Foshan HQShowrooms
Flagship Image Stores
Partner showrooms let homeowners and designers see, touch and operate DERCHI systems before they buy.
Customer Feedback
Verified Customer Reviews
Real messages and photos shared by homeowners, contractors and dealers after delivery and installation.
Certifications & Honors
Third-Party Certifications You Can Put in a Spec Sheet
Over 100 national patents, including the exclusive four-side six-point lock invention patent, plus certifications recognized by North American code officials, energy programs and lenders.
NFRCUnited States energy rating
CSACanada product certification
ENERGY STAR®Energy-efficient performance
HurricaneImpact & wind-load certified
ISO 9001Quality management
CEEuropean conformity
AS2047Australian standard
100+National patents
Buyer Questions
FAQ for U.S. & Canadian Buyers
Straight answers to the questions builders, dealers and architects ask most before sourcing aluminum windows and doors.
Talk to a project engineer
Share your drawings, opening schedule and target performance. Our team responds with a recommended system and next steps.
Contact UsAre DERCHI aluminum windows and doors certified for the U.S. and Canadian markets?
Yes. DERCHI product lines hold NFRC (USA), CSA (Canada), ENERGY STAR and hurricane certifications, supported by ISO 9001 quality management and CE marking. Ratings apply to specific product series and configurations, so request the test report for the exact series, glass package and size you plan to specify.
Can you manufacture to imperial dimensions and North American rough openings?
Every DERCHI unit is made to order. Our engineering team works from your architectural drawings in imperial or metric units and confirms every opening, operation type and hardware set on shop drawings before production is released.
Which glazing options suit different North American climate zones?
Northern and Canadian climates typically call for triple-glazed Low-E units with argon fill and warm-edge spacers. Mixed climates usually perform well with dual-pane Low-E argon glass, while southern and coastal regions benefit from solar-control Low-E and laminated impact glass. Always verify current ENERGY STAR and local energy code requirements.
Do you supply windows and doors for hurricane-prone regions such as Florida and the Gulf Coast?
Yes. DERCHI offers hurricane-certified series with laminated impact glass and reinforced frames. Before ordering, confirm which approval your jurisdiction requires, such as Florida Product Approval or a Miami-Dade NOA, so we can match the correct tested configuration.
How are orders shipped to the USA and Canada, and is installation support available?
Units are protected in export crates and shipped by container to North American ports. Each project includes installation drawings and video guidance, and qualifying commercial projects can receive on-site installation guidance from our technical team.
Who does DERCHI North America work with?
We supply home builders, developers, general contractors, architects, window and door dealers and custom-home owners. Established dealers can also apply for our partner program, which includes showroom support, marketing materials and project engineering assistance.
Planning a Project in the U.S. or Canada?
Send your drawings to [email protected] and get a code-ready system recommendation from the DERCHI engineering team.