Years of
Experience
Shandong Changyi Door and Window Engineering Co., Ltd. is a professional manufacturer of high-performance doors and windows for global construction projects. Based at No. 58 Yudong Road, Dongcheng Street, Linqu County, Weifang City, Shandong, China, we design, produce, and customize aluminum alloy doors and windows, vinyl doors and windows, steel and wooden fire-rated doors, and interior wooden doors.
We hold registered entities in both major North American markets. In the United States, our subsidiary Green Windows and Doors, Inc. (Control No. 25176614) was incorporated in the State of Georgia on August 29, 2025, with its principal office in Buford, Georgia. In Canada, our affiliate Green Building Materials Co., Ltd. (Registry No. 10249233) was incorporated under The Corporations Act of Manitoba effective November 5, 2025, with its registered office in Winnipeg. These local entities enable faster commercial response, localized technical support, and dependable after-sales service.
Every product is built in our standardized in-house workshop with advanced equipment and full-process quality control — from raw material sourcing to final packaging — and is certified to CE, ISO, UL, CSA, NFRC, RoHS, and Energy Star standards.
With stable capacity, reliable lead times, and cost-effective bulk or project-based customization for residential, commercial, and industrial applications, we are a trusted Chinese manufacturing partner for clients worldwide.
Number of employees
Floorspace
R&D experience
Machinery
Number of Customers
Changyi's steel fire doors meet UL standards and pass Intertek tests, withstanding fire for 60, 90, and Changyi's steel fire doors meet UL standards and pass Intertek tests, withstanding fire for 60, 90, and 120 minutes. Unmatched quality, ultimate safety, your reliable choice globally.Changyi's steel fire doors meet UL standards and pass Intertek tests, withstanding fire for 60, 90, and 120 minutes. Unmatched quality, ultimate safety, your reliable choice globally.120 minutes. Unmatched quality, ultimate safety, your reliable choice globally.
Discover our premium wood fire door! Meticulously crafted from high - quality wood, it seamlessly blends elegance with top - notch fire resistance. Infuse your living space with both safety and aesthetic charm. It's an ideal choice for those who value a harmonious coexistence of security and style.
Discover WPC Doors! Combining elegance and durability, they resist moisture, wear, and offer stylish designs. Upgrade your space now!
Discover our premium aluminum lift windows! Sleek, durable, and easy to operate. They provide smooth lifting action, optimal ventilation, and a modern touch to your space.
Our vinyl casement windows fully comply with CE, ROHS and NFRC standards. Premium quality assured, they deliver outstanding performance in safety, environmental friendliness and energy efficiency.
Customize Your Dream Garage Door! Choose from a wide array of colors and flexible sizes. Tailor-made to fit your unique style and space needs.
Elevate your living with our Aluminium alloy sliding doors! Boasting high-quality, super-transparent SGCC glass windows, they merge style, durability, and a crystal-clear view.
Discover WPC Doors! Combining elegance and durability, they resist moisture, wear, and offer stylisUpgrade your home with our vinyl sliding windows! Exceptional durability, great energy efficiency, and outstanding soundproofing. A smart choice for you.h designs. Upgrade your space now!
Elevate your living space with our Aluminum Casement Window! Durable, stylish, and energy - efficient. Open to a world of comfort and elegance.
This landmark project is a two-story custom-built luxury residence in Virginia, USA, featuring expansive floor-to-ceiling glazing and elegantly proportioned upper-level windows for sweeping natural light and a distinctly modern character. As the manufacturer of record for the complete window and door package, we supplied custom-fabricated aluminum windows and doors — engineered, tested, and delivered to North American standards.
We supplied the complete window package for this project，Every unit is certified to AAMA/WDMA/CSA 101/I.S.2/A440 (NAFS) — the North American fenestration performance standard covering air, water, structural, and thermal performance — and meets ENERGY STAR Canada energy-efficiency requirements for cold-climate performance. Manufacturing runs under an ISO 9001 quality management system, with CE marking for full international conformity.
A landmark large-scale residential development in Cebu, Philippines, comprising 3,250 apartment units across multiple high-rise towers. Built for the tropical climate and high-density living, the project demanded a window and door package that combines volume, uniformity, durability, and strict quality control. As the manufacturer of record for the complete steel door and PVC window package, we supplied thousands of units — engineered, tested, and delivered to meet a single demanding construction schedule.
Shipment to customers in Saudi Arabia and the United Arab Emirates
Shipment from American customers
Shipment from Canadian customer
Customers visit the factory
Customers visit the factory
Steel production prevention
Steel production prevention
Aluminum alloy door and window production
Aluminum alloy door and window production
Robust fire door construction: The steel fire door is heavy-duty and provides excellent thermal insulation. The smoke seal fits perfectly, the automatic door closer operates smoothly, and it is a firstclass firesafety fire door.
I bought windows from this supplier and everything went perfectly. The communication was smooth, and they prepared the goods exactly according to my specific requirements. The shipment arrived in perfect condition without any damage. I highly recommend this store and will definitely buy from them again.
I love my new aluminum windows and doors – they're super strong and keep the heat out perfectly. My home has been so much quieter and more energy-efficient ever since they were installed.
We got a perfect custom fit – the supplier tailored the doors and windows to our exact sizes and design. The measurements were spot on, and having the technical drawings beforehand made things so much easier for our contractor.
Shandong Changyi Expands in Latin America at the Mexican Building Materials Expo — vinyl Windows, Thermally Broken Aluminum Doors and Windows, and Fire-Rated Doors Take Center Stage Mexico City, Mexico — Shandong Changyi Door and ...
Riyadh, Saudi Arabia-Shandong Changyi Doors & Windows Engineering Co., a leading Chinese manufacturer in the building materials sector, successfully concluded its participation at a prominent construction industry exhibition in Saudi Arabia. The ...
Shandong Changyi Door & Window Engineering Co., Ltd., a leading force in China's building materials and fenestration industry, recently made a significant impact at a prominent building materials exhibition in Mexico. The company's participation ...
Last week, our factory had the honor of hosting a delegation from the United Arab Emirates (UAE) for a comprehensive quality inspection of our doors and windows, as well as a review of our production processes. The visit culminated in the signing of ...
Shandong Changyi Door & Window Engineering Co.,Ltd. , a leading player in the door and window manufacturing industry, has recently made a significant stride in its international expansion by establishing an overseas warehouse in the United States...
Shandong Changyi door&window engineering CO.,Ltd, a renowned player in the fire door,aluminum windows and vinyl windows industry, is excited to announce a remarkable achievement in its international business pursuits. The company recently r...
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