Qingdao Wintergarten Architecture Technology Co., Ltd.
Qingdao Wintergarten Architecture Technology Co., Ltd. is a leading Chinese integrated building materials service provider, focusing on three core areas – winter gardens (conservatories), doors & windows, and waterproofing – integrating R&D, production, and sales. The company operates three manufacturing bases:
- Tianjin Steinbach Wintergarten Technology Co., Ltd.
- Tianjin Heffehl New Material Technology Co., Ltd.
- Weifang Jinbo Waterproof Material Co., Ltd.
Foreign Trade Hub · Strategically Located in Qingdao
The company has established its headquarters and core foreign trade operations in Qingdao, Shandong Province, leveraging the strategic advantages of Qingdao Port. Qingdao Port is the largest comprehensive port in northern China. According to 2025 data, its cargo throughput ranks fourth globally. By basing our foreign trade division here, we benefit from economies of scale, access to top international trade talent, competitive sea freight rates, and the ability to respond quickly to global customers – enabling smoother international cooperation and more efficient product delivery.
German Technology · Deep Partnership
Qingdao Wintergarten Architecture Technology Co., Ltd. is the official technical cooperation partner in China of Steinbach GmbH & Co. KG, Germany (https://www.steinbach-wintergarten.de). Since 2008, Steinbach’s patented technologies and over 80 years of experience in aluminum‑clad wood winter gardens have been introduced to China through us, continuously empowering local manufacturers. Among the top 10 aluminum‑clad wood door & window manufacturers in China, 70% are shared customers of Qingdao Wintergarten and Steinbach – the strongest testament to our technology integration capabilities and market influence.
Sino‑German Joint Venture · Quality Benchmark: Tianjin Steinbach Wintergarten Technology Co., Ltd.
Tianjin Steinbach Wintergarten Technology Co., Ltd. is a Sino‑German joint venture founded by Steinbach GmbH & Co. KG (Germany), Qingdao Wintergarten Architecture Technology Co., Ltd., and a seasoned entrepreneur with over 30 years of deep experience in China’s aluminum‑clad wood industry. The production base is located in Jizhou District, Tianjin, sharing a dedicated 12,000 m² modern facility with Tianjin Heffehl New Material Technology Co., Ltd. The region offers a well‑established industrial ecosystem for aluminum, timber, and mechanical processing – a solid foundation for high‑quality manufacturing.
All three partners contribute their strengths for mutual success:
- German side: Full technical support and process standards.
- Qingdao Wintergarten: Technical support and international market development, leveraging years of technical service and foreign trade experience.
- Chinese partner: Sales and customer relations in the Chinese market, backed by strong local channel resources.
From production to design, we fully adopt German original equipment, German original software and databases, and strictly follow German manufacturing processes, ensuring every product meets the highest industry standards.
High‑End Door & Window Expert: Tianjin Heffehl New Material Technology Co., Ltd.
Tianjin Heffehl New Material Technology Co., Ltd. specializes in high‑end door and window manufacturing, with product lines covering aluminum‑clad wood windows & doors, system aluminum alloy windows & doors, and wood‑clad aluminum windows & doors. The production lines are fully imported from Germany and Italy, and all design work is done using specialized software. The company shares the 12,000 m² facility with Tianjin Steinbach. The products can perfectly complement winter gardens as a one‑stop solution, are sold through over 60 distributors across China, and also form an important growth engine for our foreign trade business.
The Waterproofing Foundation: Weifang Jinbo Waterproof Material Co., Ltd.
A winter garden’s outstanding performance depends half on thermal insulation and the other half on reliable waterproofing. The company’s subsidiary, Weifang Jinbo Waterproof Material Co., Ltd., is a specialized new‑type waterproofing material manufacturer integrating production, R&D, sales, application, and after‑sales service.
We own an advanced domestic (JX SBC-120) series high‑grade production line for polymer polypropylene (polyester) waterproofing membranes, with an annual designed capacity of 6 million square meters. In addition, we have multiple advanced production lines mainly producing the following new waterproofing materials:
- PET special wet‑laid polyester composite waterproofing membrane
- (JX Bitufix) self‑adhesive polymer modified bitumen waterproofing membrane
- (JX BAC) self‑adhesive polyethylene waterproofing membrane
- (JX BAC) polymer composite self‑adhesive waterproofing membrane
- (JX BAC) wet‑laid composite double‑sided self‑adhesive rubberized asphalt waterproofing membrane
- Polyvinyl chloride (PVC) waterproofing membrane
At the same time, we offer a full range of waterproof coatings: colored polyurethane waterproof coating, “Shui Wu Nai” 5‑in‑1 colored high‑elastic waterproof coating, JS composite waterproof coating, cementitious capillary crystalline waterproof coating, water‑based 951 waterproof coating, and many more – totaling dozens of waterproofing materials to meet the demanding needs of various engineering applications.
Partnership Vision · Creating Excellence Together
We understand that an outstanding partner is not merely a product supplier but a co‑creator of value. Relying on our three manufacturing bases, German core technology, global procurement and logistics network, and nearly two decades of technical accumulation, Qingdao Wintergarten Architecture Technology Co., Ltd. is committed to becoming your most trustworthy strategic partner.
- Technology empowerment – win from the start: Share Germany’s 80+ years of winter garden patented technology + Italian/German high‑end door & window production line expertise + a complete waterproofing solution portfolio, giving your product line fast access to international competitiveness, shortening development cycles, and lowering trial‑and‑error costs.
- Dual advantages of cost and efficiency: Leverage China’s full‑industry‑chain supply system + Qingdao Port as a global shipping hub to offer highly cost‑effective products and agile delivery. Whether batch orders or urgent replenishment, we handle them with ease.
- Market synergy and channel sharing: Whether you are a partner of our 60+ established distributors in China or an international trader, we can work together to expand markets, share brand resources and customer leads, and drive mutual growth.
- Full life‑cycle service – worry‑free: We provide one‑stop, end‑to‑end services – from product customization, technical training, and application guidance to after‑sales support. Any issue is responded to within 24 hours, and a solution is provided within 48 hours.
- Long‑term commitment – growing side by side: We care not only about orders but also about your long‑term success. Regular technical exchanges, joint product development, priority production scheduling – choosing Qingdao Wintergarten means choosing a partner that evolves and wins together with you.
Whether you are a door & window manufacturer seeking technology upgrades, a brand owner looking to introduce high‑end winter gardens, or an engineering general contractor needing one‑stop waterproofing solutions, we sincerely look forward to shaking your hand and working together to define new heights in building envelope systems.
Qingdao Wintergarten – Connecting German Precision Engineering with Chinese Smart Manufacturing, Empowering Your Excellence.