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Meta Title: Jusen Aluminum Windows Manufacturer – OEM/ODM Custom Solutions
Meta Description: Jusen Doors & Windows Manufacturing Co., Ltd. offers 20 years of aluminum window expertise, self-built workshops, OEM/ODM services, and global shipping. Request a quote for your custom project.
Slug: aluminum-windows-manufacturer
SEO Keywords: aluminum windows manufacturer, custom aluminum windows OEM, JuSen door and windows, aluminum window factory China, bulk aluminum window supplier
Company Overview – Why Choose Our Aluminum Windows Manufacturing
At Jusen Doors & Windows Manufacturing Co., Ltd., we have spent two decades refining both solid wood processing and aluminum window production under the brand JuSen door and windows. Our factory in China supplies high-end custom doors and windows to global contractors, interior designers, retail dealers, and villa real estate developers through one-stop OEM and ODM customization service.
Our product range includes aluminum alloy casement windows, sliding windows, and tilt-and-turn designs, alongside solid wood entry doors, interior wooden doors, timber door frames, and supporting hardware accessories. Every order receives full personalized customization — we do not rely on generic templates. Our independent design team collaborates with clients to match architectural drawings and local building codes. With North America overseas warehouses, we reduce transshipment delays for projects in the United States and Canada.
B2B clients choose us not simply because we manufacture aluminum windows, but because our 20 years of experience means we understand the specific load-bearing requirements, thermal performance demands, and installation constraints of different regions. When you send an inquiry, our team prepares customized construction drawings and a formal quotation within 24 hours.
Factory Scale and Production Lines Specialized in Aluminum Windows
Self-Owned Workshops with Dedicated Aluminum Processing Lines
Unlike many trading companies that outsource production, we own our manufacturing facilities completely. Our factory campus includes a self-built wood drying workshop, a professional spraying workshop, and a dedicated aluminum processing workshop. This vertical integration allows us to control material selection, machining precision, and finishing quality from start to finish.
In the aluminum processing workshop, we operate multiple production lines that handle cutting, drilling, milling, and assembly simultaneously. Having separate lines for thermal break profile assembly and standard profile fabrication means we can switch between custom residential orders and large commercial projects without cross-contamination of work-in-progress.
Employee Expertise and Production Line Capacity
Our workforce includes experienced machinists, quality inspectors, and assembly technicians who have been with the company for years. Many have completed specialized training in aluminum window fabrication techniques such as corner crimping, sealant application, and multi-point locking system integration.
The factory is designed to balance flexibility with volume. For small-batch custom orders — for example, a villa project requiring 30 unique window sizes — we dedicate one line with close engineer supervision. For bulk supply contracts, we run all lines in parallel, producing up to several hundred frames per day.
Flexible MOQ and Shorter Lead Times
Because we own the workshops and maintain raw material inventory, we offer flexible minimum order quantities. A retail dealer starting a new product line can begin with a trial order of 50 sets. A hotel chain requiring 2,000 standardized windows benefits from our batch pricing and dedicated line scheduling.
Lead times average 15–25 working days for confirmed standard designs. Custom colors, wood grain finishes, or complex geometries may extend to 30–45 working days. Our North America overseas warehouses buffer the final leg of delivery, so clients receive goods faster than typical sea freight from China.
Advanced Equipment for Precision Aluminum Window Manufacturing
CNC Machining and Automated Cutting Systems
Precision starts with the cutting stage. We use CNC routers and double-head cutting saws that achieve ±0.2 mm accuracy on profile lengths. The machines are programmed directly from client CAD files, eliminating manual measurement errors. For complex shapes — arched tops, trapezoidal frames, or integrated mullions — our technical team writes the G-code in-house.
Automatic corner crimping machines ensure consistent joint strength across every frame. We have tested hundreds of combinations of profile wall thickness and corner angle settings to build a database of machine parameters. This means whenever a new profile arrives, we can set up the crimping machine in minutes rather than hours.
Surface Treatment and Spraying Technology
Our self-built spraying workshop houses an electrostatic powder coating line and an anodizing line. For clients requiring RAL colors, wood grain finishes, or metallic effects, we apply powder coating in a controlled environment that prevents dust contamination.
The powder coating process begins with a 9-stage chemical pretreatment that cleans and etches the aluminum surface. After coating, panels pass through a curing oven at 200°C, which produces a hard, UV-stable finish. For thermal break windows, we also apply the coating before assembling the polyamide bars, ensuring no raw aluminum is exposed in the final product.
In-House Assembly and Testing Stations
Every aluminum window we produce undergoes assembly in our workshop under direct engineer supervision. We do not outsource any assembly step. After assembly, each unit moves to our testing station where we measure air-tightness, water-tightness, and wind load resistance using calibrated equipment.
A typical test cycle includes a static pressure test for 15 minutes, a water spray test at 400 Pa, and a cycle test for multi-point locks. Units that fail are immediately tagged for rework and re-tested before packing. This process ensures that only windows meeting our international performance standards leave the factory.
Annual Production Capacity – Supplying Large-Scale Projects
Total Output per Year for Aluminum Windows
Our factory produces more than 80,000 sets of aluminum windows annually across all product lines. This capacity allows us to serve villa real estate developments, hotel chains, and residential tower complexes without delaying smaller orders.
We track production output by profile type, window style, and destination market. This data helps us allocate workshop capacity months in advance. When a developer submits a project timeline requiring 500 windows delivered in six weeks, we schedule dedicated line time to meet that commitment.
Simultaneous Order Fulfillment for Multiple Clients
Parallel production lines mean that one client’s custom residential order processes alongside another client’s commercial bulk contract. Our production planning team sequences orders by material availability, complexity, and shipping deadline.
We commit to on-time delivery backed by our full shipping damage after-sales guarantee. If windows arrive damaged due to improper handling during transit, we replace or supply parts at no extra cost, subject to photo evidence and agreed terms.
Logistics Support – Overseas Warehouses and Global Shipping
Our North America overseas warehouses stock commonly requested profiles, hardware kits, and spare parts. For clients in the United States and Canada, this reduces last-mile delivery time by up to two weeks compared to shipping directly from China.
We partner with experienced freight forwarders who understand crating requirements for aluminum windows. Each frame receives custom foam wrapping, plywood corner guards, and container dunnage to prevent movement during sea freight. For air freight orders, we use reinforced corrugated packaging that is both lightweight and protective.
Quality Control Systems Across Every Aluminum Window Line
Raw Material Inspection and Supplier Audits
Quality begins with raw material selection. We source aluminum profiles only from certified suppliers who provide mill certificates for each batch. Upon arrival, our inspection team checks profile dimensions, surface condition, and alloy grade using digital calipers, surface roughness testers, and spectrometer verification.
Hardware accessories — hinges, handles, multi-point locks, and actuators — are tested separately. We cycle each lock type 10,000 times in our laboratory to confirm durability before approving it for production.
In-Process Quality Checkpoints
We have established mandatory checkpoints after cutting, welding (for steel-reinforced frames), surface treatment, and assembly. At each checkpoint, operators use torque meters to verify screw tightness, gap gauges to check sealant thickness, and spray booths to simulate rain infiltration.
A digital record is maintained for every window frame. This traceability allows us to identify which operator, machine, and material batch contributed to any quality issue.
Final Product Testing and Packaging Standards
Every completed aluminum window undergoes performance tests that comply with international standards. We test water penetration resistance at pressures up to 600 Pa, air leakage at 100 Pa, and wind load resistance up to 2400 Pa for structural integrity.
Packaging follows a standardized protocol: each window is wrapped in protective PE foam, then encased in a custom-sized plywood crate with corner guards. For glass units, we add edge protectors and desiccant packs. This multi-layer packaging is the reason our shipping damage rate remains below 0.5%.
Core Client Types – B2B Partnerships We Specialize In
Contractors and Construction Companies
General contractors and construction firms choose JuSen for aluminum windows because we deliver project-wide consistency. Whether the scope is a 12-story residential tower or a 50-villa resort, we provide bulk supply with custom construction drawings and a formal quotation within 24 hours.
Our engineering team reviews architectural drawings and produces detailed shop drawings for contractor approval. We then manufacture all openings to match the approved sizes, including allowances for rough openings and waterproofing details. This seamless handoff eliminates the need for contractors to re-measure or modify openings on site.
Interior Designers and Architects
Design-focused clients turn to us for custom sizes, unique profile shapes, and color matching that standard catalogs cannot provide. Our independent design team collaborates with architects to refine window details: slimmer sightlines, hidden hinges, flush frames, or integrated shading pockets.
We provide real material samples with actual finish swatches before production begins. This allows designers to confirm color, texture, and light reflection against their interior finishes. Our engineering team can also suggest profile reinforcement strategies when larger spans exceed standard structural limits.
Retail Dealers and Distributors (Global)
Retail dealers and wholesale distributors value our private label, OEM, and wholesale programs. We apply your branding on frames, cartons, and user manuals. Minimum order quantities for custom branding remain flexible — a dealer can start with a 50-set pilot order before scaling up.
We also offer regional exclusivity arrangements for distributors who commit to volume targets. Our factory handles all manufacturing, packaging, and logistics, so your team focuses on sales and installation. Packaging can be customized with your SKU codes, barcodes, and assembly instructions.
Certifications and Compliance – Meeting Global Standards
Product Certifications
Our factory operates under ISO 9001 quality management certification. Aluminum windows produced at our facility pass CE testing required for European projects. For clients in the Middle East and Asia, we offer thermal break profiles with polyamide bars that meet local energy efficiency codes.
For solid wood doors, we comply with FSC certification requirements when specified, and we maintain documentation for timber sourcing that satisfies EU Timber Regulation due diligence.
Testing Compliance for Different Markets
North American projects often require ASTM compliance for impact resistance and energy performance. We test our aluminum windows against ASTM E330 (structural performance), ASTM E283 (air leakage), and ASTM E547 (water penetration). Test reports from accredited laboratories are available for project submittals.
For markets with extreme conditions — such as the Middle East — we supply windows with sand resistance ratings and enhanced thermal break profiles that reduce heat transfer by up to 40% compared to standard designs.
Continuous Improvement and Third-Party Audits
We regularly invite third-party inspection agencies such as SGS or Bureau Veritas for factory audits on behalf of our clients. These audits confirm our production capacity, quality management processes, and social compliance standards.
Our engineering team monitors updates to building codes and energy regulations across major markets. When a new standard emerges, we adjust our profile designs, glass specifications, and testing protocols accordingly.
Frequently Asked Questions About Our Aluminum Windows Manufacturing
Can your factory produce aluminum windows with custom colors and thermal break profiles?
Yes. Our aluminum workshop supports full RAL color customization, wood grain finishes, and polyamide thermal break bars. Simply share your color code or provide a physical sample, and we will match it. For thermal break applications, we use polyamide strips with a minimum 24 mm width to achieve U-values below 1.8 W/m²K depending on glass specification.
What is your typical lead time for a standard aluminum window order?
For confirmed designs and quantities, production usually takes 15–25 working days. Custom colors, complex profiles, or large-volume orders may require 30–45 working days. We coordinate with our North America warehouse to reduce transshipment time for clients in North America, often cutting total delivery time by 10–15 days compared to direct shipments from China.
Do you offer private label packaging and OEM branding?
Absolutely. We provide private label service — your logo on frame extrusions, cartons, and user manuals. Our MOQ for custom branding starts at 100 sets, though we can accommodate lower volumes for pilot programs. Contact our team to discuss your specific branding requirements and we will prepare a cost breakdown.
How do you handle shipping damage claims?
We provide a full shipping damage after-sales guarantee. If damage occurs during transit, you submit photo evidence within the agreed claim period, and we replace the damaged units or supply replacement parts at no extra cost. The guarantee covers manufacturing defects and damage caused by improper crating or handling before delivery to the carrier.
Can your technical team produce construction drawings for my project?
Yes. Within 24 hours of receiving your inquiry, we prepare customized construction drawings and a formal quotation. Our engineers work directly with your architect or project manager to match specifications. We provide both 2D shop drawings and 3D model files (STEP or IFC format) for BIM integration when required.
What is the minimum order quantity for a first-time buyer?
For new clients, our minimum order quantity is 50 sets for standard aluminum windows. For custom designs or special profiles, we recommend a minimum of 30 sets to optimize production efficiency. We can discuss lower quantities for sample orders or prototype windows — simply reach out with your project details.
Which glass types do you supply with your aluminum windows?
We supply single glazing, double glazing, and triple glazing with options for low-E coating, argon gas fill, laminated safety glass, and tempered glass. Glass unit thickness ranges from 6 mm to 44 mm depending on window profile and project requirements. We also offer acoustic-rated glass for noise-sensitive projects.
Start Your Bulk Aluminum Windows Project – Request a Quote
Your project deserves an aluminum window manufacturer that combines 20 years of experience, self-owned workshops, and a team dedicated to full customization. At Jusen Doors & Windows Manufacturing Co., Ltd., we deliver exactly that — from initial construction drawings to final packaging for global shipping.
Contact Our Team for a free consultation on your project requirements. We will review your architectural drawings, confirm window specifications, and provide a formal quotation within 24 hours. Whether you need 50 custom windows for a villa or 2,000 standardized frames for a hotel development, our factory is ready to serve.
Click Request a Quote to receive customized construction drawings tailored to your project site. Our engineers will work with your team to ensure every dimension and performance requirement is met.
References
[1] Jusen Doors & Windows Manufacturing Co., Ltd. – Company Overview. https://doorwoodendoors.com
[2] ISO 9001 Quality Management Systems – Requirements. International Organization for Standardization. https://www.iso.org/standard/62085.html
[3] ASTM E330 – Standard Test Method for Structural Performance of Exterior Windows. ASTM International. https://www.astm.org/e0330-14.html
[4] CE Marking for Construction Products – Regulation (EU) No 305/2011. European Commission. https://ec.europa.eu/growth/single-market/european-standards/harmonised-standards/construction-products_en
[5] Thermal Break Polyamide Strips for Aluminum Windows – Technical Data. Ensinger GmbH. https://www.ensingerplastics.com/en/products/insulbar