Custom Double Door Window Manufacturer & Supplier | Factory Direct | Jusen

10 min read

The last time we loaded a 40-foot container with double door windows for a hotel project in the Middle East, the client’s site manager called us mid-loading. He wanted to know if we could swap the handle finish on 120 units from brushed nickel to matte black. The production line stopped. We made the change in 48 hours. That flexibility does not come from a trading company. It comes from owning the machines, the profile dies, and the glass tempering line.

When you source double door windows for a commercial project, you are not buying a product. You are buying a guarantee that the product will arrive on time, meet local code, and survive the weather conditions of your site. This article explains how we structure our factory operations around those three guarantees—and what that means for your bottom line.

Direct Factory Supply: Eliminating the Middleman for Double Door Window Projects

Every trading company you have ever dealt with has the same pitch: “We have strong relationships with factories.” What they do not tell you is that their margin sits between you and the production line. We do not have that problem because we are the production line.

Our factory price for double door windows reflects actual material costs—aluminum billet, glass, hardware, gaskets—plus our labor and overhead. There is no 10% or 15% markup layered on top for an intermediary. For a contractor ordering 500 units, that difference pays for the installation crew on two floors.

Transparent Costing for Bulk Orders

When you request a quote from us, we break down the cost structure clearly: profile cost per kilogram, glass type and thickness, hardware brand and model, and surface treatment. You see exactly what you are paying for. If you want to reduce costs, we show you where the adjustments can be made—switching from a branded hinge to a comparable alternative, for example, or reducing the number of chambers in the profile.

Price Stability Across Large Volumes

Construction projects run for months. Aluminum prices fluctuate weekly. We hold raw material inventory for our confirmed orders, which means the price we quote you today stays valid for the duration of your project schedule. We learned this lesson after a 2018 project where aluminum prices jumped 12% mid-production. We absorbed the difference. Now we lock in material pricing at contract signing.

FCL & LCL Shipping Options

Not every buyer needs a full container. We ship both FCL and LCL from our factory in China. For smaller orders, LCL allows you to test the market without committing to high inventory. For large developments, FCL reduces per-unit freight costs. Our export team calculates both options for you and recommends the most economical choice based on your order volume and delivery timeline.

Custom Double Door Window Manufacturing: From Casement to System Windows

A double door window is not a single product category. It is a configuration of profiles, glass, hardware, and seals that must be engineered for a specific opening size, wind load, and aesthetic requirement. We manufacture thermal-break aluminum double door windows, solid wood double door units, and aluminum alloy entrance doors with double door configurations.

The customization options go beyond size. We match RAL colors for the aluminum profiles. We source hardware from specific brands—such as Sobinco, Roto, and GU—if your architect specifies them. We can even produce profiles with custom thermal break widths if your project requires higher energy efficiency ratings.

Thermal-Break Aluminum Double Door Windows

For commercial buildings, thermal-break aluminum is our most requested system. The polyamide strips separate the interior and exterior aluminum surfaces, reducing heat transfer significantly. Our thermal-break double door windows achieve U-values as low as 1.4 W/m²K depending on the glass specification. This matters for LEED certification and local energy codes that are getting stricter every year.

Solid Wood and Custom Villa Double Door Windows

Not every project calls for aluminum. High-end villas and hospitality projects often specify solid wood double door windows for their aesthetic warmth. We manufacture these using kiln-dried hardwoods with proper moisture content control. Wooden doors are not always the cheapest option—for high-humidity coastal areas, buyers should seriously consider aluminum or aluminum-clad wood instead. The maintenance cost of wood in harsh environments can exceed the initial savings.

Custom Color and Hardware Matching

We have matched colors for projects that required specific RAL codes, including metallic finishes that require a two-coat application process. For hardware, we maintain compatibility with major European and Asian brands. If your project specifies a particular lock system or hinge, send us the technical drawings. Our engineering team will confirm compatibility before production begins.

Engineering Support and OEM/ODM Services for Window Systems

Our role extends beyond manufacturing. We act as an extension of your engineering team. When you bring us a design that does not meet your local wind load requirements, we tell you before you spend money on molds. When you need a new profile section for a unique opening, we design it.

Adapting to Local Building Codes

Building codes vary significantly across markets. What passes in Dubai does not necessarily pass in Florida. Our profile structure is adjustable—we can increase wall thickness, add reinforcement, or modify the glazing bead design to meet the performance requirements of your target market. We have produced double door windows that pass Miami-Dade impact tests and units that meet European EN standards. This adaptability prevents the costly problem of importing windows that fail local inspections.

Private Label Manufacturing

Several distributors in Europe and North America sell double door windows under their own brand names. They do not own factories. They own customer relationships and marketing. We provide the manufacturing capacity, quality control, and logistics. You provide the brand. This arrangement works well for companies that want to expand their product line without investing millions in production equipment.

Prototyping and Sample Development

Before mass production, we build samples. For custom profiles, we create prototype sections using our own extrusion dies. This allows you to inspect the actual product—not a rendering—before committing to a full production run. We charge for samples, but we deduct that cost from your first bulk order.

Rigorous Quality Control: Pre-Shipment Testing for Air and Water Tightness

The cost of a defective double door window is not just the unit price. It is the labor cost of installation, the delay in project timeline, and the damage to your reputation. We prevent this through a three-step performance test on every batch before shipment.

The Three-Step Performance Test

Air tightness measures the amount of air leaking through the closed window. Poor air tightness leads to energy loss and drafts. Water tightness tests the window’s resistance to water penetration under pressure. This is critical for buildings in rainy climates or high-rise structures where wind drives rain against the facade. Wind resistance testing confirms the frame and glass can withstand specified wind pressures without permanent deformation.

For most projects, we test to the standards required by your market. For projects with extreme requirements—hurricane zones, for instance—we run additional testing protocols.

Inspection Before Shipment

We conduct these tests before the goods leave our factory. If a batch fails, we fix the issue and retest. This prevents the scenario where windows arrive at your job site and fail inspection, forcing you to pay for rework or replacement. The testing equipment is not a formality—our QC team uses calibrated instruments and documents every result.

Export Documentation and Compliance

Our foreign trade experience means you will not face surprises at customs. We provide packing lists, proforma invoices, certificates of origin, and full customs documents. For markets with specific import requirements, we prepare the paperwork in advance. We have shipped to over 30 countries, and we understand the documentation nuances of each.

Logistics Network: FCL, LCL, and On-Time Delivery from Our Factory

Large-format doors and windows are fragile cargo. A double door window unit can be 2 meters wide and weigh over 100 kilograms. Shipping them without proper packing is an invitation for damage claims.

Secure Packing for Ocean Freight

We pack double door windows in reinforced wooden crates with foam cushioning at all contact points. Glass surfaces receive protective film. Hardware is either pre-installed with protective covers or packed separately in labeled boxes. We have shipped thousands of units without transit damage. The packing method is not optional—it is part of our standard process.

Streamlined Customs and Documentation

Our export team handles the paperwork. You provide your import details, and we prepare the necessary documents. For buyers who use freight forwarders, we coordinate directly with their agents to ensure smooth handoff. If you are new to importing, we walk you through the process step by step.

Production Scheduling for Construction Timelines

We align our production schedule with your construction milestones. If your project requires windows in three phases, we plan production accordingly. This prevents the problem of windows arriving too early (storage costs, damage risk) or too late (construction delays). We build buffer time into the schedule for unexpected issues, but we are honest about timelines from the start.

Why Global Builders Choose Jusen for Double Door Window Supply

We have supplied double door windows for projects ranging from single villas to high-rise residential complexes. The reasons clients return to us are consistent: reliability, quality, and communication.

Case Study: High-Rise Residential Complex

A developer in Southeast Asia needed 2,000 thermal-break double door windows for a 30-story residential tower. The wind resistance requirement was severe due to the building height and typhoon season. We produced profiles with reinforced steel cores and specified laminated glass for the larger units. Every batch passed the wind resistance test before shipment. The project completed on schedule.

Case Study: Luxury Villa Project

A private client in Australia wanted solid wood double door windows for a beachfront villa. The challenge was moisture resistance. We recommended an aluminum-clad wood construction—wood interior for aesthetics, aluminum exterior for weather protection. The client initially resisted the higher cost but agreed after we explained the maintenance implications. The windows have performed well through multiple coastal storm seasons.

Long-Term Partnership Model

Construction is not a one-time transaction. Projects have phases, expansions, and maintenance needs. We treat every client as a long-term partner. This means we keep production records, maintain compatibility with your existing units, and offer support for future orders even years after the initial delivery.

Frequently Asked Questions

What is the MOQ for custom double door windows?

Our MOQ depends on the complexity of the profile and glass. For standard profiles with common glass sizes, we can accommodate orders as small as 50 units. For fully custom profiles requiring new extrusion dies, the MOQ is higher to justify the tooling cost. We discuss this transparently during the quote process.

Can you match specific architectural designs or local codes?

Yes. Our engineering team reviews your drawings and specifications. If the design does not meet your local wind load or energy performance requirements, we recommend modifications. We have adjusted profile wall thickness, thermal break widths, and reinforcement designs to comply with various international standards.

How do you handle warranty and after-sales issues?

Our pre-shipment inspection process minimizes defects, but issues can still arise. If a unit arrives damaged or has a manufacturing defect, we replace it. The terms of the warranty depend on the product type and the agreement we sign. We handle claims quickly because we understand that a stalled construction site costs you money every day.

What are your shipping terms?

We work with FOB, CIF, and EXW terms depending on your preference. For FCL orders, we handle export packing and documentation. For LCL orders, we coordinate with your chosen freight forwarder or recommend one we have worked with successfully.

Can we use our own branding on the windows?

Absolutely. We offer private label services. You provide the brand specifications, and we apply them to the windows, packaging, and documentation. This allows you to establish your own product line without investing in manufacturing infrastructure.

Decision Guide: Choosing the Right Double Door Window Configuration

Choose thermal-break aluminum if your project requires high energy efficiency, low maintenance, and structural strength for large openings. This is the default choice for commercial buildings and modern residential developments.

Choose solid wood if your project demands a traditional or luxury aesthetic and the building is in a moderate climate. Be prepared for higher upfront costs and ongoing maintenance.

Choose aluminum-clad wood if you want the warmth of wood interiors with the weather resistance of aluminum exteriors. This is the compromise option for coastal or high-humidity environments.

Choose our OEM/ODM services if you want to sell double door windows under your own brand without owning a factory. We handle production, quality control, and logistics.

The right choice depends on your project requirements, budget, and climate. We can help you evaluate the options based on your specific conditions.

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When you are ready to discuss your double door window requirements, send us your project drawings and specifications. We will provide a detailed quote with transparent cost breakdown and a realistic production timeline. No middlemen, no surprises—just factory-direct manufacturing.

Get a Free Quote

References

• National Fenestration Rating Council. (2023). Understanding Window Performance Ratings. Retrieved from https://www.nfrc.org/window-performance/
• American Architectural Manufacturers Association. (2022). AAMA/WDMA/CSA 101/I.S.2/A440-22 Standard Specification. Retrieved from https://aamanet.org/
• International Code Council. (2021). International Building Code – Fenestration Requirements. Retrieved from https://www.iccsafe.org/
• European Committee for Standardization. (2020). EN 14351-1:2006+A2:2016 Windows and doors – Product standard. Retrieved from https://www.cencenelec.eu/
• Glass for Europe. (2023). Glass in Buildings: Energy Efficiency and Safety. Retrieved from https://www.glassforeurope.com/