Custom Aluminium Extrusion for Windows & Doors – Bespoke Profile Manufacturing

Standard profile catalogues cannot solve every design problem. When your window or door system needs a specific sightline, a unique thermal break position, a special hardware groove, or a profile shape that simply does not exist off the shelf, Custom Aluminium Extrusion for Windows & Doors is the answer. We design and manufacture bespoke dies, extrude the profile to your exact geometry, and finish it to the same high standards as our architectural range. The result is a window or door section that fits your product perfectly — not the other way around.

Every custom extrusion project starts with your drawing. Our in-house die design team reviews the geometry for extrudability, wall thickness balance, and tolerance feasibility. Once the die is confirmed, we extrude a trial section for your approval before full production. The process is transparent, documented, and surprisingly fast — often 6–8 weeks from drawing to finished profile. Alloys are selected for the application: 6063-T5 for excellent finish quality and anodizing response, or 6061-T6 for higher structural strength in large sashes and heavy doors.

Shengxin has over 30 years of aluminium extrusion expertise and operates 35 extrusion lines in-house, including a 5,500-ton press for deep, complex sections. We also maintain a die library of over 500,000 moulds — so before designing a new die, we check whether an existing one already matches your requirements. For ready-made systems, explore our door and window profile range first; if you cannot find the right section, our custom service will build it for you.

Features & Benefits

• True bespoke die design: Your profile is manufactured from a die created specifically for your drawing. No compromises, no modifications to standard shapes — the extrusion matches your design exactly.
• Complex multi-chamber profiles: We can extrude sections with internal hollow chambers, integrated screw channels, thermal break grooves, and complex wall thickness variations that standard catalogues cannot offer.
• Alloy flexibility: Choose from 6063-T5, 6061-T6, 6005A, or 6082, depending on your strength, finishing, and fabrication requirements. Our engineers will advise on the right alloy for your application.
• Full finishing under one roof: Anodizing (3 lines), powder coating (3 lines), PVDF, and wood grain transfer are all performed in-house, so your custom profile arrives finished and ready to fabricate.
• Sample before production: Every custom die produces a trial extrusion for your approval. You check dimensions, fit, and finish before full production begins.
• Scalable from prototype to volume: Start with a few hundred kilos for testing and prototyping, then scale to multi-ton production on the same extrusion lines — no process change, no requalification.

How Custom Extrusion Works

From your drawing to the finished profile, the custom extrusion process follows a clear, documented path.

Please note: The timelines above are typical estimates based on smooth design approvals and current production scheduling. Actual lead times may be longer if design changes are required during review, if multiple sample iterations are needed, or if production capacity is temporarily at high demand. Your dedicated project engineer will provide an updated timeline at each stage, and the final delivery date will be confirmed in your order confirmation.

Technical Specifications

In addition to window and door profiles, we also manufacture anodized custom-length cabinet door aluminum profile options for interior cabinetry and furniture applications.

Who Uses Custom Extrusion for Windows & Doors?

• Window and door system manufacturers: Companies developing their own proprietary window or door systems use custom extrusions to create unique profiles that differentiate their products in the market.
• Architects with bespoke facade designs: When a project calls for a specific sightline, profile shape, or thermal performance, custom extrusion makes that architectural vision achievable.
• Fabricators with unusual requirements: Non-standard wall openings, heritage profiles, or special hardware interfaces often require a bespoke extrusion that standard catalogues cannot supply.
• OEM and private label producers: Manufacturers selling under their own brand need custom profiles that cannot be matched by competitors using standard sections.
• Developers seeking differentiation: Property developers who want a distinctive window or door aesthetic commission custom profiles to set their projects apart.

Customisation & Supply Options

Why Choose Shengxin for Custom Window & Door Extrusions?

Custom extrusion is only as good as the die design behind it. Shengxin is an aluminium extrusion specialist with over 30 years of manufacturing experience. Our in-house die shop has produced thousands of custom dies for window, door, and facade applications, and we understand the tolerance, straightness, and surface finish requirements that fenestration profiles demand. From your first sketch to the final finished profile, everything happens under our roof.

Related Systems: If you need a ready-made solution, explore our sliding window and door profiles or our curtain wall profile system. 5 container loading platforms ensure on-time dispatch.

Custom Aluminium Extrusion for Windows & Doors FAQ

Custom Window & Door Extrusion Solutions

If your window or door project requires a unique profile that standard catalogues cannot provide, Shengxin's custom extrusion service will design and manufacture it to your exact drawings, from concept to finished, coated profile.

How It Works:

1. Send your drawing — 2D PDF/DWG or 3D STEP/IGES file showing the profile geometry and performance requirements.
2. Our engineers review — we assess extrudability, tolerance feasibility, and suggest optimisations for strength and cost.
3. Receive a quotation — including die cost, unit price, and lead time.
4. Approve a sample — we extrude a trial section and send it for your approval.
5. Full production — consistent quality, delivered on schedule with full documentation.

⚠️ Important Note: All profile images and dimensional drawings on this page are for reference only. Final dimensions, alloy, finish, and tolerances will be confirmed based on your approved production drawings. Please contact our engineering team to discuss your specific requirements before placing an order.