Precision-engineered aluminum. European hardware (SIEGENIA, HOPPE, Roto). US, MENA, and APAC projects delivered on time — from single-home retrofits to 500-unit residential blocks.
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Each case study links to a full technical write-up: challenge, solution, spec sheet, hardware selection, and architect recommendation.



Products: 68mm Thermal-Break Bifold Door + 105 Casement Windows



Products: 158 Panoramic Minimalist Sliding + 120 Lift-and-Slide Doors



Products: 120 Thermal-Break Casement + 110 Double In-Swing



Products: 158 Panoramic Minimalist Sliding + 120 Aluminum Sunroom



Products: J75 Thermal-Break Pivot Door + 105 Double In-Swing Casement



Products: 80mm Thermal-Break Bifold Door — 14 panels, bronze anodized
German engineering meets Chinese manufacturing precision. Every TWD window ships with genuine European hardware components tested for millions of open-close cycles.
Transparent 6-step process — you always know what happens next.
Message us via form or WhatsApp with drawings, dimensions, or a photo of the opening. NDA available.
Engineering team responds with pricing, product options, shop drawings, and lead time.
Optional physical sample sent to your site. Approve color, finish, hardware. 50% deposit to start production.
Manufactured in our 30,000 m² factory. Every unit QC-tested before crating. Photos sent at each stage.
Container consolidation to your port. 30-60 day sea freight to US west coast, 45-75 days east coast.
Detailed installation guides, remote video support, and 10-year frame warranty. Installer referrals available.
Get a detailed quote with drawings, specs, and lead times within 24 hours. No obligation, NDA available.