Transom Closer

Transom concealed door closer, Overhead door closer / D&D Builders Hardware Co. located in Taiwan, is a professional custom hardware manufacturer with rich experience in producing the OEM/ODM door and window hardware, building hardware and automotive parts according to customers' individual needs and designs.

Transom concealed overhead door closer

Transom Closer

Transom concealed door closer, Overhead door closer

D&D transom concealed door closer is designed to be concealed inside the top transom of the door for aesthetic appearance. The overhead concealed door closer is ideal for shopfitting, for both double and single-action doors.


All of our products are 100% made in Taiwan with reliable and stable quality!

Transom Closer

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Transom concealed overhead door closer similar to Dorma RTS 85 - Transom conceal closer
Transom concealed overhead door closer similar to Dorma RTS 85
TC-S5000

The D&D TC-S5000 concealed transom door closer offers a solution for application where door...

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Transom Closer | Door Closer & Hardware Manufacturer | D&D

Based in Taiwan, D&D BUILDERS HARDWARE CO., since 2002, is a Transom Closer | door closer & hardware supplier. Main products, including door hinge, door handle, door lock and cylinder, door closer, door accessory and so forth.

TÜV Rheinland & UL certified door closer and hardware production from designing, molding, plastic injection, stamping, forging, die casting to CNC machining, has over 20 years with plentiful experiences in handling various architectural hardware. SLIDEback sliding door closer, the patented connecting design provides various applications for different sliding doors, and the connection and separation switching bar design allow having a door with or without auto-closed function.

D&D has been offering customers high-quality door closer and hardware, both with advanced technology and 15 years of experience, D&D ensures each customer's demands are met.