Commercial aluminum window systems for offices, hotels, schools, healthcare, retail and mixed-use projects. Configure thermal break frames, glazing, opening types, finishes and hardware with DER Building.

Configure custom aluminum windows and doors by size, opening type, thermal break, glass, finish and hardware. Project support from drawings to export packing.

DER Building is an aluminum doors manufacturer in China supplying custom sliding, hinged, folding and bi-fold door systems for residential and commercial projects. Configure profiles, glass, finishes, hardware, inspection and export packing." name="description

DER Building manufactures custom aluminum sliding, hinged and bi-fold door systems for residential, commercial and project buyers. Configure profiles, glass, finish, hardware and export packing for your door schedule.

Wind load resistance is one of the most critical performance indicators for aluminum windows, directly affecting building safety, occupant security, and long-term durability.

UPVC and aluminum alloy are the two most mainstream materials for modern windows and doors, widely used in residential buildings, commercial projects, villas and renovation projects.

As a professional manufacturer of aluminum alloy doors and windows, we always take product quality as the core.

Laminated glass is a kind of safety glass made by bonding two or more glass layers with one or more interlayer films under high temperature and pressure.