Before delivery, every finished aluminum window undergoes on-site commissioning at the Hihaus factory. Our quality control team assembles and operates the complete window system to verify frame alignment, sash movement, opening and closing smoothness, hardware performance, locking function, glass positioning, sealing, and drainage. We carefully check each component under actual operating conditions and make necessary adjustments before packing. This final commissioning process helps ensure that every aluminum window is properly fitted, fully functional, and ready for reliable installation and long-term performance at the project site.

Certified Performance with Public Verification
We do not rely on internal claims. Certified window and door systems are publicly verifiable.

AAMA Certification Program
Certified under the AAMA Certification Program, with publicly searchable certification numbers validating structural and performance compliance.

NFRC & Energy Star
NFRC certified and Energy Star listed whole window systems, with thermal performance data available in official databases.

CSA Compliance
CSA compliant systems meeting Canadian safety and performance standards.

North American Market Focus
Our aluminum window and door systems are engineered and certified specifically for the United States and Canada, supporting commercial and multi-family construction projects with clear regulatory alignment.