Aluminium windows and doors can deliver meaningful savings from China, but they should not be purchased like simple catalogue items. The risk is in drawings, profile selection, glass specification, hardware, finish colour and site tolerance.
A good procurement process starts with project drawings and ends with labelled frames that the installation team can identify quickly.
Drawings and opening schedule
Before a factory quote, prepare an opening schedule with width, height, quantity, opening direction, fixed or operable panels and any special requirements. The factory should return shop drawings for review before production.
For renovation projects, measured site dimensions must be treated carefully because wall openings may not match original drawings.
Profiles, glass and hardware
The visible frame is only one part of the package. Buyers should confirm profile series, wall thickness, powder coating or anodizing, glass make-up, spacer, sealant, handle, lock, roller, hinge and drainage design.
- Confirm glass thickness, laminate or insulated glass requirements.
- Request finish samples for powder coating or anodized colours.
- Define hardware grade based on project use, not only price.
Performance and destination requirements
Different markets have different expectations for wind load, water penetration, energy performance and safety glazing. The buyer should state the destination requirements early so the supplier can confirm whether existing reports are relevant or whether additional testing is needed.
Packing and site labels
Windows and doors are vulnerable to scratches, glass breakage and frame deformation. Packing should protect corners, glass faces and hardware. Each unit should be labelled by opening code, floor, room or elevation so installation does not become a sorting exercise.
Next step
Send your opening schedule, drawings and target market requirements. My Building List can help compare factories, request shop drawings and coordinate samples before production starts.
