The Premier T70 system is guaranteed against all defects in materials or manufacture applied exclusively to the system as follows:
- A 10-year guarantee on white window profile for shape and dimension, and resistance to weathering and light
- A 5-year guarantee on foiled window profile for shape and dimension, and resistance to weathering and light
- A 10-year guarantee on all window system hardware components for functioning and reliability
- A 10-year guarantee on all door system hardware components for functioning and reliability
- A 10-year guarantee on all patio system hardware components for functioning and reliability
- A 10-year guarantee on fasteners used throughout the system. Samples of the screws have completed a 500 hours, accelerated corrosion resistance salt spray test
