Overview of GU system thresholds
With our CE-certified, thermally broken GU system thresholds, you can install your doors and French doors with exceptional energy efficiency and comfort. The thermal break reliably prevents the formation of condensation indoors, ensuring a pleasant indoor climate.
With the flush GU system threshold, we also offer you a barrier-free solution for your house, side entrance, or French doors – perfect for anyone who values an age-appropriate and comfortable living environment.
For PVC systems, we offer pre-assembled solutions, and in the timber or timber-aluminium sector, we have expanded our range to include pre-commissioned variants.
Product of the Year 2024 – bfb barrier-free construction
Over 25 years of pioneering threshold solutions from Gretsch-Unitas
For over a quarter of a century, Gretsch-Unitas has stood for continuous development in the field of thresholds. Thanks to this long-standing innovative strength, a comprehensive range of system-specific solutions has been created, optimally serving all common timber and PVC systems.
General questions about GU door thresholds
Our GU door thresholds offer innovative features for all standard and project solutions. Here you will find answers to the most important questions.
