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Always checked.

Finstral is Europe’s most certified window manufacturer.

No other window manufacturer in Europe has as many certifications as Finstral. Why? Because we want to make sure that our quality standards are not only high, but also constant. That is why we check ourselves and have ourselves checked. Regularly.
Certification of our products.
Our numerous product certifications guarantee a high degree of suitability for use, consistent and independently monitored quality and a long service life.
RAL quality mark for PVC window profile systems
RAL quality mark for PVC window profile systems
The RAL quality assurance mark for PVC window profile systems defines and guarantees product quality and its verifiable quality control.
NF quality mark for PVC profiles
NF quality mark for PVC profiles
The NF quality mark for PVC window profile systems defines and guarantees product quality and its verifiable quality control.
VinylPlus® Product Label for PVC quality
VinylPlus® Product Label for PVC quality
The VinylPlus® Product Label “Vinyl Verified” confirms the outstanding performances in terms of sustainable development for enterprises in the PVC construction industry.
Health-related evaluation of VOC emissions from construction products
Health-related evaluation of VOC emissions from construction products
The construction product meets the required conditions and is suitable for use in building interiors from a health point of view.
RAL quality mark for composite insulation glass
RAL quality mark for composite insulation glass
The RAL quality assurance mark for composite insulation glass defines and guarantees product quality and its verifiable quality control.
CEKAL quality certification for insulation glass
CEKAL quality certification for insulation glass
The CEKAL certification for insulation glass defines and guarantees product quality and its verifiable quality control.
RAL quality mark for windows and entry doors
RAL quality mark for windows and entry doors
The RAL quality assurance mark for windows and entry doors defines and guarantees product quality and its verifiable quality control.
ift-quality certified windows FIN-72, FIN-90 and FIN-Project
ift-quality certified windows FIN-72, FIN-90 and FIN-Project
The ift-quality assurance mark certifies the suitability for use and long-lasting functionality of our profile systems, including all components (glass, fittings, seals, etc.) in above-average stress situations. It is regularly checked and renewed.
Certification of our installation.
Only expert installation can ensure optimum sealing, outstanding heat insulation and lasting user comfort. We therefore have our structural joints and the quality of execution independently tested and certified by the Institut für Fenstertechnik (ift) Rosenheim.
Drawing checked
Drawing checked
Structural joint drawings bearing this mark have been checked and approved by the Institut für Fenstertechnik (ift) Rosenheim.
Certified installation expert
Certified installation expert
Installation partners with this seal have been trained in installation techniques by Finstral and the Institut für Fenstertechnik (ift) Rosenheim. The quality of execution of these bodies is independently audited each year.
Certification of our processes.
Our management quality is also one of the most certified in the industry. We have ourselves continuously checked so as to offer long-term high quality standards.
Quality management system DIN EN ISO 9001
Quality management system DIN EN ISO 9001
The various divisions of Finstral’s work organisation in the company are checked for their quality capability by the Institut für Fenstertechnik (ift) Rosenheim to ensure compliance with the certified quality management system according to DIN EN ISO 9001.
Environmental management system DIN EN ISO 14001
Environmental management system DIN EN ISO 14001
Continuous and preventive improvement of environmentally oriented services in the enterprise are checked by the SKZ plastics institute to ensure compliance with the certified environmental management system according to DIN EN ISO 14001.
Energy management system DIN EN ISO 50001
Energy management system DIN EN ISO 50001
The continuous optimisation of energy consumption in all works and administrative buildings is checked by the SKZ plastics institute to ensure compliance with the certified energy management system according to DIN EN ISO 50001.
Occupational health and safety system BS OHSAS 18001
Occupational health and safety system BS OHSAS 18001
The continuous and preventive improvement of occupational health and safety throughout the enterprise is checked by the SKZ plastics institute to ensure compliance with the occupational health and safety system according to BS OHSAS 18001.