The PAS 24 certificate confirms the resistance of windows and doors to burglary, in accordance with UK security standards. Required by many investors and insurers for residential projects in the UK.

These certificates confirm that our company operates according to international standards / norms, namely: ISO 9001, which concerns the quality of work and products, and ISO 14001, which concerns environmental impact. ISO 9001 is a quality management system, covering, for example, the supervision of operational processes, monitoring of quality indicators, management of nonconformities, and corrective actions – above all, it is about consistency in quality and process control. ISO 14001 refers primarily to environmental aspects and the assessment of their impact, waste management, emissions, resources, and compliance with legal requirements and various regulations (in short, reducing negative impact on the environment). By holding both certificates, we confirm effective quality management and a responsible approach to the environment.

ift Rosenheim (Institut für Fenstertechnik e.V.) is a leading German research, certification and standardization institute, recognized worldwide and specializing in building opening technology. For over 50 years, it has been a key point of reference for manufacturers of windows, doors, façades and glazing in terms of quality and safety. For consumers, the ift logo on a product is a guarantee that the product has undergone rigorous laboratory tests carried out by independent experts and engineers.

Certificate for outward-opening aluminum fire and smoke doors. Confirms compliance with European fire safety regulations and declared performance parameters. Required for commercial, institutional, and public utility projects.

The NDVK (Norwegian Door-And Window Control) certification is a Norwegian standard for doors and windows, confirming that products meet the high-quality requirements of the Norwegian market. The certificate covers key parameters such as energy efficiency, water tightness, wind resistance, and air permeability. Having the NDVK certificate is important for manufacturers who want to sell their products in Norway, as it serves as proof of compliance with local standards.

The NFRC program is a market-recognized testing, certification, and labeling system that evaluates windows and doors in terms of their energy efficiency. During testing, key parameters such as thermal transmittance, light and solar transmittance, and resistance to condensation are assessed.

Thanks to high manufacturing quality and excellent test results, additionally including air infiltration performance, DRUTEX products may be labeled with the Energy Star mark, guaranteeing energy savings and user comfort.

Hurricane impact and structural test (IMPACT – hurricane and structural tests) according to TAS 201/202/203 and ASTM E1886/E1996 standards.

The strength tests reproduce extreme hurricane conditions, checking how windows and doors respond to powerful natural forces. Products are subjected to a series of impact tests simulating debris projectiles, followed by pressure tests that mimic sudden wind changes. This ensures that even in the strongest storms, the construction remains tight and safe, effectively protecting the interior from wind and water.

PHIUS certification confirms that windows comply with passive house requirements – in terms of glass, profiles, and spacer bars. Significant for investments in energy-efficient homes in the North American market.