A passion for creating new products and customer satisfaction have been driving our dynamic growth for 40 years.
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For years, we have been creating products that meet
the highest global quality standards.
USA / Canada / United Kingdom / Poland
Our products meet stringent quality and safety standards, confirmed by certificates from recognized institutions worldwide.
Check which of them confirm the reliability of our windows, doors, and shading systems.
Energy-efficient joinery
Better air quality
Lower heating bills
More natural lightDRUTEX Quality Certificates
NFRC
National Fenestration Rating Council
Opis certyfikatu:
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.
Typy badań:
IMPACT
Keystone Certification Inc.
Opis certyfikatu:
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.
Typy badań:
PHIUS
Passive House Institute US
Opis certyfikatu:
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.
Typy badań:
PPOŻ
Performance Consistency
Opis certyfikatu:
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.
Typy badań:
NDVK
Norwegian Door-And Window Control
Opis certyfikatu:
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.