The high quality of our products has been confirmed by the Russia Gosstroy licenses (RF State Construction Committee), certificates, test protocols, and membership in the prestigious Club of Bona Fide Manufacturers of Plastic Windows. Proplex profile which SIMPLEX uses for PVC-windows, was prized with "Russian mark" - the Gold Quality Mark awarding to the best goods in Russia.

Our Quality Control Department is responsible for providing control and assurance of quality within the company. The objective is to make certain that all products furnished to the customer conform to the quality standards specified by the customer and by the company.

SIMPLEX inspectors keep a check on meeting the requirements of Government regulatory documents, as well as commercial standards currently prevalent in manufacturing.