Furthermore, Internorm issues a commitment that products can be repeatedly serviced by our experts (original parts not obligatory), so as to retain their full function for a period of 30 years.
However, this presupposes that the frame construction (frame and sash) is not damaged. The 30-year period starts from the production date. The services required to maintain the functionality, including the necessary materials, labor etc., will be invoiced according to the currently valid rates.