Please note that if the complaint is not due to error / defect caused by us, we may have to invoice for the service and repair. If in doubt, we recommend that you check the following:

Please note that if you purchased your windows through Trenor, you must use a different form: Trenor form

A general receipt check of the goods must be performed.

Inspection must take place at a distance of at least 3 meters in normal daylight. Impurities, stains and other defects that are not clearly visible in normal daylight from this distance do not provide a basis for complaints and compensation. Impurities, stains and other defects that are visible only in a certain season, in a certain light or at a certain time of the day, will not be accepted as a complaint.
In the event of transport damage, we must have pictures showing damage and a picture of the entire product as well as a signed consignment note / packing slip attached.
Damage that may have occurred during transport from the a builder merchant’s warehouse to the end customer cannot be held responsible to Natre. It must be documented that the damage was to the product upon receipt at the building merchant.