I hate to be the bearer of bad news, but VELUX have stopped manufacturing spare parts for GGL 1 - GGL 10 windows due to their age. The only options out there are to contact a local glazier in your area to come and have a look and organise a replacement glass unit for you. Alternatively the only option would be to replace the whole window for a newer generation VELUX.
I hate to be the bearer of bad news, but VELUX have stopped manufacturing spare parts for GGL 1 - GGL 10 windows due to their age. The only options out there are to contact a local glazier in your area to come and have a look and organise a replacement glass unit for you. Alternatively the only option would be to replace the whole window for a newer generation VELUX.