The Canadian installation company, Ducana Windows, has gone bankrupt and we are having trouble finding anyone who deals with the parts to repair the windows. I manage an office building with over 100 of these windows and am in desperate need of parts so we can get some of these windows operating. Owner can't afford to be replacing that many windows for the sake of a few parts.
I believe from your website that it is a Series 350 channel. From my measurements and comparisons with your site, they have a 19-002 balance top and a 15-004 balance shoe. The Top sash guide is a 18-073
The windows vary in height and width and the channels are varying sizes including 24" 27" and 29".
The numbers stamped on the channels are all different and are not the same as you supply.
23 9
2690 7 29
2840 7
How do I tell the weights so I can order the correct sash weight?
Also, do you ship to Canada
