I could understand all interlock components needing replacement due to corrosion, and even the door operator itself, but the tracks would have to be rusted or corroded pretty bad and interfering with free door roller operation to need replacement. It could be, but the video you mention isn’t here.
Ahhh I see it now. Thanks for reposting the video. Yes, those tracks (at least the one in the video) certainly shows more than just minor surface rust. Pitting is visible as well and the door hardware which shows the effects of sea air/moisture can be problematic. Call backs or shutdowns due to door troubles with marginal equipment can be costly to the owner as well as the service provider and commonly lead to trust issues and billing disagreements between the two. Big pain to replace integral tracks which you have. So yes the proposal change out cost won’t be cheap. Hall door equipment and most likely car door equipment will show the same condition. As mentioned above, if moisture resistant door equipment is available, I’d certainly consider it. In this case assuming all equipment is in the same degrading condition, I’d side with the service provider.
