[cody]

Differential fluid condition is always worth checking first before assuming anything internal needs replacing because low or degraded fluid causes exactly the whining pattern you’re describing and sometimes a fluid change resolves it completely at a fraction of the cost of any mechanical work. A shop that checks fluid condition before recommending further diagnosis is approaching it correctly rather than jumping straight to rebuild conversations.

[cody]

I always assumed stronger security meant replacing the whole window, so this was interesting to read. Adding a film sounds like a good option if the windows are still in good condition and you just want a bit more protection. On the other hand, if the frames are worn out or the windows are already letting in drafts, I’d probably look into window installation Brooklyn NY instead, since fixing the whole unit could be the better long-term solution.