I know Smith's warranty changed a bit when they got bought out by ITW. I doubt they'll replace the crushed one, but they're normally pretty good about repairing seals and bad braze joints and whatnot.
I have my LWS handle torch repairs. I don't know who they send it to, but I had them rebuild a Smith heavy duty torch that had been through a structural fire and it works like new. I did pay a fee for that since it clearly wasn't Smith's fault the building burned down around the torch set.