Both the 47-51 Service Manual and 55 2nd Manual I have call for sealant around the pinch weld AND around the glass after roping in place. If your guy didn't use sealant, then he didn't finish the job. You may be able to reuse the seal, but not sure about that.

Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.