Windshields

When the body and paint was getting done on our Dart I got new glass. EZ, who has passed away had the glass installed. Both leaked a small amount of water when it got washed. The guy that put them on tried 3 times, couldn't get them to not leak. Second place tried twice...still drips. Window frames are spotless, new gaskets were used. Hoping to find a local shop to stop the drips. Wondering...is any sort of adhesive used along with the gaskets?