[1retired06]

Have never had to replace a seal except for a total window replacement. I look at what part of the seal is visible .and if no cracks or deterioration, all is good. If I see something that bothers me, I clean and touch up with black windshield sealer. I do pay careful attention to the top of the window/seal and have run a clear line of silicon sealer across the top on occasion. Never good to caulk on old caulk.