Any of these companies use a network of local glass shops to install new windsheilds. Your experience will vary with the experience and reliability of the local installer. In our case, Nationwide sent a mobile crew out to us. The windsheild leaked, but we were moving around a lot so it was difficult to schedule the warranty. They came out again, but were not successful at stopping the leak. We finally took it to their shop and camped out there for several days in their parking lot so that they could pull the windsheild, reset it, and then let the glue cure. We gave it a good water test before leaving and it has been fine ever since.
If this ever happens again, I will insist on taking the coach to an experienced RV glass shop and staying there until I know it has been done right. I will negotiate that directly with Progressive and make sure they approve the shop.
TeamFoxy ~ Traveling North America
2011 Coachmen Mirada 32DS
2017 Chevy Equinox in tow.