I had a break-in at my storage facility about a year ago during which one of my travel trailer windows was broken (intentionally).
I called my insurance company, and window replacement was covered. The interesting part was that the insurance company subbed it out to an RV company who subbed it out to a vehicle window replacement company who subbed it out to a "Mom and Pop" operation that worked out of an old van with duct tape lettering on the side. They went to work on the replacement window; broke the piece of glass they brought with them, went to Lowe's and picked up another piece of glass, cut that to fit the window frame and installed it. All in all, it worked; just not what I expected when I paid my monthly insurance bill!
To the point; have you considered filing an insurance claim? And letting the "pros" fix it?
Puma 26-RLSS travel trailer
Dodge 1500 5.7 Hemi Regular cab
15,000 miles towing, 28 weeks camping, 2010 to present