Unfortunately, I have three members involved with the problem - The local home center , Stanley, and the installer.
Assuming you didn't buy any of the parts, then the other parties involved need to solve the problem. Assuming that, it's NOT your fault and NOT your liability.
Bottom line - I wouldn't have anything installed that would VOID any Warranty. What I would ALSO do is start taking pictures AND start writing things down. Dates, names, 'talked via phone or in person', location of said 'talk', and 'personal thoughts'. This way, if you end up in court, the Judge won't have to rely on he said, she said. You'll have pictures and a journal w/you. Believe me, that's how the Judge will look at it.
Start now, and backtrack a little if necessary w/your notes. If you need more guidance, post back. My best to ya and hope this helps.
Jay J -Moderator
PS: God Bless America!