Has anyone had an issue with sliding doors to contend with?   We have 3, and there are problems with each of them. They were installed last summer and they weren’t right from the day they were installed.    We have gone back to our builders time and time again and they’ve insisted it’s a manufacturing problem. The manufacturers have insisted it’s an installation issue. We’ve had an assessor out and he said the same - installation issue.    Today we heard back from the tec