After weeks of delays in getting the installation, we discovered they incorrrectly translated their own estimate notes and ordered from the manufacture the wrong windows. This was discovered when I noted them trying to install a clear glass insert in a bathroom window that needed frosted glass. I stopped the work and spoke to management. We came to agreement they could finish the install for the one window they started and they would order the right windows and replace the incorrect one once the new one came in. At some point they changed their mind arguing they did what the contract said dismising their error by stating we should have made the corrections to the contract ourselves. Months of back and forth, and some rather questionable conduct on their part, they have refused to return the replaced window, which had frosted glass; refused to refund money for the other window not installed; and we are left with a clear glass window in a bathroom that faces the street. They have stopped returning my calls.