For those who have installed blum, any idea if its better to let blum appointed contractor to do up ur kitchen or just get ur id's carpenter to install the blum hinge n drawers? Heard from people saying if its not an appointed contractor who installs the blum systems den the warrenty will be voided. I don't think it's this way right? As long as we purchase blum from the appointed resellers, the warrenty will still be covered even if its not an appointed contracter right?