Last week I had my Formica kitchen countertops replaced by Granite by a subcontractor of Home Depot Expo. Although the new countertops look great, I am concerned about the installation. Specially my concern is with the granite bar that is in back of the sink and leads to the great room. The bar was previously 15 1/2 inches wide by 90 inches in length. The 15
1/2 width sat on one side of a wall that was 4 3/4 inch wide. When the measuring person came to my home, I asked him if I could extend the width to 17 1/2 inches, and he said that would be no problem.After the installer took off the old counter and replaced it with the granite one, he indicated to me that I would need more support due to all the additional weight of the granite counter bar. He temporarily put 2 wooden sticks on each side of the bar and advised me to get and install 3 corbels or shelf brackets under the width. Home Depot or Lowes do not carry "heavy" corbels or shelf brackets. I noticed Home Depot has a shelf bracket that can carry 50 lbs of weight.
Should the granite installer be responsible to the "complete installation", including the safe supporting of the granite bar? They tell me it is my responsibility to add this additional support. What type of a craftsman should be used to make the installation safe?
Any comments / suggestions would be appreciated.