aaaaaaaaaa, our chinese contractors 拆地角线 and 装地角线 again for us. he said not many people would like to do so since it is quite troublesome. this is true aaaaaaaaa. they assigned a specific guy to 拆地角线 and 装地角线 and cooking :P and they are quite cheap, only $1.8/sq ft for everything, including handling old carpet for us.