Hey Happi,We seem to do the disposals,dish washers.But like the dryers adding the pigtail is not usually part of our deal.We will do it if provided at the time of us being there.Boss wants everyone smilely faced at the end of a job.But under no circumstances do we install anything that has to be leveled or plumbed We`ll slide in the DW but not bolt to cabinet.The range hoods are done after instalation they hang it and put in the romex connector we leave on the wire with a big note use this connector for hood wire leave wire inside electrician will hook up.