At my company service does some installs as fill in work. I am in service and mainly prefer service but wonder why I can do install and service, but our install teams cannot do our job on it's most basic level, not even a clean and tune on a single stage gas furnace. We are always going behind the install crew and checking their gas pressures, configuring stats user interfaces, low voltage wiring etc. Is this normal all over the us and Canada? I would think that an installer is not just an appliance delivery man who brings the furnace down the stairs and hooks up ductwork and says goodbye because they don't know how to make the furnace run.