Central air conditioner was in the backyard right beside our outdoor dining table. My house and a/c are 3 years old, but this unit was fairly loud on startup. I have a fully finished basement with suspended ceiling. Job was done same day, everything left clean after ... you can't even tell the team was there, except now the a/c is on the side not the back so you can't hear it come on at all. Peter provided firm quote from photos, didn't even need to come to the house.