Housekeeper

My mom is looking to sell her house in the next couple of years and it needs a deep clean first. I'm looking to see what kind of options are out there for her. Currently, the house has not had a good, thorough cleaning in a long time. Mom is getting older and was never very good at cleaning anyway. It needs everything; windows, doors, floors, carpets, cabinets, lights, anything that can be cleaned probably needs cleaning.