We recently purchased a new family home in Toronto that was a little behind in upkeep. I had a pest company come through a month ago, and after waiting a month for the mice to die, scheduled for the ducts to be cleaned.
The Duct Cleaning Specialists cleaned my house's duct system for the first time in over 10 years. I could see from both the photos the technicians provided (and with my own eyes) that the mouse droppings and construction dust had been removed in full.
The technicians Nick and Jon also gave me some advice on changing the filter, where central air would plug-in, current fire code, and how well my furnace is working. I'm very happy with the service provided.