Air Duct Cleaning/Old Micey House - Worth the cost?
My house was built in 1899 and has suffered a mice infestation in the past that I've been cleaning up as I renovate. The house can sometimes smell really musty and micey but has been so much better than it was when I bought it, although the (unfinished) basement always smells really bad and I'm still working on cleaning that up. However, this winter I had to replace my furnace and in doing so upgraded to a central cooling heat pump. But now that cool air is coming through, the smells are again permeating throughout the house worse than it ever used to. I had the company who installed it come out to make sure it wasn't pulling up any air directly from the basement and they said it was all fine and recommended getting my air ducts cleaned. Everything I've read about it says that it is a waste of money. I've also gone down there in the basement and looked through some of the ducts that I could manage loose and it looks like standard dust but no mice nests yet. I'm wondering if the stronger system mixed with cold air is forcing more through the old returns that definitely look pretty gross when I've looked into them from the main floor. I'm wanting anyones advice or experiences with something similar. Is it worth it and is it realistic to hope that I can manage a company to clean them for 500 or less?