I just wanted to state that I have the same reception results as most of the other people in Laval. I am near the 440 and Curé Labelle.
Is your indoor antenna UHF/VHF? Would be fun to test your antenna in the Attic (Has high has you can) and compare with the result you had at the second floor.(If you have time...).
My guess is that you will see a big improvement.