Long time visitor to this site and I made an account just for your topic calabaza. I recently moved back to the Sainte Therese area after 10 years in the US(Florida). I spent days looking for great deals so the best for me were:
1) Cable TV: Videotron I chose basic channels with 20 additional custom channels total with tax around $C53.
TV Packages | Videotron
2) Cell Phone: I chose Public Mobile for the long distance since 70% of my family(including my parents) lives in the US total with tax around $C43.
Public Mobile Price Plans: Unlimited feature phone plans starting at $19 and Unlimited Android Smartphone Plans starting at $35.
3)Internet: I chose Electronic Box because I'm so used to having lots of monthly capacity. I'm with their cable portion 60Mbps/3Mbs 250gig service total with tax around $C61. You can choose lower speeds or go with their dsl service instead.
Fournisseur d'Acces Internet Haute Vitesse Independant Connexion Internet Quebec et Ontario | ElectronicBox
I didn't put what type of home phone service because I had no use for it since I have a cell phone and my little sister who's going to university this fall also have a cell phone with same company. Good luck on your search and welcome to Laval mate.