I answer you what you asked was how you call your friend's parents. The answer is it depends on your age. Young ages, like you, can call them "おじさん" or "おばさん" . There are no diffinite border line, but ages over thirty, we call friend's parents "お父さん" or "お母さん". But I think, you are living in Canada, and you'd like to talk with your neighbors or real friend's parents around you, you can follow your Canadian way. If you usually call them their first name, you can do it. Put -さん after their first name, sounds better. In addition, in Japan, we never call friend's parents first name when we are teenagers. If you do that, everybody say "What?" hahaha. Sorry, I'm not good at English, but I hope this can help you.

good question, I usually don't call their name or anything. I just try to avoid mentioning it since I also don't know what to call them. For me, even おじさん、おばさん are a little rude. I used to call my friend's mother "○○ちゃんのお母さん"　（笑）

It's amazing that you know how to type "lol" in Japanese, lol.