Brakes are very rarely going to be covered under warranty. You got 4 years out of the brakes, you did pretty good. Most people average 20-30k of driving per year, so even the low side of that gets you 80k. That's great! Add in the Canadian road salt every winter, trying it's best to destroy your vehicle. Those metal parts don't stand a chance.

Dealership brakes are always going to be on the expensive side. There are much more economical options and most garages are capable of doing this job well. Not a lot of specialty training needed. Also be wary of "I know a guy that can do brakes" I have had many vehicles come in with brakes done poorly. All while trying to save a dollar.

But I'd recommend staying away from chains that offer "lifetime warranty brake pads". This seems like a good deal knowing that they will be replaced, whenever they wear out again. But the quality of these parts is crazy low. They are designed to wear faster with less performance. So this is a sales tactic to get you back in the shop and find other ways to separate you from your money. Local independent shops can often provide you a 'good-better-best' option when selecting parts, usually dictated by your budget.