You're paying the price they ask for the work to be done so why would you want to tip?
Ask for discount instead, tell them if they do a good job you'll recommend them on 718 forum
I agree with the above statement. I paid $3000 for PPF, window tints and 5 layer Ceramic Pro. I feel like today everywhere I go people expect a tip for things that years ago I didn’t tip for. Maybe it’s just me.
That's a "loaded" social question. Probably too deep for this forum. Depends on country (e.g., available social benefits) and wages. I tend to tip heavily, even in country's where tipping is not expected. Although I refrain when "tips appreciated" jars are placed in self-serve venues - that's just begging imo.