Rotors can be bought on line for $65 each x 2 = $130. Front brake pads,
$40, grease seals about $40, $210 for parts so far. Add labor at say,
$100/hr shop rate. If they renewed the brake fluid add another $50.
The deck is always stacked against the car owner for shops use a "flat
rate" book that THEY buy. So there's this BOOK that becomes THE "truth"
beyond our challenge as owners. Its labor schedules are generous in my
opinion and are NOT the upper limit; a problem beyond the standard job -
like a broken bolt etc. - is added as additional work.
Should this job require about 4 hours labor?
More like 2 hours for a professional using professional tools and shop
facilities, IMHO. It would take me, as an inexperienced owner, working
on my garage floor 4 to 6 hours, not to just change pads, but to change
the rotors, repack the wheel bearings with grease and install grease
Always, always ask for an estimate before authorizing repair work for
the estimate puts a cap on the bill.
Suggest you say nothing about their bill; just take it back to have the
warped rotor(s) replaced at no charge.
Say YOU don't want to waste YOUR time with redos, after all, you paid a
lot for the job and expect it to be OK.