We don't publish a flat number for opener installs here because the header work described above changes the job on a fair number of houses, and we're not going to quote blind over the phone and then surprise you with a reinforcing plate charge once we're up on the ladder.
What we can tell you is what drives the cost: whether the existing header needs reinforcement, whether you're keeping your old rail and just swapping the motor unit, and whether you want battery backup or a smart wall console added. Homes built around the 1961 median we see across North Bergen more often need that header check than newer construction does, so budget for the possibility even if it doesn't end up needed.
We'll look at the header, the wiring, and the existing track before we give you a number - not after we've started drilling.