We don't publish a flat number here because the honest range depends on motor size, belt versus chain, and whether your existing bracket and rail can be reused or need replacing outright - a wide double door often needs the heavier-duty bracket even if the old opener looks similar on the box. What we can tell you is the shape of the decision: this area's household incomes run well above the wider service area's median, and a fair number of Brambleton calls end up choosing the higher-torque, battery-backup unit rather than the base model, since that's the tier most in demand for this kind of build.
We'll quote the job on-site once we've seen the door, the ceiling height, and what's already mounted. If the spring or track needs work first, that gets priced separately so you're not guessing which part of the bill is opener and which is the door itself.