We don't publish flat prices here because the two biggest cost drivers - spring size and opener age - vary house to house even within a neighborhood built in the same few years. What we can say is that Germantown's higher median income ($144,799 against the service area's $88,081) tends to shift the conversation: more homeowners here ask about full opener replacement with a newer drive system rather than a like-for-like repair, and more ask about insulated panel doors rather than patching an original steel one from the early 80s.
The honest limitation: if your opener is a 1983 original and the circuit board is dead, we may not be able to get an exact replacement part. At that point repair isn't cheaper than replacement once you add up the labor to hunt down discontinued hardware - we'll say so rather than string the job out.