We don't have a published price list for Manchester specifically, and we're not going to guess at one. What we can say is that jobs here skew toward repair rather than full replacement, simply because a 1987 door with original hardware is usually still structurally sound - it's the springs, cables, and rollers wearing out, not the panels. A repair on that kind of door is a smaller job than swapping the whole unit, and it's worth asking for a diagnosis before assuming you need a new door.
Manchester's median household income, at $108,242, runs a bit above the wider area's $102,693. That doesn't set prices, but it does mean homeowners here more often opt for the better-grade replacement parts - heavier springs rated for more cycles, better rollers - rather than the cheapest fix available. That's a homeowner choice, not something we push.