Ann Arbor differs from the rest of southeast Michigan in one way that matters a great deal for this trade: the cars are newer.
Calibration is the norm here
A university city with a large professional and medical workforce runs a younger, more heavily leased vehicle population than Detroit or Warren. Practically, that means a much higher share of windshields here have a forward-facing camera behind them driving lane keeping, adaptive cruise and automatic emergency braking.
Recalibration is therefore closer to standard than to optional on Ann Arbor jobs, and it should appear as a line on your quote. A quote that is dramatically cheaper than the others on a late-model car is worth interrogating on exactly this point — the most common way to be cheaper is to leave the calibration out. What it involves, and why static and dynamic differ.
The city is also unusually well set up for doing it properly. Downtown and medical campus parking structures give covered, level, evenly lit space — which is what static calibration actually requires and what a sloping driveway cannot provide.
Two different chip populations
Ann Arbor drivers pick up damage in two distinct ways, and they need different responses.
Freeway damage on M-14, US-23 and I-94 is the familiar kind: high speed, a single hard strike, often a star break or a bullseye.
Township gravel is the local specialty. Washtenaw County carries a large network of unpaved and seasonally graded roads, and drivers out toward Dexter, Chelsea, Manchester and the surrounding townships take frequent low-speed strikes instead. That produces several small chips rather than one dramatic one, accumulating over a season and easy to ignore.
Multiple chips repair well in one visit, and the cost per chip normally falls after the first. The point at which it stops being worth repairing is accumulated distortion in the driver’s field of view — a judgement you should be given straight rather than sold in either direction.
Lease returns
Worth its own note because the arithmetic is clear and people get it wrong. Lease-end glass assessments generally cost more than dealing with the damage beforehand, and a properly repaired chip is normally accepted where a crack in the driver’s sweep is not. If your lease ends within a few months and there is damage in the glass, handling it now is almost always the cheaper path.
Also covered from here
Ypsilanti, Ypsilanti Township, Saline, Dexter, Chelsea, Manchester, Milan, Whitmore Lake, Pittsfield, Scio and the surrounding Washtenaw townships.
Common questions
My lease is ending and there is a chip in the windshield.
Deal with it before the inspection, and get a repair assessed rather than assuming replacement. Lease-end glass charges are usually more than the cost of fixing it beforehand, and a repairable chip repaired is normally accepted. A crack in the driver's view will not be.
Does my car need calibration?
Around here, probably. If it has lane keeping, adaptive cruise or automatic braking, the camera behind the glass has to be recalibrated once the glass moves. Ann Arbor's vehicle mix skews newer than the rest of the metro, so this is closer to standard than optional in this city.
I live out on a gravel road in the townships.
Then you are getting a different kind of damage from the freeway drivers — lower speed, more frequent, often several small chips rather than one big star. Multiple chips are usually repairable in a single visit and the per-chip cost drops after the first.