City driving knocks alignment out in small increments
The things that move a vehicle's geometry in a metro area are not dramatic. A curb taken slightly too tight in a parking structure. A steel plate over a trench. An expansion joint. A pothole that opened after a wet winter.
None of those feels like damage. Each one moves the angles a fraction, and the total arrives months later as a tire worn away on one edge while the rest of the tread looks barely used.
Service vans and delivery vehicles get a concentrated dose, because they are doing the turning, the curbing and the parking all day rather than once on a commute.
Why the tires notice before the driver does
Drivers adapt. A vehicle that pulls slightly to the right gets a slightly offset grip on the wheel within a week, and nobody reports anything because nothing feels wrong any more.
The tires do not adapt. They just wear, on one edge, until a set that should have gone a long way comes off early. Compare the life of the last set against the one before it; that comparison is free and it is the most reliable signal there is.
A commercial store that aligns light vehicles
Renton is a commercial location, and car and light truck alignment is on its list of nine services because the vans and pickups attached to a working fleet need it as much as the trucks do.
What is not here is general vehicle repair. Brakes, oil changes, air conditioning, engine work and suspension are at Monroe, the Washington store with the full list.
When to book it
The national alignment page lists the usual occasions, and most of them assume an impact somebody remembers. City work rarely provides one, which is why the trigger here is the tires rather than an event: compare each set against the one before it, and book when the mileage drops.
A vibration rather than a pull is usually balance, also offered here. An alignment that will not hold points at worn suspension, which is work for the Monroe store.
About this store
The Renton store carries all nine Purcell tire categories, is managed by Chris Contrades, and also aligns heavy trucks and trailers.
See the national car and light truck alignment page for all 40 locations.