Is a $29k spread on three Seattle home renovation budget bids actually normal?

Three quotes came in for a bathroom remodel in Seattle and the range was $42k to $71k for essentially the same scope.

A $29,000 spread on the same project raises the question of whether something is being missed, or whether one contractor is under-bidding to get the job and planning to recover on change orders.

This is a first project at this scale and there is no good anchor for what the Seattle market should actually look like.

Labor costs here have moved considerably in the last two years and the national benchmarks feel useless as a reference point.