New Water/Sewer line in Chicago cost $20k+?

[Daniel Adler]

I have a coach house that I will begin a rehab of in April, and have been soliciting estimates from GCs to complete all of the work. The existing water and sewer are tied to the main house, which already has low water pressure, so I believe running a new water line is the best course of action. However, the three quotes I've gotten have all been north of for this work, which seems high to me. Granted the water main is on the other side of the street, so it's a longer trench they need to dig, but it still seems like a lot of money for what is basically put two pipes in the ground. For anyone that has experience with this, does the cost seem about correct?