Bathroom remodel cost in Chicago.
Chicago will not issue a plumbing permit to anyone except a licensed plumbing contractor bonded with the city. That single rule puts a floor under what a bathroom remodel costs here, and it is why the cheapest quote in your inbox is often the one that cannot be permitted.
Bathroom remodel cost in Chicago by project scope
| Cosmetic refresh (fixtures, paint, vanity) | $3,200 – $8,600 |
| Mid-range full remodel | $8,600 – $19,400 |
| High-end / luxury remodel | $21,600 – $48,600 |
Local labor in Chicago runs about 8% above the national baseline, and the ranges above already reflect that.
Licensed, bonded, and named on the permit
Under the city plumbing code, no permit is issued for the installation of plumbing except to a licensed plumbing contractor registered and bonded with Chicago. Altering, reconfiguring, or extending an existing plumbing system is permitted work, not handyman work, and the permit carries a specific contractor's name.
The general contractor is licensed separately. Chicago requires a city general contractor license for work that needs a building permit, issued in five classes by project value, from Class E at up to $500,000 through Class A with no limit. A remodeler who cannot pull a permit is a remodeler who will ask you to pull it yourself.
What is behind the wall in a pre-war building
Older two-flats, courtyard buildings, and bungalows commonly still run cast iron drain stacks and galvanized supply piping. Opening a wall for a new shower valve regularly exposes pipe that no inspector will allow new work to tie into, at which point partial repiping becomes part of the job rather than an option.
Vertical stacks are usually shared. In a two-flat or a condo, moving a fixture off the existing stack means work that leaves your unit, which turns a private remodel into a building conversation and, in a condo, into an association approval with its own timeline.
The lead service line question
Chicago required lead service lines by ordinance until 1986 and is estimated to have roughly 400,000 of them, more than any other US city. Illinois enacted the Lead Service Line Replacement and Notification Act effective January 2022, and Chicago's replacement deadline under that law runs to 2077.
None of this changes the price of a shower valve, but it changes what is worth asking while the walls are already open. If the building still has a lead service line, the plumbing access you are paying for anyway is the cheapest moment you will get to address it.
Chicago bathroom remodel: what to verify
- The plumbing contractor's city license and bond, and that the permit is issued in their name.
- The general contractor license class held by whoever is actually running the job.
- What the existing drain stack and supply lines are made of, established before demolition.
- Whether the fixture layout stays on the existing stack, and the cost consequence if it does not.
- For a condo or two-flat, the association approval and the building's permitted work hours.
The classic overrun here: Opening a wall and finding galvanized supply or a cracked cast iron stack. Ask for a contingency line priced up front rather than meeting it as a change order in week two, when you have no leverage and no alternative.
Chicago bathroom remodel: FAQ
Do I need a licensed plumber for a Chicago bathroom remodel?
Yes, and the rule is stricter than in most cities. Chicago issues plumbing permits only to a licensed plumbing contractor bonded with the city, and altering or extending an existing plumbing system requires a permit. The plumbing cannot be handed to an unlicensed trade.
Does my contractor need a license to pull the permit?
For work requiring a building permit, yes: a City of Chicago general contractor license, issued in five classes from Class E, capped at $500,000 of project value, up to Class A with no limit. A home repair license does not cover permitted work.
Why do Chicago bathroom remodels run over budget?
Most often because of what is behind the plaster. Pre-war buildings here commonly still carry cast iron stacks and galvanized supply lines that new work cannot legally tie into, so a fixture swap becomes partial repiping once the wall is open.
Should I deal with a lead service line during a remodel?
It is worth asking about. Chicago mandated lead service lines until 1986 and has roughly 400,000 of them, with replacement governed by a state law effective 2022 on a schedule reaching 2077. If the plumbing is already open, the access cost is already spent.