5 Scope Lines That Set Your Chicago Bathroom Remodel Cost

Why Chicago Bathroom Prices Look so Far Apart

Search this topic and the numbers will not agree. That is not a sign of bad math. Each page below is pricing a different job, and only the report spells out its scope line by line.

Treat every figure here as a published example and not as a quote for your home. A low average can include small repairs, and the top of the range can include a bigger room. The useful question is never what a bathroom costs. It is what this scope costs.

What the Report Prices, and What Comes Back

The Cost vs Value report from the Journal of Light Construction is the most useful public yardstick, because it says what each job includes. The midrange job updates a 5 by 7 foot bath with a new 30 by 60 inch tub, a ceramic tile surround, a pressure balanced shower control, a standard toilet, a solid surface vanity top and a ceramic tile floor.

The upscale job is a very different project. It expands a 35 square foot bath to 100 square feet inside the house footprint and relocates all the fixtures. It adds a frameless glass shower, a freestanding soaker tub, a stone top with two sinks and a separate toilet area.

Subtract the midrange cost from the upscale cost and the gap is $52,452, using the report's Chicago rows. Resale value rises by only $10,216 across that same gap. So the extra money mostly buys the room you get to live in, and that can still be a fine reason to spend it. Chicago also trails the nation on the midrange job, at 66.4 percent against 80 percent, and on the upscale job, at 34.2 percent against 41.7 percent.

These are 2025 figures, the newest Chicago rows the report shows. Use them to compare jobs with each other, then get your own written price.

Line 1, Keep the Plumbing Where It Sits

The first line to settle is whether any fixture moves. One renovation platform lists $1,500 to $3,500 to move a toilet, $500 to $1,500 to move a sink, and $1,000 to $5,000 or more to move a shower or tub. A Chicago contractor puts moved plumbing at $3,000 to $6,000. Your walls and your floor framing decide the real number.

A move can change your permit path too. The city's Express Permit Program treats these jobs differently.

• Repairing or replacing an existing fixture, or existing piping inside the building, is eligible as plumbing work.
• Altering, reconfiguring or extending the system is not eligible as plain plumbing work, though limited changes may fit as a nonstructural interior alteration.
• Inside one home, that alteration path allows up to 5 water supply fixture units of added demand. The city's own example counts a new private bathroom as 4.
• Structural work is not eligible at all.

The city does not refund the review fee or permit fee on an application it finds ineligible, so pick the path before you file. Each suburb runs its own building department.

Measure before you draw a new layout. The 2021 International Residential Code, section P2705.1, sets the model spacing, and your local code has the final word.

Line 2, Price the Building Before the Tile

Two identical rooms can carry different bills because of the building around them. A bungalow owner decides alone. A condo owner usually answers to a board, and the board's rules can add cost before any tile arrives.

One Chicago contractor publishes these condo and older building figures. Read them as one company's examples.

Before a condo bid comes in, ask your association for its renovation rules in writing. You want the work hours, the elevator rules, the insurance it wants to see, and any waterproofing proof it wants before tile. Then hand that sheet to every contractor who bids, so all of them price the same building.

Line 3, Find Out What Sits Behind the Walls

Older Chicago homes hold the costs that no bid can see from the doorway. Start with three dates, and each one sends you to a free public source.

The city says a house, two flat or small building from before 1986 has a high likelihood of a lead service line, out of roughly 400,000 in Chicago. A lead line does not by itself mean high lead at your tap, and the city adds corrosion control to the water. Chicago residents can also ask for a free water test.

If your line is lead, price that decision alongside the bathroom. Lead Safe Chicago says homeowners who meet income rules may get a free full replacement, which it values at $16,000 to $30,000. Homeowners who hire their own contractor to replace the full line can get up to $5,000 in permit fees waived.

Inside the wall, a Chicago contractor lists $2,500 to $4,000 to replace a galvanized or cast iron stack and $800 to $2,000 for hidden water damage. The same page suggests holding back 10 to 15 percent as a contingency, and that is a sensible habit in any older home. Ask each bidder how they handle a surprise, and how the price gets approved in writing before the work goes on.

The EPA says about three quarters of homes built before 1978 still have some lead based paint. Anyone paid to disturb painted surfaces in those homes has to follow its lead safe rules, so ask how dust will be contained before demolition starts.

Line 4, Put the Fan and Outlets in Writing

Ventilation and outlets are easy to leave off a bid because you cannot see them in a design photo. They are also cheapest to fix while the walls are open. Chicago and each suburb adopt their own codes, so treat these national model rules as the starting point and ask your inspector.

Older attics and top floor baths are where the fan rule tends to bite. If the old fan dumps into the attic, the new one needs a real path outdoors, and that path belongs in the price. A sloped ceiling in a bungalow or attic bath needs a tape measure over the shower before you commit to the layout.

Line 5, Get the Full Scope in the Illinois Contract

The last line turns the first four into something you can compare and enforce. Illinois backs you up here through the Home Repair and Remodeling Act.

• Section 15 says that before work over $1,000 starts, the contractor has to give you a written contract or work order. It must state the total cost, with parts and materials listed with reasonable particularity, plus the business name and address.
• Section 20 says the contractor has to give you the pamphlet called Home Repair, Know Your Consumer Rights, before you sign. On contracts over $1,000 you both sign an acknowledgment form.
• Section 25 requires remodeling businesses to carry liability and property damage insurance, with stated minimums, unless the business shows a net worth of at least $1,000,000. Ask to see the certificate.

Plumbing has its own rule. The Illinois Department of Public Health says people who install, alter or repair plumbing systems in the state must be licensed. Chicago lets an owner or occupant of a single family home do their own plumbing, but it does not let them hire anyone other than a licensed plumbing contractor.

Use the contract to line up your bids side by side. Any bid that leaves one of these blank has not priced the same job.

1. Which fixtures stay, which move, and who handles the plumbing.
2. Who pulls the permit and books each inspection.
3. The shower waterproofing method and whether a flood test happens before tile. The tub to shower guide on this site covers the liner and the test.
4. Brand, model or allowance for the tile, vanity, top, faucets, tub and glass.
5. The fan, its outdoor path, and every new outlet and light.
6. How a surprise behind the wall gets priced and approved.

Half Truths

A Chicago bathroom costs about one set price. No single average means much when public figures run from $1,234 to more than $100,000. Scope first, number second.

A bathroom remodel pays for itself at resale. The 2025 report shows 66.4 percent back on the midrange job in Chicago and 34.2 percent on the upscale job. Remodel because you want the room.

The lowest bid is the best deal. It may be, but only if it covers the same plumbing, permits, waterproofing and finishes as the others. The contract list above shows you quickly.

A homeowner can do plumbing, so a handyman can too. Chicago draws that line clearly. The exception covers your own hands, not someone you hire.

We are a family-owned remodeler, and we build everything from walk-in showers to full gut bathrooms done to the studs. At a free in home estimate, Alvin walks the room with you and sends a written scope, materials list and schedule. When the job needs a permit, SRC pulls it and books the inspections. Call or text (708) 765-6663.

Answers on Call

Another Angle

• Bathroom remodeling with SRC
• Keep the tub in until you check these 7 things
• The Chicago kitchen remodel cost and permit guide
• Book a free in home estimate