Where the sewer rules change
A sewer lateral behaves the same way on both sides of a village boundary. The rules about who owns it, who pays to reach it and what has to be proved first do not. These five suburbs each publish their own answer, and none of them is the city's.
The City of Chicago runs a private drain program that may repair a drain broken under the public way, for a residential building of up to four units, at no cost to the owner. It is the most useful thing a Chicago homeowner can know about their sewer, and it stops at the city limits. Cross Austin Boulevard or Howard Street and it does not apply to you at all.
What replaces it is whatever your own municipality has written down, and those are not variations on a theme. Oak Park stops the owner's stretch at the curb line. Evanston's code names the parkway and the street and puts both on the property owner. Skokie will help with an unusually expensive repair, but only above $7,500 and only where the main is at least twelve feet down under a wide arterial. Berwyn has required video of the entire lateral before an investment property can transfer since August 2025. Elmhurst runs separate storm and sanitary systems, treats its own wastewater, and inspects what drains where before it will issue transfer stamps.
Five answers, from five municipalities, inside about twelve miles. Every one of them is published by the municipality itself and cited on the page it belongs to. That is the reason these are separate pages rather than a list of names at the bottom of the page about trenchless sewer repair in Chicago, and it is worth reading yours before you take a quote. Which method the work needs is a separate question, and it is answered on the services page.
Oak Park, IL The only suburb of the five whose code names the evidence you have to hand in: the measured distance to the obstruction.
Sewer rules in Oak Park 
Evanston, IL The one suburb here whose code carries the owner's responsibility all the way under the street, with no boundary in it anywhere.
Sewer rules in Evanston 
Skokie, IL The Village has already filmed every public sewer it owns and ranked them worst to best. Your lateral is the pipe it did not film.
Sewer rules in Skokie 
Berwyn, IL Since August 2025 the sewer lateral has been part of a property transfer here, on video, from the building to the main.
Sewer rules in Berwyn 
Elmhurst, IL The only one of the five with separate storm and sanitary systems and its own treatment plant, which changes what a leaking lateral costs everyone.
Sewer rules in Elmhurst What changes when you cross the line
- Oak Park
- Owner to the curb line. Past it, only if a street opening is needed.
- Evanston
- Owner all the way, including the pipe in the parkway or street.
- Skokie
- Private line. Village help only above $7,500, and only on a deep main.
- Berwyn
- Video of the whole lateral before an investment property transfers.
- Elmhurst
- Separate storm and sanitary, and a sump inspection before a closing.
Every line above is that municipality's own published wording, quoted and linked on its page. None of the five is the Chicago private drain program, which belongs to the city and is described on the camera inspection page.
Not sure which rules apply to your address?
They are set by whichever municipality bills you for water, and they are not the same on both sides of a boundary street. Send the address and what the drain is doing, and the answer starts with the line rather than with a method.
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