Have it cabled, and keep the invoice
Chesterfield runs a Residential Sanitary Sewer Lateral Repair Program, funded by a $28 fee on the St. Louis County real estate tax bill. It covers repairs to a failed lateral up to $15,000. Anything above that is the owner's.
The first step the city lists is to have the line cabled by a licensed plumbing company or a licensed drainlayer. If the problem comes back, you apply, and the cabling invoice goes in with the application. So does a notarized hold-harmless form, last year's tax receipt showing the $28 fee, and a $200 application fee that isn't refunded. The cabling itself isn't reimbursed. The city treats it as ordinary home maintenance.
The program doesn't apply to buildings with more than six units. Chesterfield Public Works answers questions about it at (636) 537-4762.
What the camera usually shows here
Much of Chesterfield was built as subdivisions from the 1960s on. The older ones have cast iron under the basement slab and clay outside, and they have reached the age where scale and roots show up.
Newer streets are plastic pipe, which roots rarely get into. When a plastic line backs up, the cause is more often a low spot where the trench settled, a kitchen line coated in grease, or wipes. A flat or sagging line that keeps collecting debris is a case for hydro jetting on a schedule.
MSD maintains the public mains in Chesterfield. If several houses on the street back up at once, report it to MSD at 314-768-6260. The line is answered around the clock.
Finished lower levels
A lot of Chesterfield homes have a finished lower level. If the cast iron under that floor is failing, get a lining quote next to the dig quote before anyone cuts concrete. A liner goes in through an existing opening and leaves the floor alone.
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