Insurance Denied My Sewage Backup Because I Didn't Have a Sewer Rider. What Now?
No sewer rider and the claim was denied? What a standard policy excludes, when the city may owe you, Utah's one-year notice rule, and what to do now.
Without a water-backup endorsement, a sewage backup is excluded under most standard homeowners policies, and the denial is usually correct. Your remaining options are a claim against whoever caused the blockage (the city, if it was the main line, or a plumber whose work failed) and paying for the cleanup yourself. Either way, the sewage has to come out now: it is Category 3 water, and every day it sits, more of the basement becomes unsalvageable. A homeowner with six inches of sewage in the basement after a city main blockage asked us this, so here is the order of operations.
Sewage in the basement? Stay out of it and call 24/7 · (801) 948-2501.
This is general information from a Utah mitigation company, not legal advice. For your rights under a specific policy, talk to the Utah Insurance Department or an attorney.
Why was the backup excluded?
The Utah Insurance Department says plainly that water damage from backed-up drains or sewers is not covered under most standard homeowners policies, and that some insurers sell endorsements to add it. That endorsement goes by several names: water backup and sump discharge or overflow, sewer and drain backup, or just the sewer rider. If it isn't on your declarations page, the carrier has a clean exclusion to point at.
In our experience, most Utah homeowners with basements do carry it. Keystone asks about the endorsement before we start work for exactly this reason. Where it exists, it often carries a sublimit, commonly $5,000 to $10,000, which is less than a full Category 3 cleanup and rebuild on a finished basement. We work within those caps regularly; a capped endorsement is a very different situation from no endorsement at all.
Can I make the city pay?
Sometimes. Responsibility splits at the property line:
- Your lateral (the pipe from the house to the main) is yours to maintain. Roots, grease, wipes and a bellied line are your problem.
- The main is the city's or the sewer district's. If a blockage in the main pushed sewage back into your home, the district's negligence may be at issue.
Two things to know before you expect a check. First, cities don't pay just because the main backed up; generally they owe you only if they were negligent in maintaining it, which is a legal question. Second, Utah has a hard deadline. Under the Governmental Immunity Act, Utah Code § 63G-7-402, a claim against a governmental entity is barred unless a written notice of claim is filed within one year after the claim arises. Many districts also have a separate claims form. Call the district the week it happens, ask for their claims process in writing, and keep every receipt.
If the cause was a plumber's work (a line that was snaked and broke, a clean-out left open), their liability insurance is the other avenue.
What do I do first?
- Stop using water in the house. Every flush and load of laundry adds to the backup.
- Keep people and pets out. Category 3 water carries bacteria, viruses and parasites. The safety basics are in sewer backup in your basement: what to do.
- Get a plumber to find and clear the blockage. Ask for a camera inspection and a written statement of where the blockage was. That line in the report is what makes or breaks a claim against the city.
- Photograph everything before anything is removed: water line on the walls, contents, the drain it came from.
- Call a mitigation company that handles Category 3 water. This is not a shop-vac job.
- File the notice of claim with the city or district if the main was involved, even if you're not sure you'll pursue it.
What does sewage cleanup actually involve?
Category 3 water changes the rules. Carpet, pad, drywall and insulation that touched sewage are removed and disposed of, not cleaned. Hard, sealed surfaces can be disinfected and kept. The crew works under containment with protective equipment, extracts, removes contaminated porous materials, applies an antimicrobial, dries the structure with documented moisture readings and hands you a report. The full picture is in why Category 3 water cleanup is different.
What usually has to go on a finished basement: carpet and pad, the bottom two feet of drywall and insulation, anything porous that was on the floor. What can often stay: tile, sealed concrete, framing that dries to standard.
What if I'm paying out of pocket?
On a covered claim, Keystone doesn't bill you for any part of the invoice the carrier doesn't pay. A denied claim is different; the job is billed to you. Keystone specializes in denied claims and offers financing with 25% to 30% down, so the sewage doesn't sit while you argue with the city.
Two ways to keep the cost down: keep the plumber's report and every receipt, because they are your evidence for a claim against the district, and don't let anyone talk you into "just cleaning" porous materials that touched sewage. That saves money this month and costs a mold job next spring.
Should I add the endorsement now?
Yes, before the next one. Ask your agent for water-backup coverage and ask what the limit is. For a finished basement, a $5,000 sublimit is a token; $25,000 or more is closer to real protection.
What's not included: Keystone handles the sewage removal, tear-out, disinfection and drying. Rebuilding the basement is our sister company, Keystone BuildWorks. We aren't public adjusters or attorneys and can't file your claim against the city.
Need Category 3 cleanup today? Call 24/7 · (801) 948-2501.
Questions about your specific situation? Talk to us — advice is free, 24/7.