Sewage Backup in Colorado Springs: Who's Responsible and What to Do

Nothing ruins a Tuesday like sewage coming up through your basement drain instead of going down it. It's one of the calls we take the most seriously, because unlike a clean-water leak, sewage backup is a Category 3 biohazard from the moment it hits your floor — and in Colorado Springs, where a lot of the sewer infrastructure and mature tree-lined neighborhoods date back 40, 50, even 70 years, it happens more often than people expect.

If you've just discovered sewage backing up into your Colorado Springs home, call us right now at (719) 676-2456 — we run 24/7 emergency response and we don't wait until morning to start extraction on a biohazard. Once you've got that call started, here's what you need to know about why this happens in Colorado Springs specifically, who's actually responsible for the cost, and what happens during proper cleanup.

Why Colorado Springs Homes Are Prone to Sewer Backups

Colorado Springs Utilities maintains the main wastewater lines that run under the street, but every home also has its own wastewater service line — typically a 4-inch pipe — connecting the house to that main line. Under CSU's own wastewater backup policy, homeowners are responsible for maintaining that service line, and that's usually where the trouble starts.

The most common cause we see, and one CSU calls out directly, is tree roots. Colorado Springs has a lot of established, mature trees — something the whole city takes pride in — but tree roots are relentlessly good at finding water, and an aging clay or cast-iron service line with even a hairline crack is exactly what a thirsty root system will grow into. Once roots get inside a pipe, they trap toilet paper, grease, and debris until the line is fully blocked, and everything backs up — usually into the lowest drain in the house, which in most homes is a basement floor drain or a basement bathroom.

Other common culprits in Colorado Springs and the surrounding area:

• Aging clay sewer lines in neighborhoods built before modern PVC piping became standard
• Grease and wipes (yes, even "flushable" wipes) building up over years
• Heavy summer thunderstorms overwhelming older combined or undersized systems, especially in low-lying areas
• Line collapses from ground settling, which is common with Colorado Springs' expansive clay soils

Who's Responsible: You or the City?

This is the question everyone asks first, and the honest answer is: it depends on where the blockage is.

Under Colorado law, Colorado Springs Utilities is legally responsible for damages if a backup was caused by their negligence in maintaining the public main line. But CSU is explicit that they are not responsible for damage caused by events beyond reasonable maintenance — including severe storms and flooding — or for blockages in your private service line, which is your responsibility to maintain, just like the plumbing inside your house.

In practice, most residential backups happen in the private service line, not the city main — which means most homeowners end up filing a claim with their own homeowner's insurance rather than the city. CSU does note that even when they're not legally obligated to pay (because the cause wasn't their negligence), they may voluntarily contribute up to $12,500 toward a qualifying residential claim. That's worth knowing, but it's not a substitute for having your own coverage in place — many standard homeowner's policies don't automatically cover sewer backup, and you may need a separate endorsement or rider. Check your policy now, before you need it.

CSU also recommends having your private service line professionally cleaned every two years, or more often if you're in an older neighborhood with large, established trees. That single maintenance step is often cheaper than one flooded basement.

Why You Can't Treat Sewage Backup Like a Regular Water Cleanup

Standing water from a burst pipe is unpleasant, but it's "clean" or "gray" water. Sewage backup is Category 3 — black water — and it's genuinely dangerous. It can carry bacteria, viruses, and parasites, and it contaminates anything porous it touches: carpet, carpet pad, drywall, baseboards, and untreated wood. That's not something you can mop up and disinfect with a household cleaner and call it done.

Here's how we approach it:

1. Safety first — we treat the area as a biohazard zone from the first step in the door. That means personal protective equipment, and keeping kids and pets away from the affected area entirely.
2. Extraction — we remove standing sewage water with truck-mounted extraction equipment, not shop vacs, which aren't built to safely handle contaminated water.
3. Removal of contaminated porous materials — carpet, pad, and drywall that have been in contact with Category 3 water typically can't be saved and have to be removed and disposed of properly.
4. Cleaning, disinfection, and antimicrobial treatment — every surface that came in contact with the water gets sanitized, not just visibly cleaned.
5. Structural drying — industrial air movers and dehumidifiers bring the space back to a safe, dry baseline, which also protects against the mold growth that follows any water intrusion in a humid, enclosed space.
6. Documentation for your insurance claim — we photograph and log everything before removal, which matters a lot if you're filing with your homeowner's insurance or pursuing a CSU claim.

What to Do in the First Few Minutes

• Don't run any water in the house — more water going down the drains just adds to the backup.
• Stay out of the affected area — sewage contact carries real health risk, especially for children, pets, anyone immunocompromised, or anyone with open cuts.
• Don't try to snake or clear the line yourself if the backup is already inside the house — you can push the problem further into your plumbing or make the flooding worse.
• Call us at (719) 676-2456 — we'll walk you through safety steps over the phone while we're on the way.
• Photograph the damage before anything is moved, for your insurance claim.

We're Here for Colorado Springs, 24/7

Stars and Bars Restoration is IICRC certified and veteran-owned, and we handle sewage and biohazard cleanup across Colorado Springs, Pueblo, and the rest of Southern Colorado. We know the neighborhoods where older clay lines and mature trees make backups more common, and we know how to document a claim properly whether you're going through your own homeowner's policy or dealing with Colorado Springs Utilities.

If sewage is backing up into your Colorado Springs home right now, don't wait — call (719) 676-2456. And if you want to get ahead of the problem before it happens, get your private service line inspected and cleaned on a two-year cycle; it's a small cost compared to a flooded, contaminated basement.

For related reading, see our guides on sewage cleanup and biohazard response and what your homeowner's insurance does and doesn't cover for sewage backups.