A sewage backup is more than an unpleasant mess — it's a biohazard. Contaminated “black water” carries bacteria, viruses, and parasites, which makes safe, complete cleanup a job for trained crews with proper protective equipment and disinfectants, not a mop and bucket.
Cube Restoration responds fast to sewage backups and overflows across San Jose, Santa Clara, and Campbell. We contain the contamination, extract the waste, remove materials that can't be salvaged, and disinfect every surface it touched to safe standards.
Then we dry the structure completely and treat any lingering odor at the source, so your home or business is genuinely safe to use again — not just cleaned up on the surface.
What’s Included
Emergency Containment
We isolate the contaminated area to protect the rest of the property.
Sewage & Wastewater Extraction
High-capacity pumps remove contaminated water and solid waste.
Safe Material Removal
Porous, contaminated materials are removed and disposed of to code.
Disinfection & Sanitizing
Hospital-grade disinfectants treat every affected surface.
Structural Drying
Industrial air movers and dehumidifiers dry the space to prevent mold.
Odor Removal & Deodorizing
We neutralize sewage odor at the source rather than covering it.
Common Causes of Sewage Backups
Sewage problems can start inside or outside the home. The situations we're called for most often include:
Clogged or Blocked Drains
Backups through toilets, tubs, and floor drains.
Collapsed or Broken Sewer Lines
Aging or damaged main lines failing underground.
Tree Root Intrusion
Roots cracking and blocking sewer pipes over time.
Heavy Storms & Flooding
Overwhelmed systems pushing water back inside.
Septic System Overflows
Full or failing septic tanks backing up into the home.
Sump Pump Failures
Pumps that quit at the worst possible moment.
Why Trust Cube Restoration With Sewage Cleanup
Safety First
Trained crews with proper PPE and disinfection protocols.
Fast Local Response
Quick dispatch across the South Bay, 24/7.
Complete Decontamination
Removal, sanitizing, drying, and odor control in one job.
Insurance Documentation
Thorough records that support your claim.
Our Process
Assessment & Containment
We inspect the damage and isolate the contaminated zone.
Waste & Water Extraction
Sewage and contaminated water are pumped out and disposed of.
Material Removal
Unsalvageable porous materials are removed safely.
Cleaning & Disinfection
Surfaces are scrubbed and treated with hospital-grade disinfectant.
Drying & Dehumidification
The structure is dried to prevent mold and odor.
Deodorizing & Final Check
Residual odor is treated and the area is verified safe.
When to Call Us
If any of these sound familiar, don’t wait — early action keeps the damage and the cost down.
- Sewage backing up through drains or toilets
- Dark, foul-smelling water indoors
- An overflowing septic system
- Gurgling drains and slow-draining fixtures
- Contaminated water in a basement or crawl space
- Strong sewage odor inside the home
- Multiple clogged fixtures at the same time
- Wet, stained flooring near drains
Sewage Cleanup FAQs
It's not recommended. Sewage carries pathogens that require protective equipment and proper disinfection to remove safely.
Porous materials that soaked up contaminated water — like carpet, padding, and some drywall — usually can't be sanitized and are removed.
Yes. Once contamination is removed, surfaces are disinfected, and the area is dried, we treat any remaining odor at the source.
Sewage carries pathogens that can cause serious illness, so direct contact should be avoided and cleanup left to trained crews with protective equipment.
Yes — contaminated water wicks into drywall, subfloor, and framing, which is why thorough extraction and disinfection are essential.
Yes. We document the loss thoroughly and can coordinate directly with your adjuster.