You flushed, and the shower drain in the basement started gurgling. Minutes later, raw sewage was coming up through the floor drain and both toilets. This is Category 3 blackwater, loaded with bacteria and viruses, and it is not something to mop up with household cleaners.
Free referral to independent, licensed and insured local pros. Zip codes served include 94028 94022 94303 94301 94306 94304 94302.

We are a referral line, not a contractor. Calls are routed to independent local pros around Palo Alto who handle biohazard sewage cleanup, not just clean-water leaks.
Expect Tyvek-style suits, respirators, and gloves. Contaminants stay in the work zone, not tracked through your home.
Containment walls and HEPA filtration keep sewage odors and particles from spreading through the house.
Confirm license and insurance on arrival. Biohazard jobs should only go to properly insured pros.
You get a written estimate that covers removal, disinfection, and drying before work starts.

Proper sewage remediation is methodical. Contamination is removed, every surface is disinfected, and only then does drying begin.

Sewage is pumped and vacuumed out with equipment reserved for contaminated water, then disposed of properly.
Anything porous that absorbed sewage, like carpet, drywall, and insulation, is removed and bagged.
Concrete, framing, and tile are cleaned and disinfected with EPA-registered products at the correct dwell time.
After disinfection, HEPA air scrubbers and odor control treatments remove lingering sewage odor from the air and structure.
Some contractors use ATP surface testing to confirm cleaning worked. Then drying equipment runs until materials read dry.
Call +1-877-637-9008, describe where sewage is coming up, and confirm everyone has stopped using water in the house.
You will get an arrival time and safety reminders while the crew is on the way.
Containment goes up first, then the pro maps the contamination and provides a written quote.
Contaminated materials are removed, surfaces disinfected, odors treated, and the area dried. The contractor may recommend a plumber to clear or camera the main line.
Stop using water and keep everyone away. Help can be on the way now.
Main line backed up into the basement shower and floor drain. The crew showed up in full suits, sealed off the basement, and cleaned it like a hospital. No smell after they left.
Carmen E.Main line backup, basementHonest about what had to be thrown away and why. I appreciated the explanation.
Steve R.Toilet overflow into finished roomWith kids in the house, I wanted it contained. The plastic barrier and air scrubber kept it all downstairs.
Jenna P.Sewage backup, family homeAfter cleanup, they suggested a camera inspection. Tree roots in the main line, now fixed.
Omar H.Recurring sewer backup

Sewage is Category 3 water, the most contaminated class. It contains bacteria, viruses, and parasites and requires protective gear, removal of porous materials, and disinfection.
Small, contained jobs may be fine. For large backups or vulnerable family members, staying elsewhere is often safer.
Tiny spills on tile may be manageable with protection. Anything soaked into carpet or walls should be handled by a pro.
Many standard policies exclude sewer backup unless you have a specific sewer or drain backup endorsement. Check your policy with your agent.
Tree roots, grease clogs, damaged pipes, and city sewer overloads are the usual culprits.
No. We connect you with independent local pros. Verify their license and insurance before work starts.

Calls from Palo Alto and zip codes such as 94028 94022 94303 94301 94306 94304 94302 are routed to local biohazard-equipped pros.
See nearby cities in the list below.
