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.
One free call connects you with an independent local specialist. Areas served include zip codes 94506.

Sewage is a health hazard first and a water problem second. A Water Damage is a free referral service that connects you with independent, licensed and insured contractors near Blackhawk who are equipped for Category 3 blackwater, including protective gear, containment, and hospital-grade disinfectants.
Crews wear disposable coveralls, nitrile gloves, rubber boots, eye protection, and respirators so pathogens do not leave the work area on their clothes.
Plastic barriers seal off the affected area, and HEPA air scrubbers create negative pressure so contaminated air does not drift into clean rooms.
Each contractor carries independent licensing and insurance. Ask for proof before work begins, especially for biohazard work.
Pricing for each phase is written down and approved by you first.

Sewage cleanup follows a strict order: contain, remove, clean, disinfect, verify, then dry. Skipping a step can leave pathogens behind long after the smell is gone.

Sewage is pumped and vacuumed out with equipment reserved for contaminated water, then disposed of properly.
Carpet, pad, drywall, insulation, and particleboard that touched sewage cannot be reliably disinfected and are bagged and removed.
Concrete, framing, and tile are cleaned and disinfected with EPA-registered products at the correct dwell time.
Air scrubbers and odor treatments clear the smell so it does not return once the area dries.
Cleanliness is checked, sometimes with ATP swab testing, before drying gets the area ready for rebuild.
Tell dispatch which drains are backing up and how far the sewage spread.
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 roomI have little kids, so I was worried. They set up an air scrubber and plastic walls so nothing spread upstairs.
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 Blackhawk and zip codes such as 94506 are routed to local biohazard-equipped pros.
See nearby cities in the list below.
