When a toilet, tub, or floor drain pushes sewage into the house, it needs a contractor equipped for blackwater. One call routes you to a local pro with the PPE, containment, and disinfectants to handle it safely.
Free referral call. You are connected with an independent, licensed and insured local contractor.
Under IICRC S500, sewage is Category 3 water, the most contaminated class there is. The independent pros in our network handle it with that standard in mind.
Calls are routed to licensed and insured independent cleanup contractors who take blackwater jobs regularly. Ask whether their technicians hold IICRC certification in water damage or applied microbial remediation.
Every hour sewage sits, it wicks deeper into drywall and flooring and the odor travels further through the house. We find an available contractor near you and confirm the arrival window before you hang up.
Before demolition starts, you get the scope and the price from the contractor in writing. Many restoration contractors write estimates in Xactimate, the same software most insurance adjusters use.
Contractors who do this work carry disposable Tyvek coveralls, nitrile gloves, P100 respirators, boots, containment plastic, HEPA air scrubbers, and EPA-registered disinfectants. That gear keeps contamination in the affected area instead of tracking it through the house.
Removing the visible water is the easy part. The real work is getting rid of contamination that soaked into everything it touched.
Before cleanup starts, the contractor seals the affected area with poly sheeting and zipper doors and sets up negative air pressure with a HEPA air scrubber. That keeps airborne contaminants from drifting into clean rooms while materials are removed.
Standing sewage is extracted with pumps and dedicated extraction equipment, and the waste is disposed of according to local rules. Solids are removed by hand with shovels and bagged before the floor is treated.
Porous materials that absorbed sewage generally cannot be cleaned well enough to keep, so the contractor removes and bags them. That typically means carpet and pad, drywall cut a set distance above the waterline, wet insulation, and baseboards.
Hard surfaces that stay, like concrete, studs, and tile, are cleaned and then treated with EPA-registered disinfectants. The product has to stay wet for its labeled dwell time to work, and the contractor HEPA vacuums dust and debris from the work area afterward.
Sewage odor does not fade until contaminated material is out and the framing is dried. After removal and disinfection, the contractor runs air movers and dehumidifiers, checks framing with a moisture meter, and may use hydroxyl generators or other odor control to clear the air.
If the cause is not addressed, the backup tends to come back. Common causes are a mainline clog, tree roots in the sewer lateral, a municipal main surcharge during storms, a failed backwater valve, or an overloaded septic system. We can connect you with a plumber for a camera inspection, hydro-jetting, or backwater valve installation.
Keep everyone out of the area and call. We route a blackwater contractor while you are on the line.
Here is how the job typically moves after you pick up the phone.
On the call we ask which drains are backing up, how many rooms are affected, and whether it is still coming in. Stop using every toilet, sink, tub, and the washing machine, since all of it drains to the same line. Keep children and pets away, turn off electricity to the area if you can do so safely, and do not try to clean it yourself.
Once on site, the crew puts on full PPE (disposable suits, gloves, boots, respirators) before stepping into the affected area. Containment and negative air go up first so contamination stays in that space.
The contractor documents the spread with photos and moisture readings and notes which materials must come out. You get a written scope covering extraction, tear-out, disinfection, and drying, and a note on the likely cause so a plumber can address it.
At the end, the contractor shows you the cleaned, disinfected, dry area and the moisture readings that confirm it. You sign off on the completed scope, keep the photos and invoice for your claim, and ask about the contractor's workmanship warranty before rebuild begins.
Raw sewage often contains bacteria like E. coli and salmonella, viruses including hepatitis A and norovirus, and parasites such as giardia. Exposure happens through skin contact, splashes, and breathing in contaminated droplets during cleanup.
Young children, older adults, pregnant people, and anyone with a weakened immune system are most at risk. Pets track contamination through the house. Keep everyone out until the area has been cleaned, disinfected, and cleared by the contractor.
Each card describes a common pattern from calls this line takes, written as a typical scenario.
A homeowner finds dark water bubbling up from the basement floor drain during a heavy rainstorm. The city sewer main is surcharging. The contractor extracts the water, removes the carpet, pad, and lower drywall, disinfects the slab and framing, and sets up drying. A plumber later installs a backwater valve on the lateral.
A family runs the dishwasher and sewage comes up in the first-floor tub and toilet. A camera inspection finds tree roots packed into a clay sewer lateral. The cleanup contractor removes the bathroom vinyl and wet drywall and disinfects, and the plumber clears the line with hydro-jetting and prices a lining or replacement.
A rural property owner reports slow drains for days, then sewage on the laundry room floor. The septic tank is full and the drain field is saturated. The cleanup contractor removes and bags contaminated materials while the owner schedules a septic pump-out and inspection.
A landlord gets a late call from a tenant about a sewage smell and a wet bedroom carpet. A mainline clog caused the lowest drain to overflow. The contractor sets up containment, removes the carpet and pad, cleans and disinfects, and documents everything for the landlord's insurance.
These are typical situations callers describe, not quotes from specific customers.
Stay out of the affected rooms and keep kids and pets away. If the backup is large, reached bedrooms, or got into ductwork, ask the contractor whether it makes sense to stay elsewhere until cleanup is underway.
Non-porous items such as glass, metal, and hard plastic can usually be cleaned. Porous items that soaked up sewage, including carpet, pad, mattresses, upholstery, and drywall, are generally thrown out because they cannot be fully disinfected.
Odor lasts as long as contaminated material is still in the house. Once it is removed, surfaces are disinfected, and the framing is dry, the contractor can use odor control equipment for whatever lingers.
When several drains back up together, the blockage is usually in the main sewer line, not a single fixture. Tree roots, grease, collapsed pipe, a city main surcharge, or a full septic tank are common causes. A plumber can run a camera to find it.
It depends on where the blockage is. Problems in your sewer lateral are usually the property owner's responsibility, while a municipal main backup may lead to a claim with the city. Many homeowners policies exclude sewer backup unless you added a sewer backup endorsement, so check your policy.
A small amount on tile may be manageable with gloves and disinfectant, but once sewage reaches carpet, walls, or a whole room, it needs a contractor with proper PPE and containment to protect your health.
Calls from King and nearby communities in King, WI are routed to independent contractors who handle blackwater cleanup.
Backups show up everywhere: older houses with clay or cast iron laterals, homes on septic, and businesses whose drain lines cannot keep up. The contractor routed to you handles the cleanup, and we can also connect you with a plumber for the cause.
Finished basements, ground floor bathrooms, and laundry rooms where the lowest drain overflows first.
Landlords and property managers handling a backup that affects one or more units.
Commercial spaces where a sewage backup closes the doors until the area is cleaned and cleared.
Free referral call, any hour, with your arrival window confirmed before you hang up.
