1. Stop the spread
Doors are closed, vents covered and the work area is isolated so contamination stays where it started.
Seattle, WA · King County
Sewage & Biohazard Cleanup in Seattle, WA
Sewage in a Seattle basement, garage or crawl space is a biohazard, not a mop-and-bucket job. Call (877) 812-4220. Cleanup technicians remove the sewage, bag the soaked materials and disinfect hard surfaces.
- Answered 24/7
- Unmarked vehicles
- OSHA bloodborne pathogen protocols
- Insurance claim help
If anyone is in danger, call 911 first. For a suicide crisis, call or text 988.
Sewage Cleanup Services for Seattle, WA Homes and Businesses
Sewage damage cleanup covers the liquid, the stains and the germs it leaves in flooring, walls, insulation and stored items. Porous materials that soak up sewage usually cannot be made safe and are removed.
Need residential or commercial sewage cleanup in Seattle or nearby parts of King County? Call Seattle Biohazard Cleanup Help for help in your basement, crawl space, garage, restroom, kitchen or utility room, wherever wastewater has spread.
Many homes in Seattle, about 53%, date from before 1980. Older plumbing is a common source of backups, and older flooring and trim soak up sewage deeply. About 56% of households in Seattle rent, so sewage backups often involve a landlord, a property manager and a tenant at once. Clear documentation of the cleanup helps everyone.
Sewage & Biohazard Cleanup in Seattle usually includes:
- Raw sewage removal from floors, basements, crawl spaces, garages and utility rooms
- Odor removal and deodorizing after the sewage has been taken out
- Tear-out of sewage-soaked carpet, padding, drywall, baseboards and insulation
- Cleanup of sewage under a house or in a crawl space where pipes have failed
- Bagging and proper disposal of contaminated materials as hazardous waste
Step by Step: Sewage Removal and Disinfection in Seattle, WA
2. Sewage extraction
Standing sewage is pumped or scooped out, and the contaminated area is mapped to see how far the liquid traveled.
3. Sanitize the structure
Framing, subfloor and concrete are cleaned and treated, since sewage can soak into surfaces that look dry.
4. Treat and verify
Disinfectant is applied to every affected surface, the space is dried and aired out, and the crew inspects the finished work.
Sewage & Biohazard Cleanup Cost in Seattle, WA
Sewage & biohazard cleanup in Seattle, WA typically costs $1,500 to $10,000, depending on the size of the affected area and the materials involved.
How long the sewage has been sitting plays a part. Older backups soak deeper into materials and leave stronger odors that take more treatment.
| Type of job | Typical range |
|---|---|
| Most homeowners | $2,000 - $10,000 |
| Category 3 sewage | $2,500 - $10,000 |
| Typical project | $2,000 - $10,000 |
| Category 3 sewage | $7.50 - $7.50 per square foot |
These ranges come from published cost guides (Bob Vila, Fixr, BioCleaners Directory, Biohazard cleanup company pricing guide) and are not a quote for Seattle. Price drivers include square footage affected, category of water, porous materials that must be removed, drying time. For a real number, call (877) 812-4220.
Raw Sewage Cleanup: Questions from Seattle, WA Property Owners
What are the signs of a sewage leak?
Watch for a rotten-egg or sewer smell, wet spots or stains on floors and walls, unusually green grass over a pipe, and multiple drains backing up at the same time. If any of these show up, keep people away from the area and have the cause checked.
How do I clean sewage off concrete?
Concrete is porous, so sewage soaks in. The surface is scrubbed, rinsed and treated with a disinfectant, and the wash water is collected rather than spread. Stubborn odor may need a second round of treatment.
Can a sewage cleanup service work at night or on weekends?
Yes. Sewage backups do not wait for business hours, so you can call Seattle Biohazard Cleanup Help any time, 24/7. Describe what happened and you get the next safe step explained.
What should I do right after a sewage backup?
Keep everyone out of the area, including pets, and stop using sinks, tubs and toilets that feed the pipe. Turn off power to wet areas only if it is safe. Then call a cleanup team and your insurer, and take photos before anything is moved.
How do I know if sewage is leaking under my house?
Common signs include a sewer smell in the yard or crawl space, soft or damp ground near the foundation, gurgling drains and slow drains in several fixtures at once. A plumber can confirm the leak. Once it is found, a cleanup team can take care of the contaminated soil, materials and odor.
Do sewage cleanup companies handle commercial properties?
Yes. Commercial sewage cleanup in restaurants, offices, shops and apartment buildings follows the same biohazard steps, with added attention to keeping part of the building usable and to documentation for managers and insurers.
Related Biohazard Cleanup Services in Seattle, WA
- Biohazard Decontamination in Seattle
- Human Feces & Urine Cleanup in Seattle
- Bodily Fluid Cleanup in Seattle
- Medical Waste Removal in Seattle
- Needle & Sharps Cleanup in Seattle
- Sewage & Biohazard Cleanup in Medina, WA
- Sewage & Biohazard Cleanup in Clyde Hill, WA
- Sewage & Biohazard Cleanup in Yarrow Point, WA
Raw sewage on the floor in Seattle, WA?
Keep people and pets out, then call (877) 812-4220.
Call (877) 812-4220