1. Call and plan
The team asks what happened, where the sewage is and who uses the space, then plans the right crew and equipment.
Atherton, CA · San Mateo County
Who cleans up sewage after a backup in Atherton? A sewage cleanup company does, at any hour. Call (877) 812-4220 to get sewage removal, Category 3 decontamination and odor control in homes, rentals and businesses.
If anyone is in danger, call 911 first. For a suicide crisis, call or text 988.
Sewage cleanup is the removal of raw sewage and everything it soaked into, followed by cleaning and disinfection of the affected area. Because sewage carries bacteria and viruses, it is handled as a biohazard.
Need residential or commercial sewage cleanup in Atherton or nearby parts of San Mateo County? Call Atherton Biohazard Cleanup Help for help in your basement, crawl space, garage, restroom, kitchen or utility room, wherever wastewater has spread.
San Mateo County carries a Relatively High river flood risk rating from FEMA, and rising water can overload sewer pipes and push wastewater back up through floor drains. Atherton averages about 19 inches of rain a year. Backups here usually come from blockages, roots or broken pipes rather than storms, but the cleanup is the same.
What sewage & biohazard cleanup covers:
The team asks what happened, where the sewage is and who uses the space, then plans the right crew and equipment.
Wastewater is taken out of the building, and standing liquid in crawl spaces or low corners is cleared.
Framing, subfloor and concrete are cleaned and treated, since sewage can soak into surfaces that look dry.
Hard surfaces and framing are cleaned and disinfected, odor is treated, and the crew checks the area before it is cleared for use.
Sewage & biohazard cleanup in Atherton, CA typically costs $1,500 to $10,000, depending on the size of the affected area and the materials involved.
The amount of sewage and how far it spread is the biggest factor. A single bathroom overflow takes less work than a flooded basement.
| Type of job | Typical range |
|---|---|
| Category 3 sewage | $7.50 - $7.50 per square foot |
| Category 3 sewage | $2,500 - $10,000 |
| Typical project | $2,000 - $10,000 |
| Published span | $1,500 - $8,000 |
Estimates only, not a quote. Sources: Bob Vila, Fixr, BioCleaners Directory, Biohazard cleanup company pricing guide. Price drivers include square footage affected, category of water, porous materials that must be removed, drying time. Call (877) 812-4220 to talk through the job.
A septic overflow is cleaned as raw sewage, both inside any affected building and on nearby ground. Contaminated soil, materials and surfaces are handled and disinfected. A septic service may also need to empty or repair the tank.
Treat it as raw sewage. Keep people out of the bathroom, stop using the fixture and call for cleanup. The liquid can reach under flooring and into walls, so a crew checks beyond the visible puddle.
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.
If the cleanup missed contaminated materials, germs and odor can linger. That is why crews remove porous materials, disinfect every surface they touched and inspect the work. Thorough removal is what lowers the risk.
Yes. Raw sewage is Category 3 contamination and can carry bacteria, viruses and parasites. That is why cleanup crews wear protective gear and remove porous materials instead of just drying them.
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.
A cleanup team can start with a safe plan as soon as you call.
Call (877) 812-4220