Sewage & Category 3 Cleanup
Category 3 water carries bacteria, viruses and other pathogens. Our crews contain it, remove it in full protective equipment, decontaminate the structure, and document every step to the IICRC S500 standard. Same day response across the San Fernando Valley and Ventura County.
Free inspection·We bill insurance direct·24/7 response·IICRC Certified Technicians
Why it matters
Category 3 water, the kind from a sewage backup or flooding, is not a mess to mop up. It is a biohazard. The safest thing you can do before we arrive is stay out of it and keep everyone else out too.
If the water has been sitting, or if it came from sewage or outside flooding, treat it as contaminated and call right away. The longer it sits, the more it spreads and the more has to come out.
What we do
We seal off the affected area with barriers and negative air so contamination does not spread to the clean parts of your home.
Crews remove the contaminated water in protective suits, gloves and respirators, never with household equipment.
Porous materials that touched Category 3 water are removed, bagged and disposed of by the rules, not dried in place.
HEPA vacuuming and air scrubbers pull fine contaminated particles out of the air and off every surface.
Hospital grade antimicrobial application kills the bacteria, viruses and mold spores left behind on the structure.
Carbon and hydroxyl treatment neutralizes the sewage gases a HEPA filter cannot catch, and we verify the air before any rebuild.
Know the category
Water is graded by how contaminated it is. Category 3 is the most serious, and it changes everything about how the loss has to be handled, including what can be saved and what has to come out.
Category 3 water can carry E. coli, hepatitis, parasites and other pathogens. Contact, and even the airborne particles, are a real health risk.
Standing contaminated water can start growing mold in about 24 to 48 hours, which turns a cleanup into a larger remediation.
The S500 standard does not allow porous materials that absorbed Category 3 water to be dried in place. They are removed and replaced.
We classify the loss and document the category from the first walkthrough, because that classification is what justifies the containment, the removal and the decontamination on your invoice.
At a glance
HEPA vacuuming, antimicrobial application, fogging and disinfection, odor control, and a final air quality check. The full decontamination workflow in one place.
Common causes
How it works
We isolate the area with barriers and negative air, then extract the contaminated water in full protective equipment.
Porous materials that touched Category 3 water are removed, bagged and disposed of following regulations.
HEPA vacuuming, hospital grade antimicrobial, and carbon or hydroxyl odor control across every affected surface.
We dry the structure to standard, verify the space is clean and odor free, then rebuild to pre loss condition.
Insurance
Category 3 jobs carry real costs that some adjusters push back on. We document each one to the standard so it holds. HEPA vacuuming for indoor air quality. Carbon and hydroxyl odor control for the sewage gases a HEPA filter does not capture. Antimicrobial application. And the removal of porous materials the S500 standard does not allow to be dried in place. We bill your carrier directly and back every line item.
Questions
Yes. Sewage is Category 3 water, meaning grossly contaminated, and it can carry bacteria, viruses, and other harmful agents. It is not a do it yourself cleanup. Contact with it, or with the air around it, poses a real health risk, which is why it requires protective equipment, removal of porous materials it has touched, and disinfection.
Category 3 is the most contaminated class of water damage under the IICRC S500 standard. It includes sewage backups, toilet overflows involving waste, and flood water that has come in from outside. Because it carries pathogens, the protocol is stricter than for clean water: containment, full protective equipment, removal of affected porous materials like drywall and carpet, and antimicrobial treatment.
Usually not. Porous and semi-porous materials that absorb Category 3 water, such as carpet, pad, and drywall, generally must be removed rather than cleaned, because the contamination cannot be reliably disinfected once it soaks in. Hard, non-porous surfaces can often be cleaned and disinfected. We document what must go and why, so it is defensible on your claim.
Often for the affected area, yes. We set up containment to keep the contamination from spreading, and depending on the size and location of the loss, you may need to stay out of that part of the home until it is cleaned and cleared. We will tell you honestly what is safe.
Sometimes, but not always under a standard policy. Many homeowners policies exclude sewer and drain backups unless you carry a specific backup endorsement, though water damage from a sudden internal failure may be covered. We document the source and the loss carefully so the claim reflects what actually happened, and we work directly with your adjuster.
We extract the contaminated water, remove porous materials that cannot be salvaged, clean and disinfect hard surfaces with EPA registered antimicrobials, then dry the structure to the S500 standard and confirm it with moisture readings. The goal is to return the space to a safe, pre loss condition, not just to make it look clean.
We respond 24 hours a day, because Category 3 losses get worse and more hazardous the longer they sit. The faster we contain and remove the contamination, the less it spreads and the lower the health risk and the cost.
Yes. Our IICRC WRT certified technicians follow the S500 protocols for Category 3 work, including containment, protective equipment, and disinfection. We are licensed, CSLB #1157517, and insured.
Most residential sewage cleanups take a few days, though it depends on how far the contamination spread and how much material has to be removed. Category 3 work involves containment, removing porous materials that cannot be salvaged, disinfecting, and then drying the structure to standard, which adds time beyond a simple water extraction. We give you a realistic timeline once we have assessed the extent, rather than a guess up front, and reconstruction of anything removed comes after the space is confirmed clean and dry.
Related services
Do not touch it. Call for same day emergency response across the San Fernando Valley and Ventura County. Free inspection, and we bill your insurance directly. For 24/7 sewage cleanup across the San Fernando Valley and Ventura County, call iDri at (747) 204-4444.
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