The short answer
Disinfectants That Kill Pathogens
The main chemicals in sewage cleanup are disinfectants. Chlorine bleach, often diluted with water, is a common choice because it kills many bacteria and viruses. Quaternary ammonium compounds, sometimes called quats, are another option that works well on hard surfaces and leaves less residue.
Pros may also use hydrogen peroxide-based cleaners, which break down into water and oxygen. These are gentler on some materials than bleach. The selection depends on what the sewage touched, so a professional will test surfaces and choose products that are both safe and effective for your home.
- Chlorine bleach diluted to a safe strength
- Quaternary ammonium compounds for hard surfaces
- Hydrogen peroxide-based disinfectants
- Phenolic disinfectants for certain materials
- Iodophors in some specialty cases
Detergents for Deep Cleaning
Disinfectants only work well on clean surfaces, so detergents come first. Heavy-duty degreasers and alkaline cleaners help lift oils, grime, and organic matter left by sewage. These are not disinfectants themselves, but they prepare the area so the disinfectant can do its job.
Pros often use a two-step process: clean with a detergent, rinse, then apply a disinfectant. Some products combine both steps, but the extra rinse is important in porous areas. You should never mix detergents with bleach, because the combination can release harmful fumes.
Odor Neutralizers and Encapsulants
Sewage leaves behind strong odors even after cleaning. Odor neutralizers work by chemically binding to the smelly compounds, not just covering them up. Some products contain enzymes that digest organic residue, while others use oxidizing agents to break down odor molecules.
For porous materials like drywall or wood, pros may use encapsulants. These seal the surface to lock in any remaining odor. In some cases, the material must be removed entirely, because no chemical can fully restore it after sewage contamination.
Safety Gear and Ventilation
Chemicals used in sewage cleanup are strong, so you need protection. Pros wear gloves, goggles, and respirators to avoid skin contact and inhaling fumes. They also open windows and use fans to keep the air moving, especially in small or enclosed spaces.
If you attempt any cleanup yourself, always read the label and follow the mixing instructions. Never combine products, and keep children and pets away until the area is dry. If you feel unwell from fumes, step outside and see a doctor if symptoms persist.
When to Call the Pros
Sewage cleanup is not a simple DIY job, especially when the spill is large or has soaked into walls and floors. The pros have the right chemicals and equipment to remove contaminated materials safely. They also know how to dispose of waste and sewage properly, which is important for your health and the environment.
If you live in Rockwall, a sewage backup can happen after heavy storms or plumbing failures. Acting quickly reduces the risk of mold and structural damage. For guidance on the full process, see the sewage backup cleanup page, and for related issues, check the toilet overflow or plumbing overflow pages.
- Large spills that cover more than a small area
- Sewage that has soaked into drywall or carpet
- Any sign of mold growth after the cleanup
- If you have a weakened immune system or respiratory issues
- When you are unsure which chemicals are safe to use
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Call (469) 698-4610 any time, day or night, and describe what happened.
Call Now (469) 698-4610Frequently asked questions
Can I use bleach to clean sewage myself?
Bleach is a strong disinfectant, but it only works on surfaces that are already clean. You must remove all visible sewage first. Also, never mix bleach with other cleaners, as it can create toxic gases. For large spills, professional help is safer.
Are those chemicals safe for my family?
The chemicals are safe when used correctly and allowed to dry completely. Pros follow label directions and use proper ventilation. After cleanup, they may rinse surfaces with water to reduce residue. Keep children and pets away until the area is fully dry.
What if the sewage smell stays after cleaning?
Persistent odors often mean some sewage remains in porous materials like wood or drywall. Pros may use specialized odor neutralizers or remove the affected material. If the smell continues, it could indicate hidden contamination, so a professional inspection is wise.