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Sewage backups are one of the most hazardous water emergencies a home or business can face. Unlike clean water, raw sewage carries bacteria, viruses, parasites, and other pathogens that classify it as Category 3 "black water" under IICRC standards. Whether the cause is a backed-up main line, a failed septic system, a toilet overflow, or storm-driven flooding common along the Grand Strand, contaminated water needs to be handled quickly and correctly to protect your family, your employees, and your property.

Clean Sweep Enterprises has provided certified disaster restoration to coastal South Carolina since 1991. As a woman-owned, IICRC-certified company, we treat every sewage loss as a biohazard event: containing the affected area, extracting contaminated water, removing unsalvageable porous materials, and disinfecting every surface that came into contact with the spill. Our technicians follow established health and safety protocols and document the entire process so the job is done right the first time.

We answer the phone 24/7, because sewage damage only gets worse and more expensive the longer it sits. From the moment we arrive, we work to stop the spread, dry the structure, and restore a safe, sanitary environment. We also coordinate directly with your insurance carrier and document the loss thoroughly so you can focus on getting back to normal.

What Our Sewage Cleanup Service Includes

  • 24/7 emergency response and biohazard containment
  • Contaminated (Category 3) water extraction
  • Removal and disposal of unsalvageable porous materials (carpet, pad, drywall, insulation)
  • Antimicrobial cleaning and EPA-registered disinfection of affected surfaces
  • Structural drying and dehumidification to prevent mold
  • Deodorization and air scrubbing with HEPA filtration
  • Sanitization of hard surfaces in the affected zone
  • Documentation and direct billing coordination with your carrier

Common Causes

  • Sewer line backups
  • Septic system failures
  • Storm-driven sewer surcharge
  • Toilet & drain overflows

Our Process

1
Biohazard containment & PPE setup
2
Contaminated material removal
3
Hospital-grade disinfection
4
Deodorizing & restoration

Our Category 3 Response, Step by Step

A sewage call is treated as a biohazard response from the moment we arrive, not just a bigger water job. Technicians suit up in appropriate personal protective equipment before entering the affected area, and containment goes up to keep contaminated water and airborne particles from spreading into unaffected parts of the structure while work is underway, since a Category 3 loss that is not contained in the first few minutes becomes much harder to control later.

Extraction of the contaminated water comes first, followed by removal of porous material that absorbed it — carpet, pad, drywall, insulation — since those materials generally can't be safely cleaned once sewage has soaked in. Removed material is bagged and disposed of according to standard biohazard handling practices rather than treated as ordinary construction debris.

Every surface the contamination touched gets disinfected, and the space is dried and monitored with the same moisture-meter discipline as any water loss, since a Category 3 job that dries incompletely just trades one contamination problem for a mold problem. Documentation — what was affected, what was removed, and what was disinfected — runs alongside the physical work the whole way through.

Disinfection You Can Verify, Not Just Smell

Category 3 water carries a specific IICRC protocol, and disinfection is judged by more than a surface that looks clean. We use EPA-registered disinfectants matched to the contamination level, applied to every surface the water reached, not just the areas that look visibly affected — sewage travels further than it appears to, wicking into materials past the waterline you can see.

Air quality gets addressed alongside surfaces. HEPA air scrubbing runs throughout the containment area to manage airborne particles during removal and disinfection, and deodorization follows the same logic we apply to any odor problem: the smell is almost always a symptom of remaining contamination or moisture, so eliminating the source is what actually gets rid of it, rather than covering it with a stronger scent.

Before we close out a job, we confirm affected materials have dried to a verified level with moisture meters and that no lingering odor points to contamination we missed. If either check comes back wrong, we go back into that area and correct it rather than sign off on a space that only looks finished on the surface.

Sewage Risk in a Coastal, Storm-Driven Region

Sewage backups spike here for a reason that has nothing to do with anyone's plumbing: heavy rain and storm surge during hurricane season, June through November, can push more flow into the sewer system than lift stations and low-lying infrastructure are built to handle, forcing backups into homes and businesses that did nothing wrong. Crawl-space foundations add another layer, since supply and drain lines running underneath a home can back up or fail out of sight.

Condos and multi-unit buildings along the coast often share sewer lines and lift stations across several units, so a single blockage or storm surcharge event can affect more than one property at once — which sometimes means coordinating with an HOA or property manager in addition to the individual unit. Vacation rentals and second homes that sit empty between guests carry their own risk, since a slow backup can go unnoticed for days in a property nobody's currently using.

Because storm-driven backups and everyday plumbing failures get the same response from us either way, we don't spend time sorting out blame before starting containment and extraction — the priority is getting a biohazard situation contained and the property back to a sanitary condition as quickly as possible.

Cost & Timeline

Timeline: 2–5 days for cleanup; any rebuild is handled by your own contractor after clearance. See the full Sewage Cleanup cost guide →

Frequently Asked Questions

It is genuinely dangerous. Raw sewage is classified as Category 3 "black water" and can carry E. coli, hepatitis, parasites, and other pathogens. We strongly recommend keeping people and pets out of the affected area and calling a certified professional. Porous materials that absorb sewage usually cannot be safely cleaned and must be removed, and proper disinfection requires the right equipment and protective gear.
If it is safe, stop using water that drains into the affected line (toilets, sinks, washing machine) so you do not add to the backup. Keep everyone away from the contaminated area, shut off electricity to that zone if you can do so safely, and avoid tracking the water into clean parts of the home. Do not run your home's ventilation system if it may circulate contaminated air. Then call us at any hour and we will guide you through the next steps.
It depends on your policy. Many standard homeowners policies exclude sewer and drain backups unless you carry a specific backup-of-sewer-or-drain endorsement, while sudden internal failures may be covered differently than flooding from outside. We document the source and extent of the loss thoroughly and coordinate directly with your carrier so the claim is supported. We always recommend confirming your specific coverage with your agent.
Containment, water extraction, removal of contaminated materials, and disinfection are often completed within one to three days for a typical residential loss. Structural drying usually adds another two to four days depending on saturation and humidity, which can run higher in our coastal climate. Any reconstruction, such as new flooring or drywall, is a separate phase scheduled after the structure is dry and verified sanitary.
Yes. Odor is a sign of remaining contamination or moisture, so eliminating it is part of doing the job correctly. After removing affected materials and disinfecting surfaces, we use HEPA air scrubbers and professional deodorization to neutralize odors at the source rather than mask them. If an odor lingers, it usually means moisture or contamination remains, which we identify and address before completing the work.
A sewage loss is a biohazard event, so it requires more containment, personal protective equipment, EPA-registered disinfectants, regulated disposal of contaminated materials, and more thorough sanitization than a clean-water loss of the same size. Porous materials that might be dried and saved after a clean leak typically have to be removed and replaced after sewage contact, which adds removal, disposal, and reconstruction costs.
Full personal protective equipment for a Category 3 job typically means waterproof suits, gloves, boot covers, and respiratory protection appropriate to the contamination level, plus decontamination procedures before anyone leaves the containment area. It's not optional gear — raw sewage carries pathogens that make casual contact a real health risk, which is exactly why we ask homeowners and employees to stay out of the affected area until it's been cleared.
Yes. Heavy rain and storm surge can push more water into the sewer system than lift stations and pump systems are built to handle, forcing sewage back up through drains and toilets in homes that did nothing wrong. This is common along the Grand Strand during tropical downpours and surcharge events. The response is the same either way — contain, extract, remove affected material, and disinfect — regardless of whether the cause was inside the house or in the municipal system.
Contaminated porous material — carpet, pad, drywall, insulation — is bagged and disposed of according to standard health and safety guidelines for biohazard waste, not put out with regular household trash. We document what's removed as part of the loss record. Non-porous debris and packaging follow normal disposal procedures once they've been properly cleaned and are no longer a contamination risk.
An ejector pump is the residential version of the same idea — it lifts wastewater from a bathroom, laundry, or utility space that sits below the level of the main sewer line, since gravity can't do the job from down there. If your ejector pump fails — a power outage or a worn motor is usually enough — wastewater backs up at your lowest fixtures even though the municipal system is fine. A lift-station failure, by contrast, can back up several homes at once.

Sewage Cleanup Near You

We provide sewage cleanup 24/7 across the Grand Strand. See all the communities we serve →

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