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Category 3 Water Cleanup in Nashville

Black water from sewage, rising floodwater or long-standing leaks is grossly contaminated. We handle it with the removal, disinfection and drying steps it requires.

  • IICRC S500-based
  • Sewage & floodwater
  • Moisture documentation
  • Homes & businesses

What is Category 3 water?

Category 3 water, often called black water, is grossly contaminated water that can contain pathogens or toxic substances. The IICRC S500 standard includes sewage, rising water from rivers or streams, and water that has sat long enough for microbial growth. Cleanup requires removing affected porous materials, disinfecting surfaces and drying the structure.

Cat 3Black water
S500Based process
LoggedMoisture
Category 3 Black Water Cleanup

Not all water damage is the same

Water damage is grouped by contamination level. Category 1 is clean water, such as a broken supply line. Category 2 carries some contamination, such as washing machine discharge. Category 3 is grossly contaminated, and it calls for a very different response.

Clean water can also become Category 3 if it sits long enough. That is why fast action matters. We assess the source and time, remove what cannot be saved, and restore the structure to a clean, dry condition.

When to call

Common Category 3 sources

  • Sewage backups and overflows
  • Floodwater from creeks or rivers
  • Toilet overflows with waste
  • Water that sat for days
  • Crawlspace sewage leaks
  • Storm water entering lower levels
Why it matters

Why Category 3 water is dangerous

Contamination spreads wherever the water goes.

RISK 01

Pathogens

Bacteria, viruses and parasites can be present.

RISK 02

Chemical contamination

Floodwater can carry fuel, pesticides and chemicals.

RISK 03

Hidden moisture

Water migrates into walls, floors and cavities.

RISK 04

Mold

Wet organic materials can grow mold quickly.

Our process

Our Category 3 process

Following the IICRC S500 approach.

Step 1 of 6

Assessment

We identify the water source, category and extent of damage.

Step 2 of 6

Safety and containment

We address electrical hazards and set up containment.

Step 3 of 6

Extraction and removal

Water is extracted and contaminated porous materials are removed.

  • Carpet and pad
  • Drywall and insulation
  • Upholstered items
Step 4 of 6

Cleaning

Structural surfaces are cleaned and disinfected.

Step 5 of 6

Drying

Commercial equipment dries the structure to target levels.

Step 6 of 6

Verification

Moisture readings confirm the structure is dry, and records are provided.

What we treat

What we treat

Basements
Crawlspaces
First floors
Garages
Drywall & framing
Subfloors
Commercial spaces
Storage areas
Who we help

Homes, rentals and businesses across Middle Tennessee

Homeowners & families

Homeowners get safe restoration after sewage or flooding.

Unattended death · Odor removal

Landlords & property managers

Landlords get units restored with records for insurance.

Property management · Rental cleanouts

Businesses & facilities

Commercial properties get fast response and documentation.

Commercial sewage · Disinfection · Sewage odor

In depth

Category 3 water cleanup in Nashville

Nashville and the surrounding counties sit along the Cumberland River and many creeks and tributaries. Heavy rain can send floodwater into low-lying homes and businesses, and floodwater is treated as Category 3.

Our team handles sewage backups, toilet overflows and floodwater with the same careful approach.

We provide detailed documentation, including moisture logs and photos, so your insurer or adjuster has a clear record.

Why Nashville 24/7 Biohazard Management

Discreet, documented, done right the first time

24/7 local response

A Nashville-based crew answers day or night, including weekends and holidays, and can usually be on site the same day.

Unmarked vehicles

No logos, no sirens, no attention. Neighbors, tenants and guests do not need to know why we are there.

Full PPE & safety protocols

Technicians follow OSHA bloodborne pathogen and hazard communication standards on every job.

Licensed waste transport

We are licensed to transport regulated medical waste, so contaminated materials are removed and disposed of properly.

Insurance-friendly

Photo documentation and itemized scopes help with claims. See how insurance coverage works.

Clear pricing

You get a written scope before work begins. Learn what drives cleanup cost.

FAQ

Category 3 Black Water Cleanup questions

Straight answers to what people ask us most. More in our biohazard cleanup FAQ.

Talk to a technician
What is black water?

Another name for Category 3 water: grossly contaminated water such as sewage or floodwater.

Can clean water become Category 3?

Yes. Water that sits long enough can support microbial growth.

Can carpet be cleaned after Category 3 water?

Pad must be removed, and carpet is generally not restored.

Is drywall saved?

Drywall that absorbed Category 3 water is usually cut out and removed.

Do you handle flood damage?

Yes, including cleanup and drying after floodwater.

Is flood covered by insurance?

Flood usually requires a separate flood policy. Check your coverage.

Available now

Need category 3 black water cleanup today?

Call any time, day or night. We will walk you through what to do right now, give you a clear plan, and get a crew moving.

Call 24/7: (615) 513-5112