Sewage backup is a different problem from clean water damage, and it gets handled differently. The water carries pathogens. Materials that can be dried in a clean-water event have to be removed in a Category 3 event. The technicians on site need PPE that goes well beyond what a standard extraction job requires. And the disposal of contaminated materials follows specific protocols that protect your home and your neighborhood.
We respond to sewage backups, exterior flood water intrusion, and other Category 3 events around the clock throughout Mobile and Baldwin counties. This is not a job for a general handyman or a regular cleaning service — it requires specialized equipment, training, and procedures.
What Counts as Category 3 Water in Mobile
The IICRC defines water damage in three categories. Category 3 — black water — is the most contaminated and the most hazardous. In Mobile, common sources include:
Sewer line backups. Aging municipal sewer infrastructure in older parts of the city, root intrusion in historic neighborhoods, blockages from grease and debris — sewer mains back up, and when they do, the backflow comes up through the lowest fixtures in your home (typically a basement floor drain, ground-floor toilet, or shower drain).
Toilet overflows past the rim. Once contaminated water has been in contact with the toilet’s internal trap, it’s Category 3 regardless of how clean it looks.
Storm-pushed surface water. When a tropical system or major thunderstorm pushes water across the ground and into your home, that water has crossed sewers, lawns, streets, and stormwater systems. It’s Category 3 from the moment it enters.
Bay water surge. Tidal surge into Mobile Bay communities brings saltwater mixed with everything else the bay contains. Treated as Category 3 with additional saltwater corrosion considerations.
Flooding from Dog River, Three Mile Creek, or other waterways. Same logic — this is environmental water that has carried contaminants from across the watershed.
Long-standing water from any source. Even a clean-water leak becomes Category 2 within 48 hours and Category 3 within 72-96 hours in Mobile’s climate. Time degrades water quality fast here.
Our Category 3 Process
Initial containment. Before we start moving anything, we contain the affected area with plastic barriers and negative air pressure. This prevents contaminated air from spreading through the rest of the home.
Personal protective equipment. Tyvek suits, respirators, gloves, eye protection, boot covers. Standard for our crew on every Category 3 job.
Extraction and removal. Standing water is extracted with dedicated Category 3 equipment that doesn’t get used on clean-water jobs. Contaminated porous materials — drywall, insulation, carpet, pad, particleboard cabinetry, sometimes flooring substrate — are removed and bagged for disposal per Alabama and federal guidelines.
Cleaning and antimicrobial treatment. All affected non-porous surfaces are cleaned with EPA-registered antimicrobial agents. Multiple passes, with attention to seams, joints, and fastener penetrations where contamination can hide.
Structural drying. Once contamination is removed, the structure dries the same way as a clean-water job — but to a tighter standard, because any residual moisture in a previously contaminated area is a mold and pathogen risk.
Post-remediation verification. For significant Category 3 events, we recommend (and can coordinate) third-party testing to confirm the area is back to normal indoor levels before reconstruction begins.
Reconstruction coordination. New drywall, insulation, flooring, and finish work to restore the area. We perform this work or coordinate with general contractors as you prefer.
Why You Should Not Handle This Yourself
We say this not as a sales pitch but as a public health note: sewage backups and Category 3 water carry pathogens that cause real illness. E. coli, hepatitis A, salmonella, parasites. The visible water is only part of the problem — aerosolized contamination spreads through the home if the area isn’t properly contained. Mopping up doesn’t fix it. Bleach doesn’t fix it. The contaminated drywall and carpet have to come out.
If you’ve already started cleanup yourself and you’re now reading this with concerns, call us. We can assess what’s been done and what still needs to happen.
Insurance Coverage
Sewer backup coverage is a frequent gap in Mobile homeowners policies. Standard policies often exclude or limit sewer backup unless you’ve added a specific endorsement. Policies vary widely:
- Some include $5,000-$25,000 of sewer backup coverage as standard
- Some exclude it entirely without a paid endorsement
- Coverage limits often don’t reflect actual restoration costs for significant events
We can document for whatever coverage you have and we can give you a written estimate for the portion not covered. Most carriers covering homes in Mobile have specific Category 3 documentation requirements; we know what they need.
Call Now
(555) 555-5555 — 24/7 throughout Mobile County. Don’t try to clean this up yourself.