⚠️ Sewage is a Category 3 biohazard — do not attempt cleanup yourself. Call (602) 228-9494 now.
Sewage Backup Is Not a Plumbing Problem.
It's a Biohazard.
The IICRC S500 standard classifies sewage as Category 3 — grossly contaminated water containing fecal bacteria, pathogens, and biological hazards. Once sewage contacts porous building materials (drywall, insulation, subfloor), those materials cannot be dried and retained. They must be removed.
DRR follows IICRC protocol exactly — because the alternative is leaving a biohazard inside your walls. Every sewage loss is fully documented for your insurance carrier from the moment we arrive.
Cat 3 Protocol
Our Sewage Remediation Process
Emergency dispatch — 24/7
Sewage events cannot wait until morning. Crews are available around the clock with Cat 3 extraction equipment and full PPE.
Source identification & containment
We identify the source — sewer line backup, main-line blockage, septic failure — and confirm the plumber has stopped the flow before remediation begins.
Category 3 extraction
All sewage-contaminated water is extracted using enclosed-tank truck-mount systems. No open-air extraction that could aerosolize biological hazards.
Contaminated material removal
Per IICRC S500, all porous materials that contacted Cat 3 water — drywall, insulation, flooring, carpet, subflooring — are removed and disposed of properly. No exceptions.
Anti-microbial treatment & drying
EPA-registered antimicrobials are applied to all affected structural materials. Structural drying begins immediately and continues until clearance moisture readings are achieved.
Documentation & clearance
Complete drying logs, photo documentation, and a final clearance survey for your insurance carrier. Every reading documented, every decision defensible.
IICRC-Certified Category 3 Remediation
IICRC S500 Cat 3 Protocol
Correct PPE, correct material removal
24/7 Emergency Response
No waiting until Monday morning
Full Insurance Documentation
Adjuster-ready drying logs
Antimicrobial Treatment
EPA-registered, structure-safe
FAQ
Sewage backup cleanup Phoenix — FAQ
Is sewage backup covered by homeowners insurance?
Standard HO-3 homeowners policies do NOT automatically cover sewage backup — it is typically excluded from base coverage. However, many carriers offer a 'water backup and sump overflow' endorsement (rider) that specifically covers sewer and drain backup. Check your declarations page for this endorsement. DRR documents losses to IICRC standards so your claim is defensible regardless of which endorsement applies.
Why is sewage backup classified as Category 3 water damage?
The IICRC S500 standard classifies water by contamination level. Category 3 — 'black water' — is grossly contaminated water that poses a significant health hazard. Sewage contains fecal bacteria (E. coli, Salmonella), hepatitis A, and other pathogens. All porous materials that contact Cat 3 water must be removed — there is no safe way to dry and keep saturated drywall, insulation, or carpet that has been in contact with sewage.
How fast does sewage damage become a biohazard?
Immediately. Sewage is a biohazard from the moment it enters the structure. Beyond the initial contamination, bacteria multiply rapidly in Phoenix's warm temperatures — within hours, microbial colonies can establish in walls and subfloor assemblies. There is no safe 'wait and see' window for sewage losses. Call DRR the moment you discover the backup.
Do I need to call a plumber or a restoration company first?
Both — but coordinate carefully. The plumber must stop the source first. DRR cannot begin remediation while sewage is still actively entering. Call your plumber and call DRR simultaneously so we can stage equipment while the plumber resolves the blockage. Do not attempt to clean up sewage yourself — improper handling spreads contamination and creates health risk.
Can sewage-soaked flooring and drywall be saved?
No. Per IICRC S500 Category 3 protocol, all porous materials that contacted sewage water — carpet, pad, drywall, insulation — must be removed. This is not negotiable and not a cost-cutting measure. Attempting to dry porous materials that absorbed sewage leaves biological contamination inside the wall assembly. Tile and sealed concrete can sometimes be cleaned and retained after proper antimicrobial treatment.
How long does sewage cleanup take?
Extraction and material removal typically takes 1–2 days. Structural drying after material removal takes 3–5 additional days. Total project timeline from event to ready-for-reconstruction: 5–8 days for a typical residential bathroom backup. Larger losses or delayed response will take longer.
Is mold a risk after a sewage backup?
Yes — and it develops faster than after a clean-water loss. Sewage introduces organic matter that accelerates mold colonization. DRR's antimicrobial treatment and rapid structural drying significantly reduce mold risk. If remediation was delayed more than 48 hours, we recommend a post-clearance mold assessment before reconstruction.
What PPE is required for sewage cleanup?
IICRC S500 Category 3 protocol requires Tyvek suits, N95 or better respirators, chemical-resistant gloves, and eye protection at minimum. For confined-space sewage work, supplied-air respirators may be required. This is why DIY sewage cleanup is dangerous — the protective equipment requirements exist because the pathogens are real and serious.
Sewage backup in your home?
Don't touch it. Call us.
Sewage is a biohazard. Every minute of exposure increases health risk and contamination depth. DRR deploys certified Cat 3 crews across Maricopa County — 24 hours a day.