24/7 Sewage Backup Cleanup
A sewage backup is not a normal water loss. Our water extraction removes sewage, and our mitigation process addresses what the sewage touched.
- IICRC-Certified Water Damage Specialists
- Advanced Moisture Evaluation & Structural Drying
- Direct Insurance Claims Assistance
- 28+ Years of Water Damage Experience
Because MSI has specialized in mold inspection and remediation since 1998, we don’t guess when your building is dry. We measure it.
Contact Our Certified Experts
Trust Our 5-Star Rating







In a time when it can be hard to get service providers to even call you back, MSI is a real standout. No one wants to deal with water damage or mold, but knowing this team is out there doing high‑quality, reliable work has been a game changer for us as homeowners.








They were able to start the remediation within a week of contacting them, which gave us huge peace of mind. The team was professional, respectful of our home, and explained what they were doing each step of the way. Knowing our baby’s health and safety were a priority to them made such a difference.
Should we need further remediation, we will definitely continue using them. I’m so grateful we found MSI and would recommend them to anyone who needs mold remediation.
Sewage Backup Cleanup: Remove the Contamination, Not Just the Water
A sewage backup is not a normal water loss. Treat it like one, and you put your property and your health at risk.
When contaminated water floods a basement, bathroom, utility room, or commercial space, the goal is never just to suck it up and dry the floor. The affected area has to be evaluated for contamination, porous materials, hidden moisture, and the very real chance that contaminants have already spread beyond the visible backup.
Mold Solutions & Inspections (MSI) treats sewage backup cleanup as a contamination-control project first, and a drying project second.
Our IICRC-certified technicians pinpoint affected areas, remove contaminated water and materials when needed, clean affected surfaces, establish controlled drying conditions, and verify moisture levels before we ever call the job done.
Extraction removes the sewage. Proper mitigation addresses everything the sewage touched.
Sewage Backed Up? Stay Out of the Affected Area.
Sewage-contaminated water is commonly classified as Category 3 water, meaning it can carry harmful contaminants and demands professional handling. Act fast, but act safely.
Keep People and Pets Away
01
Avoid direct contact with contaminated water and any materials it touched. Keep children and pets well clear of the affected area.
Don't Use Household Fans
02
Uncontrolled airflow can spread contamination from the affected area into clean parts of your property. Leave the fans off.
Don't Try to Save Porous Materials on Your Own
03
Carpet, padding, drywall, and insulation soak up contaminated water fast. Don’t attempt to rescue them without a professional evaluation.
Stop Using Plumbing if the Backup Is Active
04
Every flush, sink, shower, or running appliance can make a sewer or drain backup worse. Stop using your plumbing until the source is resolved.
Call MSI
05
We’ll evaluate the affected area and start professional sewage backup cleanup fast, before contamination spreads further.
The MSI Difference: Contamination Changes Everything
A burst pipe and a sewage backup can both leave water on your floor. But they are worlds apart as restoration problems.
With sewage, the questions get serious:
- What did the contaminated water touch?
- Which porous materials absorbed it?
- Could contamination have spread past the visible waterline?
- What must be removed instead of dried?
- What needs professional cleaning?
- Is contaminated moisture still trapped in surrounding materials?
That’s why MSI never treats sewage cleanup as ordinary water extraction. Our strategy follows the contamination, not just the puddle.
Our Sewage Backup Cleanup Process
Assess the Source and Affected Area
First, we determine the nature and extent of the sewage event. Common causes include:
- Main sewer backups
- Floor drain backups
- Toilet overflows involving contaminated water
- Septic system failures
- Drain-line backups
- Sewage entering through basement plumbing
- Municipal sewer problems
MSI traces where the water traveled and identifies every material it contacted.
Establish Contamination Control
When contaminated water is present, controlling the affected area is critical. Depending on the conditions, we isolate or contain the work zone to stop contamination from reaching clean areas.
This is exactly where DIY cleanup goes wrong. Move contaminated air, water, or materials through your property, and you make the affected area bigger.
Remove Sewage and Standing Water
Our commercial extraction equipment removes contaminated water where appropriate. But extraction is only the first physical step. The bigger question is what the sewage contacted before we pulled it out.
Identify Materials That Cannot Be Retained
Porous materials absorb contaminated water fast. Depending on the loss, affected materials may include:
- Carpet
- Carpet padding
- Drywall
- Insulation
- Upholstered materials
- Certain flooring materials
- Baseboards
- Other porous finishes
Whether a material can stay depends on the source, the level of contamination, the degree of exposure, and whether it can be properly cleaned and restored.
Sewage cleanup isn’t about saving everything. It’s about making safe, defensible material decisions.
Clean Affected Surfaces
Once contaminated water and non-restorable materials are gone, we clean the remaining affected surfaces using procedures matched to the conditions. Professional sewage protocols emphasize cleaning and disinfection, not just drying contaminated areas.
Investigate Hidden Moisture
Sewage travels under flooring, behind baseboards, and into wall cavities, just like any other water loss. This is where our moisture-focused approach becomes essential.
We evaluate surrounding materials to determine whether contaminated moisture migrated beyond the visible area. If the surface looks clean but contaminated moisture lingers behind it, the job isn’t finished.
Establish Structural Drying
After appropriate removal and cleaning, MSI sets up controlled drying conditions for materials that can stay. We position professional air movers and dehumidification equipment based on the conditions of your project, with one goal: pull the remaining excess moisture out of the structure.
Monitor and Verify Drying
MSI never stops just because the floor feels dry. We take moisture and atmospheric readings to confirm real progress and answer:
- Are the remaining materials actually drying?
- Is moisture trapped in a concealed area?
- Does the drying strategy need adjusting?
- Have proper drying goals been reached?
Clean isn’t enough if the structure is still wet.
What Happens to Carpet After a Sewage Backup?
Carpet and padding are highly porous. When contaminated sewage saturates them, extraction or shampooing usually isn’t a safe restoration strategy.
The exact response depends on the nature and extent of contamination, but contaminated porous materials frequently have to be removed. MSI evaluates the real conditions before deciding how the affected flooring should be handled.
What About Drywall?
Drywall wicks contaminated water above the visible flood line, which means the part that looks dry may still be affected.
Depending on contamination and saturation, selective removal may be necessary to:
- Remove contaminated porous material
- Access concealed wall cavities
- Evaluate insulation
- Clean structural surfaces
- Dry the remaining framing
The visible waterline doesn’t show you where contamination stopped.
Sewage Backup in a Basement
Basements are especially vulnerable because sewer lines, floor drains, and below-grade plumbing tend to converge there. A basement sewage backup can affect:
- Finished walls
- Flooring
- Insulation
- Stored contents
- Framing
- Mechanical areas
- Adjacent rooms
In a finished basement, contamination can spread beneath flooring and behind wall assemblies. MSI evaluates far more than the open floor. We investigate the full path of the contaminated water.
Sewage Backup in a Bathroom
A toilet overflow can range from a minor clean-water incident to a serious contaminated sewage loss, depending on what entered the water and where the backup started.
When contaminated water spreads beyond the fixture, it can reach:
- Flooring
- Baseboards
- Drywall
- Vanities
- Adjacent rooms
- Subflooring
MSI evaluates the actual conditions rather than assuming every toilet overflow is the same.
Sewer Backup vs. Clean-Water Loss
A broken supply line often starts as relatively clean water. A sewer backup can introduce pathogens and other contaminants. That single difference changes:
- Personal protective requirements
- Containment
- Cleaning methods
- Material-removal decisions
- Equipment handling
- Drying strategy
Same building. Same amount of water. Completely different mitigation problem.
Why MSI's Mold Expertise Matters After Sewage Damage
MSI brings specialized expertise in both water damage and mold inspection and remediation, and that combination is powerful after a sewage loss. Moisture can remain in concealed materials long after the contaminated water is gone.
We’re already trained to think about:
- Where moisture hides
- How wet materials behave
- What happens when moisture lingers
- When additional investigation is warranted
So our sewage-cleanup process doesn’t end when the visible contamination disappears. We verify the moisture conditions that remain behind.
Can I Clean Up Sewage Myself?
A very small, limited incident might look manageable, but sewage carries contamination risks a mop can’t handle. Professional help becomes essential when:
- Sewage covers a significant area
- Carpet or drywall is affected
- Water entered wall cavities
- The backup hit a finished basement
- The source is unknown
- Sewage sat for an extended period
- Multiple rooms are affected
- Occupants include vulnerable individuals
- You can't confidently isolate the area
When in doubt, stay out of the water and get professional guidance.
Sewage Backup Cleanup & Insurance
Coverage varies significantly by policy. Standard property insurance often treats sewer and drain backups differently from other water losses, and a specific backup endorsement may be required.
MSI provides the applicable project documentation, including:
- Photographs
- Affected-area records
- Moisture readings
- Material-removal information
- Drying documentation
- Work performed
MSI documents the mitigation. Your insurance carrier determines coverage. And don’t wait on your insurer to start cleanup, acting fast limits contamination and protects both your property and your claim.
Sewage Backup Cleanup FAQs
Is sewage backup considered Category 3 water?
Sewage-contaminated water is commonly classified as Category 3 because it can contain harmful contaminants.
Should I stay out of a sewage-contaminated area?
Absolutely. Avoid direct contact with contaminated water and any affected materials.
Can sewage-contaminated carpet be cleaned?
Because carpet and padding are highly porous, contaminated materials often require removal rather than cleaning, depending on the circumstances.
Does drywall need to be removed?
Sometimes. The decision depends on the extent of contamination, saturation, and whether the material can be properly restored.
Can sewage travel behind walls?
Yes. Like any water loss, contaminated water migrates into concealed building materials and cavities.
Is extraction enough?
No. Proper sewage backup cleanup may also require material removal, cleaning, contamination control, structural drying, and moisture verification.
How long does sewage cleanup take?
There’s no universal timeline. The extent of contamination, affected materials, removal requirements, and drying conditions all shape the duration.
Can sewage damage lead to mold?
Yes. Lingering excess moisture creates conditions favorable to microbial growth. Proper cleanup and verified drying address the moisture side of the loss.
Does MSI handle mold if it's discovered?
Yes. MSI provides full mold inspection and remediation alongside water-damage mitigation.
The Sewage Is Gone. But Is the Area Clean and Dry?
A professional sewage backup cleanup shouldn’t end when the standing water disappears. It should address:
That’s the MSI approach:
Remove what can't safely stay. Clean what can. Dry what remains. Verify the results.
- Mold Solutions & Inspections (MSI)
- 24/7 Emergency Sewage Backup Response
- IICRC-Certified Technicians
- 27+ Years of Experience | 9,000+ Projects
- Serving Pennsylvania, New Jersey & Delaware
Sewage Backup?
Every hour contaminated water sits in your property, it spreads deeper into your floors, walls, and materials. Don’t give it the chance.
Keep clear of the affected area and call MSI now.