Free visual inspection and a written scope of work before any mitigation begins - photos, moisture readings, and drying logs go in your claim file
The scope we write is the scope we bill. Anything new gets shown to you, in writing, before we touch it.
Trusted Sewage Cleanup for New York City Homeowners
Sewage cleanup in New York City typically costs $2,800 to $9,500 depending on how far the water traveled, what it saturated, and whether structural drying is required. A backed-up line in a single bathroom is a different job than a main-line failure that sends Category 3 water across a finished basement in Queens. DryMark Restoration responds to sewage backups across all five boroughs with a written price before any work begins, not after a crew is already inside. Call (629) 213-4606 and a live person answers, 24 hours a day. We’ve restored homes throughout New York City since 2011, and every job includes a documented photo record, room-by-room moisture readings, and a signed 365-Day Done Right Promise under The Haven Standard.
What Our Sewage Cleanup Service Includes
Every sewage job starts the same way: we identify the source, classify the water, and write down what we found before we touch anything. Sewage is Category 3 water under the IICRC S500 standard, which means it contains pathogens, bacteria, and solids that require containment and disposal, not just drying. The scope below covers what our crews actually do, in the order they do it.
Sewage Backup Cleanup
A sewage backup happens when the municipal line or your lateral pipe can’t move waste away from the house, so it comes back through floor drains, toilets, or tubs. In New York City, older combined sewer systems in neighborhoods like The Bronx and parts of Brooklyn can become overwhelmed during heavy rain, pushing sewage back into basements that sit below street grade. DryMark Restoration responds to full backup events by extracting the standing water, removing contaminated materials, and running professional-grade air movers and dehumidifiers from XPOWER and B-Air until moisture readings return to dry standard.

Toilet Overflow Cleanup
A toilet overflow that spills a few gallons of clean water is different from one that spreads waste across a bathroom floor and into the hallway. The moment solids are present, the cleanup falls under Category 3 protocols: the affected area gets contained, porous materials like carpet pad and baseboard are cut and removed, and hard surfaces are cleaned with an EPA-registered antimicrobial. We document the affected square footage in the written scope, so you’re not paying for demolition that exceeds the actual damage line.

Septic Failure Cleanup
Homes in outer Queens, parts of Staten Island, and sections of the Bronx still run on septic systems, and a failing drain field shows up as soggy soil, slow drains, and sewage odor inside the house. A septic failure usually means the tank is full, the drain field is saturated, or roots have invaded the outlet line. DryMark Restoration handles the interior side of septic failures: we extract the effluent that has backed up into the home, remove saturated drywall and flooring, then install drying equipment and document daily moisture readings until the structure is dry.

Black Water Extraction
Black water is the industry term for sewage, floodwater from rivers, and any water that has been standing long enough to grow bacteria. Extraction is the first physical step in any sewage job, using truck-mounted or portable extractors rated for solids and sludge, not just clear water. Our technicians record the gallons pulled, the affected room dimensions, and the material composition of what was wet, because those three numbers are what an insurance adjuster needs to approve a claim without a dispute.

Sanitization & Disinfection
After extraction and demolition, every surface that will remain in the home gets cleaned, then sanitized with an EPA-registered antimicrobial applied to the labeled dwell time. We don’t fog a room and call it done. We wipe, mop, and scrub surfaces, then log what product was used, at what concentration, and on which surfaces. That log is part of the photo record you receive at the end of the job, and it’s what separates a documented restoration from a mop-and-bucket cleanup.

Crawl Space Sewage Removal
A sewage line running under a crawl space can leak for weeks before anyone notices, saturating the dirt floor, the floor joists, and any insulation in the cavity. Crawl space sewage removal is physically demanding work done in a confined space, and it requires full PPE including respirators and impermeable suits. DryMark Restoration removes the contaminated soil, bags and disposes of saturated insulation, and treats the remaining structure with an antimicrobial before setting drying equipment. If the crawl space is never dried properly, that moisture migrates up into the living space through vapor pressure differential, which means the sewage smell comes back even after the visible mess is gone.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service for Sewage Cleanup

DryMark Restoration runs XPOWER professional air movers and B-Air dehumidifiers on sewage jobs across New York City, and our drying logs are written to IICRC S500 standards so adjusters can verify the equipment was sized and placed correctly. We’ve run thousands of drying cycles with XPOWER units in basement and crawl space applications, where their low-clearance footprint works well in the tight mechanical rooms common in older Brooklyn brownstones and Manhattan townhouses. B-Air low-grain refrigerant dehumidifiers are our standard for enclosed spaces like bathrooms and under-stair closets after a toilet overflow, because they pull water vapor down to a dry standard that stops microbial growth.
We also deploy Injectidry systems when sewage has wicked into wall cavities behind tile, which is common in prewar buildings where plaster sits directly on masonry. Injectidry forces dry air into enclosed cavities without opening the wall, and our technicians record the input and output conditions daily. But the equipment matters less than the documentation. Whether your home has a sewage ejector pump, a gravity lateral, or a septic tank, our process is the same: written scope, photo record, daily moisture log, signed warranty. We don’t service specific brands of plumbing fixtures; we restore the structure after the plumbing has failed, but we coordinate with your plumber so the extraction and the repair happen in the right sequence.
Before
AfterSigns You Need Sewage Cleanup Right Now
- Multiple drains are backing up at the same time. If the toilet gurgles when the washing machine drains, or the tub backs up when you flush, the blockage is likely in the main line, not the fixture. That’s the warning sign that a larger backup is coming, and the next event may bring sewage up through the lowest drain in the house.
- You smell sewage inside the home, not just near a drain. Sewer gas has a distinct smell, and if it’s present in living areas rather than a single bathroom, the leak or backup is already active behind a wall or under a floor. Sewer gas also contains hydrogen sulfide, which is not something to live with while you wait to see if it gets worse.
- Water is standing in a basement or crawl space with visible solids. Clear water in a basement is a water damage issue. Brown or gray water with visible debris is sewage, and every hour it sits, it’s wicking up drywall, soaking carpet pad, and moving into materials that will need to be removed. Call, and we’ll have a crew dispatched while the water is still where you found it.
- Your toilet overflowed past the bathroom floor. A few cups of clean water from a clogged bowl is a mop-up job. Waste water that crossed the tile, reached a wood or carpeted floor, or seeped into the subfloor is a sewage cleanup job. Don’t guess which one you have. We’ll come out, classify the water, and give you a written answer.
- A drain backed up, you cleaned what you could see, and the smell returned within days. That smell is evidence of moisture and organic material in a cavity you couldn’t reach. The visible floor can be dry while the space under the tile is still wet, and that’s where mold starts. The fix is not another round of bleach; it’s extraction, drying, and a moisture reading that proves the cavity is dry.
Our Sewage Cleanup Process - Step by Step

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Initial assessment and written scope. A named technician arrives, identifies the source and classifies the water, takes moisture readings of the affected materials, and photographs everything. Before any work starts, you receive a written scope with a price. That’s Haven Standard, Clause 1, and it applies on every job, including sewage.
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Containment and safety. Sewage work requires containment to stop contaminated dust and aerosol from moving into clean rooms. We set up plastic barriers, run negative air where needed, and our technicians work in full PPE: respirators, gloves, impermeable suits, and boot covers. Furniture in unaffected areas gets moved or covered.
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Extraction and controlled demolition. We extract standing sewage, remove saturated porous materials like carpet, pad, drywall, and insulation, and bag all contaminated debris for disposal. We cut to the moisture line, not just the visible stain line, so the materials left behind are dry and viable for drying or already sound.
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Drying, sanitizing, and documentation. We set professional drying equipment sized to the affected cubic footage, apply an EPA-registered antimicrobial to remaining surfaces, and take daily moisture readings. You receive a drying log with dates, readings, and equipment placement, which is the documentation your insurer uses to process the claim.
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Final verification and signed warranty. When readings return to dry standard, we do a final walkthrough with you, review the photo record, and leave the 365-Day Done Right Promise in writing. If something isn’t right within the year, we come back and make it right. That’s Haven Standard, Clause 3.
How Much Does Sewage Cleanup Cost in New York City?
A toilet overflow contained to one bathroom in New York City typically runs $2,800 to $4,200, including extraction, disposal, sanitizing, and drying. A main-line backup that crosses a finished basement in Brooklyn or Queens usually falls between $5,500 and $9,500, because the scope includes controlled demolition, flooring removal, and multiple days of drying equipment. A crawl space sewage removal on Staten Island or in The Bronx can reach $7,000 to $11,000 depending on square footage and depth of the contamination. These are ranges, not quotes. Your written price depends on the affected square footage, how many rooms were impacted, what materials absorbed the sewage, whether structural cavities need injection drying, and how long the water sat before we arrived.
Here’s what to check on any estimate you receive: does it specify the affected square footage, or just “area”; does it list the equipment type and number of days; does it identify what gets removed and what gets cleaned in place. A one-page price with no scope is a price, not a plan. We will review any competitor’s written estimate at no charge, and we’ll give you our own written scope alongside it. That’s a Free Second Opinion, and it doesn’t obligate you to hire us.
Sewage Cleanup Near New York City - Our Service Area

DryMark Restoration services all five boroughs including Manhattan, Brooklyn, Queens, The Bronx, and Staten Island, plus nearby New York markets. Typical response time within city limits is 60 to 90 minutes for sewage emergencies, depending on traffic and bridge crossings. We also operate in Los Angeles and Chicago, where the same written-scope-before-work standard applies. If you’re reading this from another market, see our Sewage Cleanup in Los Angeles and Sewage Cleanup in Chicago pages.
Serving New York City, NY - Our Local Coverage Area
We’re based in the New York City area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Sewage Cleanup in New York City

Sewage cleanup is the process of extracting Category 3 water, removing contaminated materials, sanitizing remaining surfaces, and drying the structure back to a dry standard. It is not janitorial cleaning, and it requires containment, PPE, and disposal protocols that differ from clean water damage. DryMark Restoration documents every step so you and your insurer both have a record of what was done.
Most sewage cleanup jobs in New York City take 3 to 5 days from first response to final drying verification, depending on how many rooms were affected and what materials absorbed the sewage. Extraction and demolition usually happen on day one, with drying equipment running for 2 to 4 days after. We take daily moisture readings and stop when the readings are dry, not before.
Sewage cleanup in New York City typically runs $2,800 to $9,500 depending on the affected square footage, materials impacted, and whether structural cavities need injection drying. A contained bathroom overflow costs less than a main-line backup across a finished basement. Every job gets a written scope before work starts, so you know the price before any equipment is unloaded. Call (629) 213-4606 for a written estimate at no charge.
Homeowner’s insurance covers sewage backup only if you have a specific water backup endorsement on your policy, and the coverage details vary by carrier and policy year. What helps you either way is documentation: a written scope, a photo record, and daily moisture logs are the difference between a paid claim and a disputed one. DryMark Restoration documents every job to IICRC standards and coordinates directly with your adjuster if you need us to.
Yes. Sewage water is actively contaminating porous materials the entire time it sits, and the damage line moves further every hour. We answer live calls 24 hours a day, 7 days a week, and our crews can be in your home in New York City the same day you call. The faster extraction starts, the less material gets cut out and the smaller the final claim.
Every job comes with the 365-Day Done Right Promise in writing. If the cleanup or drying wasn’t done right, we come back and make it right, within one year, at no cost to you. That’s Haven Standard, Clause 3, and it’s signed on every job, not a verbal assurance.
Do not enter the affected area without shoes and gloves, and keep children and pets out entirely. Turn off the water supply to the fixture if you can do so without stepping into the sewage. Do not run the HVAC system if it could spread contaminated air, and do not attempt to remove sewage yourself if there is any risk of electrical contact. We will handle the rest, including access, containment, and disposal.
Schedule Your Sewage Cleanup Service in New York City Today
Sewage damage in New York City does not wait, and neither do we. Call (629) 213-4606 and a live person answers. We’ll dispatch a named technician, give you a written scope before work begins, and document every step until your home is dry. No obligation. No pressure. Just a written price and a documented record. That’s how DryMark Restoration works, and it’s how restoration should have worked all along. Visit our home page to learn more about the standard we hold every job to.
Written by Alicia Brennan, Owner at DryMark Restoration, serving New York City since 2011.






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