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.
Fast, Reliable Mold Remediation Across Passaic
Mold remediation in Passaic usually means one thing: water found its way into a basement or wall cavity and sat there long enough to grow. In Passaic, we see it after river surges near the Passaic River, after sewer laterals back up into finished basements, and in the tight, low-ceilinged spaces of the early-1900s two- and three-family homes that line streets like Monroe and Lafayette. Our crews know these houses. We know where the water travels, where the mold hides, and what it takes to get a cavity dry enough to close back up. If you smell something musty or saw water where it should not have been, call (940) 466-4354. We answer live, 24/7, and we’ll give you a written price before any work starts.
Key Takeaways
- Passaic mold problems are disproportionately tied to river backup and aging sewer laterals, not attic condensation like you see in inland towns.
- Typical mold remediation in Passaic runs $1,800 to $6,500 depending on square footage and water classification; simple visible-surface jobs start around $900.
- We write the price before we start. No surprises at the door, no add-on pressure once containment goes up.
- Every job includes the 365-Day Done Right Promise in writing. If it is not done right, we make it right.
- Call (940) 466-4354 any hour. A live person picks up, not a voicemail tree.
Why Wendell Water Damage Restoration Is Passaic’s Preferred Mold Remediation Company
Passaic homeowners call us because we treat mold the way the IICRC protocol demands: find the moisture source, contain the affected area, remove what cannot be dried, treat what remains, and prove the space is dry with actual moisture readings, not a sniff test. Our Mold Remediation team has walked through dozens of Passaic basements where a landlord dried the floor but never checked the wall cavity. That cavity is where mold comes back a month later.
Every technician who enters a Passaic home is background-checked and uniformed. You get a live arrival time you can track, like a rideshare, not a four-hour window. Before any work begins, you receive the price in writing and a digital invoice texted to your phone. The number on the screen is the number you pay. That is the Relay Visibility Guarantee, the standard every independent Wendell location operates under.
We are part of the Relay Home Co. family, founded in 2006. Blake Sorensen leads our team, and he holds every job to the same three commitments: written price before work starts, written guarantee on every repair, and a free second visit if the repair fails. That is not marketing language. That is what it says on every invoice.
Mold Remediation Services in Passaic
Mold Remediation Services in Passaic start with one question: where is the water coming from? In Passaic, the answer is usually a river backup, a sewer lateral failure, or a slow plumbing leak in a hundred-year-old wall. Once we answer that, the remediation itself follows a set sequence: moisture mapping, containment, removal of contaminated materials, antimicrobial treatment, structural drying, and post-remediation verification. A typical Passaic basement job with moderate contamination runs $1,800 to $4,200. A full basement gut-out with Category 3 water can reach $6,500 or more.
Moisture Mapping and Containment
We use moisture meters and thermal imaging to find every wet surface in the affected space before we touch anything. In Passaic’s older homes, water wicks up plaster walls and hides behind kitchen cabinets. We build containment with negative air pressure so spores do not spread to the upper units of a three-family while we work.

Antimicrobial Treatment and Structural Drying
After removing wet drywall and insulation, we treat framing and remaining surfaces with an antimicrobial product that stops fungal growth. Then we run professional drying equipment from Dri-Eaz and Phoenix, tracking daily moisture readings until the structure hits pre-loss condition. We never close a wall until the numbers prove it is dry.

What happens when you call
- 1
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.
Professional Mold Removal in Passaic
Professional Mold Removal in Passaic is not a spray-and-wipe job. It means removing the material that is holding moisture and harboring mold, then drying what remains. In Passaic’s tight east-side basements, those ceilings are low and the joists are close together. A fogger cannot reach the subfloor. Bleach wipes cannot change moisture readings. Our crews physically remove affected drywall, insulation, and flooring under containment, then dry the framing with Dri-Eaz and XPOWER air movers and dehumidifiers.
Black Mold and Category 3 Water
When Passaic’s storm drains back up into a ground-floor unit, the water is Category 3: contaminated with sewage. That changes the entire job. Materials that absorbed Category 3 water must be removed, not dried. We classify the water correctly before deciding what stays and what goes. Getting this wrong is how remediation fails.
Crawl Space and Subfloor Treatment
Many Passaic homes have shallow crawl spaces under the first floor. Water that pools there does not evaporate quickly in New Jersey humidity, and mold grows on the joists. We crawl in, remove contaminated soil or insulation, treat the framing, and seal the space with a vapor barrier if needed. The goal is dry, not just dry-looking.
Trusted Brands We Service in Passaic
Passaic homeowners sometimes ask if we can work on specific equipment or if we stock parts for their setup. We work with professional restoration brands across the board: Dri-Eaz dehumidifiers and air movers, Phoenix drying systems, XPOWER ventilation, and Injectidry for hard-to-reach cavities. We follow IICRC, RIA, and IFA standards on every job, which means the equipment gets used the way the manufacturer and the certifying bodies intend. If your Passaic basement has a specific drying challenge, like a finished ceiling over a wet joist bay, we bring the tool and the training to handle it.
Common Mold Remediation Problems We See in Passaic Homes
- Dried floors, wet walls. Landlords of Passaic’s older two- and three-family homes often dry the visible basement floor but skip the wall cavity where river-backup water wicked up into the plaster. Mold returns within a month because the cavity never dried.
- DIY foggers in low-ceiling basements. Foggers and bleach wipe-downs cannot reach the subfloor or joists in the tight basements common on Passaic’s east side. Moisture readings never actually drop, and the mold stays active behind the surface.
- Wrong water classification. Crews that treat a sewer backup as Category 1 water dry materials that should have been removed. Contaminated drywall stays in place, and the smell comes back. We classify water correctly before deciding what to dry and what to demo.
- Old tongue-and-groove subfloors. We took a mold call on a three-family on Monroe Street after a Second Street storm drain backed up into the ground-floor unit. Category 3 water sat under the original tongue-and-groove subfloor. Our tech ran moisture mapping and found 28% readings in the wall cavity behind the kitchen cabinets. We set containment, pulled the wet drywall, applied antimicrobial treatment, and ran Dri-Eaz drying equipment with daily logs until the cavity hit pre-loss condition, keeping the upper two units occupied throughout.
Pricing for Mold Remediation in Passaic, NJ
Mold remediation in Passaic typically runs between $1,800 and $6,500 for residential jobs. A small, contained bathroom or closet job starts around $900. A moderate basement with one or two affected walls falls in the $2,500 to $4,200 range. A full basement gut-out with Category 3 contamination and structural drying can reach $6,500 or more. What moves the number: square footage of affected material, water classification, whether subfloor or joists are involved, and how many units are affected in a multi-family. We put the full price in writing before any work starts. You approve the scope, we do the work, and the final number matches the written number. Call (940) 466-4354 for a free estimate. Blake Sorensen and our team will walk you through it on the phone in plain language.
We Also Serve Cities Near Passaic
Our Passaic crews regularly handle mold work in Passaic and the surrounding towns: Wallington, Clifton, Garfield, and East Rutherford. If you are in one of those areas and dealing with mold after a backup or a flood, call the same number: (940) 466-4354. We dispatch locally, we answer live, and we write the price before we start.
Serving Passaic, NJ - Our Local Coverage Area
We’re based in the Passaic area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Mold Remediation in Passaic
We can typically have a crew at your Passaic property the same day you call, often within a few hours. The longer Category 3 water sits, the further it wicks into walls and subfloor, so speed matters. Call (940) 466-4354 and a live person will give you a real arrival window, not a callback queue.
Yes. River-adjacent homes in Passaic deal with Category 3 water more often than inland towns. That means more material removal, more aggressive containment, and different drying targets. We classify the water before we decide what gets dried versus what gets pulled. Sewage-affected drywall never gets saved.
No. Spraying a surface does not dry the framing behind it, does not remove contaminated insulation, and does not change moisture readings. If the water wicked into a wall cavity or subfloor, the mold will return. A proper remediation includes removal of affected materials, drying, and antimicrobial treatment with verification. If you want a second opinion, call us and we will explain what a full remediation looks like.
Usually, yes. We set containment and negative air pressure around the affected area, so work can proceed in the ground-floor unit while tenants upstairs stay in place. We did exactly that on a Monroe Street three-family after a storm drain backup, keeping the upper two units occupied the entire time.
We bring professional-grade drying and air quality equipment: Dri-Eaz dehumidifiers, Phoenix and XPOWER air movers, thermal imaging cameras, and moisture meters. We run the equipment under IICRC protocols and log daily readings until the structure reaches pre-loss moisture levels. The equipment matters because Passaic’s older homes retain moisture in ways newer construction does not.
If you suspect mold in your Passaic home, call (940) 466-4354. A live person answers. We will schedule a time, show up when we say we will, and put the price in writing before anything gets touched. That is how we work, in Passaic and everywhere else.
Written by Blake Sorensen, Owner at Wendell Water Damage Restoration, serving Passaic and surrounding New Jersey communities.






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