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 The Bronx
Mold in a Bronx apartment or rowhouse rarely announces itself politely. It shows up as a musty smell in a bathroom, black spotting along a ceiling, or a cough that won’t quit. We respond to mold calls across The Bronx every day, from Riverdale to Throggs Neck. The job is always the same at its core: find the moisture, stop it, remove the mold, and prove the air is clean before we leave. If you’ve found mold in your home, call (940) 466-4354 right now. A live person answers, and we’ll give you a written price before any work starts.
Our crews know The Bronx’s housing stock. They know the pre-war buildings along the Grand Concourse, the six-story walk-ups in Morris Heights, and the single-family homes in Pelham Bay. That matters because mold here usually traces back to building-wide moisture problems, not a single spill. We treat the source, not just the stain.
Why Wendell Water Damage Restoration Is The Bronx’s Preferred Mold Remediation Company
We’re not the cheapest mold company in The Bronx, and we don’t try to be. We’re the one that answers the phone, shows up when we say we will, and writes the price down before a single tool comes off the truck. Blake Sorensen, who leads our team, has built the company around one rule: no surprises. That’s why every job includes a written price, a written guarantee, and a free second visit if the repair fails.
Our reputation in The Bronx comes from doing the job the way it should be done. We use IICRC, RIA, and IFA standards on every job. We deploy professional equipment from Dri-Eaz, Phoenix, and XPOWER, the same brands used on large commercial loss sites. Every tech is background-checked and uniformed, and you’ll get a live arrival time you can track, not a vague four-hour window. Before and after photos are texted to you so you can see the work is done right.
The The Bronx service area we cover includes every neighborhood, from Mott Haven to Country Club. No zip code is too far, no building too old.
Mold Removal Contractor in The Bronx
A Mold Removal Contractor in The Bronx does more than scrub visible mold off a wall. The real work happens behind the drywall, under the floor, and inside wall cavities where moisture hides. In The Bronx, where pre-war multifamily buildings dominate, that hidden moisture is almost always the culprit. A typical mold removal job in The Bronx runs $1,800 to $6,500 depending on the square footage affected and whether containment is required.
Containment and Air Filtration
Before we remove any mold, we seal off the work area with plastic sheeting and run HEPA-filtered negative air machines. This keeps mold spores from drifting into adjacent apartments through shared walls or ventilation. In a Bronx six-story walk-up, skipping this step is how one unit’s mold problem becomes three units’ mold problem.
Source Repair and Moisture Mapping
We use moisture meters and thermal imaging to find where the water is actually entering. In Bronx pre-war buildings, we often find pinhole supply-line leaks, failing roof drains, or condensation from uninsulated risers. Removing mold without fixing the source means you’ll call us back in six months. We’d rather fix it once.
Bathroom Mold Removal in The Bronx
Bathroom Mold Removal in The Bronx is the most common call we take, and it’s rarely just about the bathroom. In pre-war buildings along the Grand Concourse and in Kingsbridge, bathroom mold usually traces to a leaking supply line, a failing wax ring, or poor ventilation in a windowless bath. A typical bathroom mold removal in The Bronx runs $900 to $3,200, depending on whether we need to pull tile, open the ceiling below, or replace drywall.
Ceiling and Wall Cavity Work
We got a call from a landlord on the Grand Concourse in the Bronx after tenants reported a musty smell in a second-floor bathroom. Our tech performed moisture mapping on the ceiling below and found moisture readings of 22% in the drywall from a pinhole supply-line leak. We set up containment with air movers and a Dri-Eaz dehumidifier, applied antimicrobial treatment, removed the compromised drywall, and had the unit back to pre-loss condition in three days.
Ventilation and Humidity Fixes
A Bronx bathroom with no exhaust fan or a broken one will stay damp forever. Mold will return no matter how well we clean it. Part of a proper bathroom mold job is checking the fan, the vent run, and the humidity level after we finish. If the air can’t move, we’ll tell you before you pay for remediation that won’t hold.
Trusted Brands We Service in The Bronx
We stock parts and supplies for the major equipment brands Bronx homes rely on. Our trucks carry Dri-Eaz dehumidifiers and air movers, Phoenix axial fans, and XPOWER air scrubbers. Because we keep local inventory in the metro area, turnaround for Bronx customers is fast, usually same-day or next-day dispatch. You won’t wait a week for a part to ship from out of state. Whether it’s a high-capacity dehumidifier for a flooded basement in Throggs Neck or an air scrubber for a mold job in Riverdale, we have what we need to get your home dry and keep it dry.
Common Mold Remediation Problems We See in The Bronx Homes
- Painted-over mold in pre-war buildings. Landlords or tenants in Bronx pre-war buildings often treat visible mold with bleach and paint over it, missing hidden moisture in wall cavities behind old plaster. The mold returns within weeks because the water source never stopped.
- Skipped containment spreads spores between units. Unlicensed handymen in the Bronx often skip containment and HEPA filtration, spreading mold spores from one apartment to adjacent units through shared walls and ventilation. A small bathroom job turns into a building-wide complaint and often a Department of Buildings violation.
- Building-wide sources ignored on single-unit jobs. In Bronx multifamily buildings, crews sometimes fail to address the building-wide source like a recurring roof leak or failing riser, so they remediate one unit only to be called back to the next. We check the commons, the risers, and the roof drains before we declare a unit done.
- Windowless bathrooms with no working exhaust. Many Bronx apartments have interior bathrooms that rely entirely on a vent fan. When the fan fails or was never installed properly, humidity stays trapped, and mold thrives on the ceiling and grout. We test ventilation as part of every bathroom mold job.
Pricing for Mold Remediation in The Bronx, NY
We Also Serve Cities Near The Bronx
While this page focuses on Mold Remediation in The Bronx specifically, our crews also handle jobs in Brooklyn, Queens, Manhattan, and Staten Island. If you’re a landlord with properties across boroughs, we can coordinate multi-unit work across city lines without juggling multiple contractors.
Serving The Bronx, NY - Our Local Coverage Area
We’re based in The Bronx and provide The Bronx Water Damage Restoration, so we 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 The Bronx
How quickly can mold grow after a leak in a Bronx apartment?
Mold can begin growing within 24 to 48 hours after a leak in a Bronx apartment, especially in humid summer months when indoor humidity stays high. In pre-war buildings with plaster walls and closed-off cavities, you may not see it for weeks, but it’s already spreading behind the surface. Call us the day you notice a leak, musty smell, or staining. Speed matters more in The Bronx’s older housing stock than in newer construction because porous plaster and lath hold moisture longer. Call (940) 466-4354 and we’ll send a tech with a moisture meter the same day in most Bronx neighborhoods.
Do you need to tear out my bathroom walls to remove mold in the Bronx?
Usually yes, at least partially. Mold penetrates drywall and plaster, and surface cleaning alone doesn’t reach the roots inside the material. In Bronx bathrooms where leaks have been running behind tile or drywall, we typically cut out the affected section, treat the framing with antimicrobial, and replace the wall material. In some cases, like mold on non-porous tile surfaces, cleaning and HEPA vacuuming suffice. We’ll tell you exactly what needs opening before we start, and you’ll have the scope in writing. Call (940) 466-4354 for an assessment.
What’s the difference between Category 1, 2, and 3 water when it comes to mold in the Bronx?
Category 1 is clean water, like a supply line leak. Category 2 has some contamination, like a dishwasher or washing machine overflow. Category 3 is grossly contaminated water, like sewage backup or flooding from outside. The category determines how aggressively we need to remove materials. Cat 1 leaks often let us dry in place. Cat 3 requires removal of most porous materials, including drywall, insulation, and sometimes flooring. Replacing those materials in a Bronx pre-war building adds cost, often $1,000 to $3,000 beyond the initial mitigation. We’ll classify the water during our first assessment and explain the protocol before cutting anything.
How do you contain mold spores during remediation in a Bronx multifamily building?
We set up containment with plastic sheeting, seal off supply and return vents, and run HEPA-filtered negative air machines. This creates negative pressure so spores don’t drift into neighboring units through shared walls, hallways, or ventilation shafts. In Bronx buildings with common corridors, we also lay floor protection and run an air scrubber in the work area during the entire job. Skipping containment is how a one-apartment job turns into a building-wide problem. Every one of our Bronx mold jobs includes containment, no exceptions.
Will my Bronx landlord pay for mold remediation?
In New York City, landlords are generally responsible for mold remediation under the NYC Housing Maintenance Code and the state’s implied warranty of habitability, provided the mold isn’t caused by tenant behavior like refusing to ventilate or reporting leaks late. Many Bronx tenants successfully have remediation billed to their landlord, especially in rent-stabilized buildings where 311 complaints and HPD violations are common. We document everything with photo evidence and moisture readings, and we’ll work with your landlord or their insurer directly. If you’re a tenant, call (940) 466-4354 and we’ll explain what to say to your landlord and what your rights are before you spend a dollar of your own money.
Contact Wendell Water Damage Restoration for Mold Remediation in The Bronx
If you’ve got mold in The Bronx, don’t wait for it to spread through wall cavities and into adjacent rooms. Call (940) 466-4354 now. A live person answers 24/7, and we’ll schedule a technician with a live arrival time you can track. You’ll get a written price before any work starts, before-and-after photos by text, and a 365-Day Done Right Promise on every repair. Blake Sorensen and the whole Wendell team serve every Bronx neighborhood, from Riverdale to Throggs Neck. One call. A real person. A straight answer.
Written by Blake Sorensen, Owner at Wendell Water Damage Restoration, serving The Bronx since 2006.






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