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.
Before
After
Before
After
Before
AfterTrusted Mold Remediation for New York City Homeowners
Mold remediation in New York City typically costs between $1,800 and $6,500 depending on the affected square footage, the material classification of what’s been colonized, and whether containment of the HVAC system is required. Most single-room remediations in walk-ups, brownstones, and prewar co-ops fall between $2,200 and $4,200. We dispatch to all five boroughs and can typically begin containment within 24 to 48 hours of your call to (629) 213-4606.
DryMark Restoration has handled mold in New York City housing stock since 2011, when our founder, Alicia Brennan, left claims adjusting after watching too many homeowners lose settlements to undocumented remediation work, including jobs that lacked the documentation standards we now bring to every project from New York to Mold Remediation - Huntington Park. We don’t sell fear and we don’t pad scopes. We document moisture readings, photograph every affected surface before and after treatment, and hand you a written price before a single tool leaves the truck. That’s Haven Standard, Clause 1. No exceptions, no “we found more once we got inside” add-ons, no insurance claim submitted without a paper trail an adjuster can actually follow.
What Our Mold Remediation Service Includes
Every mold job in New York City runs on the same documentation spine: a written scope, a moisture map of the structure, a photo record on every visit, and a signed 365-Day Done Right Promise when the crew packs out. What changes is the method, because mold in a Park Slope brownstone basement behaves differently than mold behind a Midtown bathroom wall. Here’s what each service covers when our technicians arrive.
Mold Inspection & Testing
An inspection locates moisture that’s feeding colonization before it becomes a drywall tear-out. We use moisture meters and thermal imaging to map where water has moved inside wall cavities, then we pull air and surface samples where visible staining doesn’t match the moisture pattern. DryMark Restoration works with independent, certified labs for sample analysis, so the lab report comes back without our name on the chain of custody bias. You get the numbers, the lab reference, and a written explanation of what each result means for your specific apartment or house.
Mold Removal
Mold removal is the physical removal of colonized materials: drywall that’s lost structural integrity, insulation that’s holding water, carpet that’s been wet for more than 48 hours. New York City buildings built before 1980 often hide mold behind plaster-and-lath, which reads wet on a meter but looks dry on the surface, so we remove to the moisture line, not to the stain line. Our technicians bag and seal affected material at the source, run HEPA-filtered negative air machines to keep spores from migrating, and document the removal count in square feet so your claim reflects the actual material discarded, not an estimate.
Black Mold Remediation
“Black mold” is the name homeowners use for Stachybotrys chartarum, a toxigenic species that colonizes long-wet cellulose materials like drywall paper backing and ceiling tiles. The remediation process is the same containment, removal, and air scrubbing protocol as any other mold job, but with stricter personal protective equipment and a wider containment perimeter. We treat every suspect colony in New York City homes as if it’s toxigenic until lab results say otherwise, because the cost of containment is far lower than the cost of spore spread into an adjacent apartment, a principle we apply equally to our Mold Remediation in South Gate. Any company that skips containment to save you money is quoting a cleanup, not a remediation.
Air Quality Restoration
Air quality restoration addresses airborne spore counts after the colonized material has been removed. We deploy HEPA air scrubbers and, where needed, hydroxyl generators to pull particulate from the breathing zone, then we run a post-remediation clearance test to verify spore counts have returned to normal background levels for New York City’s ambient outdoor air. The clearance test is the document that matters: it’s the number your insurer reads to confirm the job is finished. We include it in the written scope, not as an add-on charge.
Crawl Space Treatment
Crawl spaces under New York City rowhouses and attached homes are mold incubators because dirt floors release moisture upward, and vapor pressure differentials trap it against floor joists. We install or repair vapor barriers, seal rim joists with closed-cell foam where structural drying data supports it, and treat exposed wood framing with an EPA-registered antimicrobial. Every crawl space job includes before and after psychrometric readings, the measurements of temperature, humidity, and dew point that show drying actually occurred. Documentation to IICRC standards is standard here, not a premium tier.
Moisture & Humidity Control
Mold cannot be remediated without resolving the moisture source, or the same colony returns within a season. In New York City, that source is often a bathroom vent discharging into a wall cavity, a kitchen exhaust recirculating into the apartment, or a condensate drain from an through-wall AC unit. We correct the airflow and drainage problem, then set up dehumidification with equipment from XPOWER or B-Air sized to the cubic footage of the affected space. The drying log we give you records the downward slope of relative humidity readings day by day, which is exactly the paper your adjuster wants to see.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service for Mold Remediation
We run professional-grade drying and air-scrubbing equipment from XPOWER and B-Air across all our New York City mold remediations. XPOWER’s axial air movers are useful in tight Manhattan hallways and prewar basements where oversized fans won’t fit, and we’ve put hundreds of their units on jobs where access meant carrying equipment up five flights. B-Air’s LGR dehumidifiers are workhorses in New York City’s summer humidity, when outdoor dew points above 65°F make it nearly impossible to dry a structure without mechanical assistance.
For moisture trapped in wall cavities and under hardwood floors, we use Injectidry systems that push dry air into concealed spaces without tearing out finished surfaces. That’s the difference between drying a floor and replacing a floor, and in a New York City co-op where floor replacement involves board approvals and contractor insurance filings, drying is nearly always the better financial decision. Whether you have a forced-air system that’s molded the return plenum or any other configuration, our technicians arrive with the equipment that matches the moisture data, not a one-size-fits-all setup.
BeforeAfterSigns You Need Mold Remediation Right Now
- Musty odor that persists after cleaning. A smell that’s often described as wet cardboard or old books is the off-gassing of mold metabolism. If you’ve washed every surface and the odor returns within a day, the colony is behind a wall or under a floor, and no amount of surface cleaning will reach it.
- Visible staining on walls, ceilings, or baseboards. Discoloration that’s green, black, gray, or pink isn’t always mold, but staining in a pattern that follows a water line usually is. If the stain grows or darkens across a week, it’s an active colony, not a historic blemish.
- Peeling paint or bubbling drywall without a leak you can see. When paint separates from the wallboard behind a bathroom or around a window, moisture is moving through the cavity. That moisture is feeding something, and whatever’s colonizing the drywall paper is spreading behind the finished surface.
- Unexplained allergic symptoms at home that improve when you leave. Coughing, sneezing, itchy eyes, or sinus pressure that tracks with time spent inside your own apartment often means airborne spores are in the breathing zone. An air quality test will show the spore count, and a clearance test after remediation will show the improvement as a number, not a feeling.
- Past water damage that was never professionally dried. A supply line burst, a roof leak, an overflowing tub: if water sat for more than 48 hours and the area wasn’t opened and dried with air movement and dehumidification, mold is likely already established. The good news is that two or three days of moisture often means the colony is young and the remediation footprint is smaller.
Our Mold Remediation Process - Step by Step
- 1
Written assessment and moisture map. We inspect the property, measure moisture readings in every affected and adjacent material, and document the square footage of visible colonization. You receive a written scope of work and a fixed price under Haven Standard, Clause 1 before you sign anything. This is the document that keeps the job honest from day one.
- 2
Containment and airflow control. We seal the affected area with plastic sheeting and establish negative air pressure using HEPA-filtered air scrubbers, so air flows into the containment zone but not out. This prevents spores from being carried into unaffected rooms during the removal work. In multi-unit New York City buildings, this step is what protects your neighbors, which is what keeps the building board from freezing your renovation plans.
- 3
Source removal and surface treatment. Colonized drywall, insulation, carpeting, and other porous materials are cut out to the moisture line, bagged inside the containment zone, and carried out through the shortest possible path. Remaining surfaces are HEPA-vacuumed and treated with an EPA-registered antimicrobial. We photograph every removed section and every treated surface.
- 4
Drying and air quality verification. Once the mold is removed, we run dehumidification and air movement until psychrometric readings show the structure is dry. In New York City’s humid months, this can take three to five days. Then we run a post-remediation clearance test, and if spore counts don’t sit within normal outdoor background range, we keep working until they do.
- 5
Documented handoff and the 365-Day Done Right Promise. You receive the complete file: before and after photos, lab results, moisture logs, the written scope, and a signed warranty under The Haven Standard. If mold returns within 365 days because our remediation missed something, we make it right at our cost. The warranty is stamped on the job, not spoken as a verbal assurance.
How Much Does Mold Remediation Cost in New York City?
A typical single-room mold remediation in New York City runs between $2,200 and $4,200, with full-floor remediations in brownstones and larger apartments reaching $6,500 to $9,000 depending on the extent of hidden moisture. Here’s what those ranges look like by service:
- Mold Inspection & Testing: $350-$800 depending on the number of samples and lab analysis requirements.
- Small remediation (under 50 sq ft): $1,800-$3,200 including containment and clearance testing.
- Mid-size remediation (50-200 sq ft): $3,200-$6,500 depending on material removal volume and access.
- Large or multi-room remediation: $6,500-$12,000+ when multiple areas or HVAC systems are involved.
The price is driven by three things: the square footage of colonized material, the accessibility of the space (a fifth-floor walk-up in Queens costs more to service than a garden-level unit with direct street access), and whether the HVAC system requires cleaning or duct replacement. You avoid overpaying by demanding a written scope that distinguishes between removal square footage and treatment square footage, and by checking that the clearance test is in the original quote. Everything above is included in the written estimate we hand you before work starts. If you have a competitor’s written quote, we’ll review it free of charge and tell you honestly whether it’s fair.
Mold Remediation Near New York City - Our Service Area
We serve all five boroughs, including Manhattan, Brooklyn, Queens, and The Bronx, plus nearby communities across the metro area. Typical first-response time for a mold containment in New York City is 24 to 48 hours from your call. DryMark Restoration also operates full-service mold remediation teams in other major metros, including Mold Remediation in Los Angeles and Mold Remediation in Chicago, for property owners with portfolios across cities.
Serving New York City, NY - Our Local Coverage Area
We’re based in the New York City area and know this community well, and we also offer our Mold Remediation in Los Angeles. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Mold Remediation in New York City
Mold remediation is the process of removing colonized building materials, treating remaining surfaces to prevent regrowth, and restoring indoor air quality to normal background levels. In New York City, remediation work is documented to IICRC standards, meaning the process, the equipment, and the clearance testing follow a written industry protocol, the same rigorous approach we take with Mold Remediation - Bell. Remediation is different from cleaning: cleaning wipes visible mold off a surface, while remediation addresses the moisture source and the hidden colonization inside wall cavities.
Most single-room mold remediations in New York City take two to four days from containment setup through post-remediation clearance testing. Larger jobs covering multiple rooms or involving ductwork can run five to ten days, and the drying phase can stretch longer in July or August when outdoor humidity slows evaporation. We tell you the expected timeline in the written scope before work begins, and we document daily moisture readings so you can watch the progress as a number, not a guess.
Single-room remediation in New York City typically costs between $2,200 and $4,200, with larger or more complex jobs reaching $9,000 or more depending on square footage and access. Inspection and testing runs $350 to $800 as a separate line item. Call (629) 213-4606 and we’ll send a technician to assess the property and hand you a written price before any work starts, under Haven Standard, Clause 1.
Yes, we regularly work in co-ops and condos across Manhattan, Brooklyn, and Queens, where building boards often require licensed, insured vendors with written scopes and certificate of insurance filings. We’ve serviced units in buildings of every era, from prewar coop buildings to newer high-rise developments. Our documentation standard meets the board package requirements for most New York City buildings, and we coordinate with management offices so the job doesn’t stall on paperwork.
For active mold that’s spreading or affecting air quality, we can typically begin containment within 24 to 48 hours of your call. A live person answers the phone at (629) 213-4606 around the clock, and we don’t route through voicemail trees. For less urgent situations, we’ll schedule an assessment at the earliest available time and still deliver the written price before work begins.
Every job is covered by the 365-Day Done Right Promise under The Haven Standard. If mold returns within a year because our remediation was incomplete, we make it right at our cost. That’s a signed warranty on the written scope, not a verbal assurance, and it covers the specific remediation work performed, with the scope and documentation as the reference points.
You don’t need to move furniture out or open walls yourself. We handle all material removal and containment setup, and we seal the work area to prevent cross-contamination. We do ask that you keep children and pets out of the containment zone during active removal, and that you clear a path from the entry door to the affected area for equipment access. If filing an insurance claim, gather any photos of the moisture source or prior water damage before our technician arrives, those images go into your documentation file.
Schedule Your Mold Remediation Service in New York City Today
Call (629) 213-4606 for a written, fixed-price estimate on mold remediation in New York City, no obligation and no pressure. We’ll inspect the affected area, document the moisture readings, and hand you a scope of work with a clear price under Haven Standard, Clause 1. Mold Remediation in New York City is a documented process, not a promise. We’re available 24/7 by phone and we’ll start when you’re ready.
Written by Alicia Brennan, Owner at DryMark Restoration, serving New York City since 2011.