Mold Testing NYC
Mold testing means collecting air and surface samples and sending them to an independent lab, so you get a written result showing what type of mold is present and how much of it there is. It’s the documented proof insurers, landlords, and buyers ask for. We test apartments, brownstones, and multi-unit buildings across Manhattan, Brooklyn, Queens, the Bronx, Staten Island, and New Rochelle.
Request Your Mold Testing Quote
Get a straight answer before we schedule a visit.
No obligation. We’ll call to confirm your appointment.
What’s Included in Mold Testing
- Air sampling, comparing the room in question against an outdoor baseline reading
- Surface sampling from visible growth or any spot you’re concerned about
- Every sample sent to an independent, accredited laboratory for analysis
- A written report naming the mold type and how concentrated it is
- Documentation formatted so you can hand it straight to an insurer, landlord, or co-op board
- A plain-language walkthrough of what your results actually mean
- A visual-only walkthrough with no lab samples taken. See our mold inspection service
- Removing or cleaning up mold once it’s confirmed. See our mold remediation service
- Ongoing HVAC or indoor air quality monitoring. See our indoor air quality testing service
What’s the difference between mold testing and a mold inspection?
An inspection is a visual walkthrough. Someone looks at the area, checks for moisture, and tells you what they see. Testing goes a step further: we collect air or surface samples and send them to a lab, so you get a written result confirming what type of mold is there and how much of it. If you need documented proof, testing is the one that gives it to you.
Signs You Need Mold Testing
Testing isn’t just for visible mold. These are the situations where it usually makes sense.
A musty smell in a room with no mold you can actually see
You’re buying, selling, or closing on a property and want documented proof either way
You’re filing an insurance claim or a dispute with a landlord that needs a lab result behind it
Someone in the home has ongoing allergy or asthma symptoms with no clear cause
The Mold Testing Process, Step by Step
Contact & Scheduling
You tell us what’s prompting the test, whether it’s a smell, a health concern, or a document you need. We get a technician out at a time that works for you.
On-Site Sample Collection
A technician collects air samples, surface samples, or both, depending on what you’re trying to confirm. This takes a matter of minutes per sample and doesn’t disturb the space.
Independent Lab Analysis
Samples go to an accredited lab that has no financial stake in whether mold is found, since the company that tests can’t also be the one that removes it under New York law.
Report Delivery & Next Steps
You get a written report showing the mold type and concentration in plain language, plus honest guidance on whether remediation is actually needed.
Will the same company that tests my mold also remove it?
No. Under New York Labor Law Article 32, the company that assesses or tests your mold can’t be the same one that remediates it. That’s the law, not just our policy. It means the results you get from testing are not tied to whether we’d profit from a bigger job.
What Mold Testing Costs
Cost depends on the scope of the test. Here’s what affects it:
- How many rooms or areas need samples
- Whether you need air sampling, surface sampling, or both
- Standard lab turnaround versus a rushed result
- Whether the report needs to be formatted for an insurer, landlord, or co-op board
A quick call gets you a real number based on your specific unit or building.
How We Reduce Your Risk
- A lab that’s independent from any remediation work, so results aren’t influenced by a sales pitch
- A price confirmed with you before any samples are collected, so there’s no surprise invoice
How long does it take to get mold testing results back?
Standard lab turnaround usually runs a few business days from the day samples are collected. If you’re on a tight deadline, like a closing date or an insurance filing, ask about a rushed turnaround when you book.
Real Mold Testing Results
Before and after: the same space, before sample collection and after the visit was complete.
Before
After
Before
After
Licensed Mold Testing Standards
Every test we run follows the same licensed, independent process, no matter who the results are for.
NY State Mold Assessor License (Article 32)
Assessment and testing work follows New York Labor Law Article 32. We’re licensed as mold assessors through the NY State Department of Labor.
Legally Separate From Remediation
New York law bars the same firm from testing and remediating the same job. That separation is what keeps your results objective.
IICRC S520 Sampling Protocols
Our sample collection follows the ANSI/IICRC S520 standard’s sampling and assessment protocols.
EPA-Guided Testing Practices
Our sampling approach follows current EPA guidance for assessing indoor mold and moisture conditions.
Is mold testing required by Local Law 55?
Local Law 55 requires an annual mold inspection for buildings with three or more units. Testing itself isn’t automatically required, but buildings with 10 or more units must use a state-licensed assessor once an affected area passes 10 square feet, and that often means lab-confirmed testing rather than a visual check alone.
What NYC Property Owners Say About Our Testing Work
I needed something in writing for my insurance adjuster, not just someone’s opinion. The lab report did exactly that and the claim went through without a fight.
Our landlord kept saying there was nothing wrong. The test results said otherwise, and having a real lab report behind us changed the whole conversation.
We were closing on an apartment and wanted peace of mind before signing. Fast scheduling, clear report, no pressure to book any extra work.
Mold Testing Questions, Answered
Yes. The written lab report showing the mold type and concentration is exactly the kind of documentation most insurers ask for when you file a claim. We format the report so you can hand it straight to your adjuster.
It’s not legally required for most sales, but it’s common practice when a home inspection flags a musty smell, past water damage, or visible staining. A lab-confirmed result gives both sides something concrete to negotiate around instead of guessing.
Usually air samples, surface samples, or both. Air samples compare the room against an outdoor baseline to check for elevated mold spore counts. Surface samples, taken with a swab or tape lift, confirm exactly what’s growing on a specific spot.
A negative result in one spot doesn’t always rule out mold elsewhere, especially if it’s hidden behind a wall or under flooring. If the smell persists, we can talk through testing a different location or checking for a moisture source that hasn’t been found yet.
Yes. Boards and management companies request testing regularly, especially for shared walls, common areas, or as part of Local Law 55 compliance. We can send results directly to the board or management company if you’d like.
Not always. It depends on the type of mold, how concentrated it is, and where it’s located. Your report includes plain-language guidance on next steps, and we’ll always tell you honestly if remediation isn’t actually necessary.
Local Law 55 requires an annual visual inspection for buildings with three or more units. It doesn’t automatically require lab testing, but buildings with 10 or more units must bring in a state-licensed assessor once an affected area passes 10 square feet, which often means testing rather than a visual check alone.
Ready to Get Your Mold Testing Quote?
Tell us what’s prompting the test, and we’ll give you a real answer before we schedule anything.
Request Your Mold Testing Quote
- NY DOL-licensed mold assessor (Article 32)
- Independent, accredited lab analysis
- Serving Manhattan, Brooklyn, Queens, the Bronx, Staten Island & New Rochelle