Windsor Environmental
New York City apartment buildings

Mold inspection and air testing

A musty smell, a leak, a stained ceiling or a mold violation? An inspector finds the source, samples the air and surfaces, and tells you clearly what needs to be done and what doesn’t.

  • Licensed in New York & New Jersey
  • NYC DEP-certified investigators
  • EPA-certified lead professionals
  • Fully insured, COIs on request
  • Free in-person estimates

Mold needs moisture. A good inspection finds where the water is coming from as well as where the mold is, so the problem doesn’t come back after cleanup. Air samples compared with an outdoor baseline show whether spore levels inside are elevated, even when you can’t see anything.

What’s included

  • Visual inspection and moisture readings to trace the source
  • Air sampling indoors plus an outdoor baseline
  • Surface swabs or tape lifts where there’s visible growth
  • A written report and remediation plan (the protocol the remediator follows)
  • Post-remediation clearance testing
  • Licensed NYS mold assessors for New York projects that require them
Mold growth spreading across a white wall

When people call us

  • After a leak, flood or ceiling collapse
  • A musty smell with no visible mold
  • Allergies or health concerns at home
  • HPD mold violations and tenant complaints
  • Buying or selling a home
  • Proving a cleanup worked (clearance)
  • Insurance claims and landlord–tenant disputes

Licensing and rules we follow

  • New York State licenses mold assessors and remediators for projects over 10 square feet, and the assessor and remediator on a project must be independent of each other. We coordinate both through separately licensed firms.
  • NYC Local Law 61 sets standards for mold work in buildings with 10 or more apartments, including filings with DEP. We handle them.
  • New Jersey doesn’t license mold contractors, which makes an independent inspection and clearance test even more valuable.

What it costs

Price depends on the number of air samples and swabs, the size of the space and how quickly you need results.

Free in-person estimates

Many jobs can be quoted from photos and a report. When a job needs to be seen, we come out and estimate it for free, anywhere in New York or New Jersey.

Every size of job

We handle the smallest jobs and the biggest, with the same care.

Small jobsA pipe elbow, one bathroom floor, a single test. No job is too small.
Apartments & homesKitchens, gut renovations, basements, whole houses.
Buildings & roofsFull roofs, siding, boiler rooms, multi-floor commercial and phased work.

How it works

  1. Tell us what’s happening

    Where, how big, and whether the leak has been fixed.

  2. Inspection and sampling

    Moisture readings, air samples and swabs as needed.

  3. Lab results

    Typically within a few business days. Rush available.

  4. Report and plan

    A clear explanation and, if needed, a remediation plan and quote.

Frequently asked questions

Do I need testing if I can see the mold?

For a small visible patch, testing mostly confirms what you know. For larger areas, hidden sources, health concerns, disputes or insurance, testing and a written plan are worth it.

How fast are results?

Usually a few business days; rush turnaround is available.

What does the outdoor sample do?

It’s a baseline. Indoor levels are compared with outdoor levels to see whether there’s a problem inside.

Can you handle an HPD mold violation?

Yes: inspection, remediation through a licensed remediator, and the paperwork to certify the correction.

Will you tell me if I don’t need remediation?

Yes. Sometimes fixing a leak and cleaning a small area is all it takes, and we’ll tell you.

Do you test commercial spaces and schools?

Yes, with documented reports for your records.

We serve New York and New Jersey

A New Jersey home

New Jersey

Every county, from North Jersey (Bergen, Hudson, Essex) to Central Jersey (Monmouth, Ocean) and South Jersey.

(908) 271-8485

Tell us what you’re dealing with.

One call or a quick online request gets you a clear quote, or a free in-person estimate when the job needs one. We serve New York and New Jersey alike.

Call NY(347) 394-4411Call NJ(908) 271-8485Get a quotetakes a minute