Blog

Insights from New York City's indoor environmental experts.

Practical, science-backed guides on mold, air quality, and creating healthier homes.

Dark mold growth on a painted wall near a window in a city apartment

Mold Testing

How to Test for Black Mold in Your NYC Apartment: Expert Tips

Worried about black mold in your apartment, co-op, or brownstone? Here's how to check for it, what DIY tests can and can't tell you, and when to call a licensed assessor.

July 19, 2027
Inspector checking a ceiling stain with a moisture meter

Mold Testing

Do I Need a Mold Inspection? Here's How to Know

Mold is a serious issue in New York City. Here's how homeowners, tenants, and business owners can tell when it's time to call a licensed mold inspector.

July 15, 2027
Modern residential HVAC air handler with visible ductwork in a clean utility room

Home Systems

HVAC and Mold: What Every New York City Homeowner Should Know

Your HVAC system can be your best defense against mold — or its biggest distribution network. Here's how to tell which one you have.

July 12, 2027
Close-up of mold growth on a damp wall surface

Mold Basics

What Is Mold and Why Is It a Problem?

Mold is one of the most underestimated threats in New York City buildings. Here's what it is, how it grows, and why it matters for your health and property.

July 8, 2027
Inspector using a moisture meter on a bathroom wall near the shower valve

Home Systems

Bathroom Mold Prevention: A New York City Homeowner's Guide

Bathrooms are ground zero for mold in New York City homes. Here's how to stop it before it starts — from ventilation to grout.

June 28, 2027
Air sampling pump set up in a living room

Mold Testing

Importance of Professional Mold Testing for a Healthy Home

Mold is more than an eyesore. Here's why professional testing matters, when to get it, and what to expect during a visit.

June 21, 2027
Water stain and discoloration on an apartment ceiling

Warning Signs

Top Signs You Need Mold Testing in Your Home

Mold can grow undetected in places you don't check often. These are the signs that it's time for professional mold testing.

June 14, 2027
Opened wall revealing hidden mold on drywall

Health

The Dangers of Hidden Mold: How Mold Affects Your Health and Home

Mold often hides behind walls, under floors, and inside HVAC systems. Here's why hidden mold is risky and why a professional inspection matters.

June 7, 2027
Mold inspector examining a corner of a room

Warning Signs

Top 5 Signs Your Home May Need a Mold Inspection

Mold doesn't always make itself known. These five signs mean it's time to schedule a professional mold inspection.

May 31, 2027
Peeling paint and faint water staining on an interior wall

Mold Basics

The 7 Warning Signs of a Hidden Mold Problem in Your Home

Mold often hides before you ever see it. Learn the seven signs New York City homeowners should never ignore.

June 1, 2026
Inspector using a thermal imaging camera on a residential wall

Mold Testing

What to Expect During a Professional Mold Inspection

Step-by-step walkthrough of what happens during a Certified Indoor Environmentalist's mold inspection.

May 11, 2026
Close-up of a dark mold colony on drywall

Mold Testing

Black Mold (Stachybotrys) — Separating Fact from Fear

What is black mold really? Get the facts on Stachybotrys chartarum from a Certified Indoor Environmentalist.

May 4, 2026
Person in a sunlit bedroom holding a tissue

Health

Mold and Your Health — What the Science Actually Says

A clear, honest look at the health effects of indoor mold exposure, based on current medical research.

April 27, 2026
DIY mold test kit on a kitchen counter

Mold Testing

The Truth About DIY Mold Test Kits

Are hardware-store mold tests worth the money? Here's an honest review from a Certified Indoor Environmentalist.

April 20, 2026
New York City suburban home with a for-sale sign at golden hour

Real Estate

Mold Inspection for New York City Home Buyers — A Pre-Purchase Guide

Buying a home on New York City? Here's why a dedicated mold inspection is worth it before you close.

April 13, 2026
Bright staged living room prepared for a home listing

Real Estate

Selling Your New York City Home? Why a Pre-Listing Mold Inspection Matters

A pre-listing mold inspection protects sellers, prevents surprises at the closing table, and builds buyer confidence.

April 6, 2026
Old basement pipes wrapped in worn white insulation

Asbestos

Asbestos on New York City — What Homeowners Should Know

Many New York City homes contain asbestos materials. Here's what to look for, what to test, and when to act.

March 9, 2026
Modern indoor air quality monitor on a wooden table

Air Quality

Indoor Air Quality 101 — Beyond Just Mold

Mold is one piece of indoor air quality. Here's the full picture of what's in the air you breathe at home.

March 2, 2026
Empty modern office interior with glass partitions

Commercial

Commercial Mold Issues — A New York City Business Owner's Guide

Mold in commercial buildings creates liability, productivity loss, and health risks. Here's what business owners need to know.

February 16, 2026
Hand holding a clipboard next to an air sampling cassette on a tripod

Mold Testing

The Difference Between Mold Inspection and Mold Testing

Inspection and testing aren't the same thing — and you may need both. Here's how to know what to ask for.

February 9, 2026
Residential attic with exposed rafters and pink fiberglass insulation

Home Systems

Mold in Attics — Causes and Solutions for New York City Homes

Attic mold is more common on New York City than most homeowners realize. Here's why — and how to fix it.

February 2, 2026
Calm golden retriever lying on a sunlit hardwood floor

Air Quality

Mold and Pets — How Indoor Air Quality Affects Your Animals

Pets can be early warning systems for indoor air quality problems — and they're often the most affected.

January 26, 2026
Row of New York City rental townhouses at early evening

Commercial

Mold and Rental Properties — A Guide for New York City Landlords and Tenants

Mold disputes between landlords and tenants are increasingly common. Here's what each side needs to know.

January 19, 2026
Modern HEPA air purifier in a bright minimalist living room

Air Quality

Air Purifiers — What Actually Works for Mold and Indoor Air Quality

Not all air purifiers are equal. Here's an honest look at what works for mold and what doesn't.

January 12, 2026
Empty elementary school classroom with morning light

Commercial

Mold in Schools and Childcare Facilities

Children are especially vulnerable to mold exposure. Here's what parents and administrators should know about school IAQ.

January 5, 2026
Older New York City home mid-renovation with exposed wall studs

Air Quality

Renovating an Older New York City Home — Indoor Air Quality Considerations

Renovating an older home means disturbing decades of dust, mold, and possibly asbestos. Here's how to do it safely.

December 29, 2025
Inspector reviewing a checklist with a homeowner at a front door

Mold Testing

How to Choose a Mold Inspection Company on New York City

Not all mold inspection companies are equal. Here's how to evaluate options and avoid the bad actors.

December 22, 2025

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