Mold Testing Services
Lab-Certified Mold Testing for Peace of Mind
If you’re looking for a full mold inspection in Chicago, start here → Mold Inspection Chicago & Suburbs
Not all mold is visible — and not all indoor air is safe. Whether you're dealing with persistent symptoms, musty odors, or want peace of mind before a major renovation or sale, professional mold testing gives you clear, lab-backed answers.
At Mr. Mold Inspector, we offer certified mold testing services, including air sampling, surface swabs, and in-wall cavity testing. All samples are analyzed by an accredited laboratory with results delivered fast.
Trusted by homeowners, buyers, landlords, and contractors
Call or text: 773-673-4020
What Is Mold Testing?
Mold testing involves collecting samples from your property to determine:
What types of mold spores are present
Whether mold is growing in hidden areas
If airborne levels are elevated or abnormal
Whether discoloration is actually mold or something else
Mold testing provides lab-confirmed evidence of mold exposure.
What Types of Mold Testing Do We Offer?
We provide three types of professional mold sampling:
Air Sampling
For our standard Micro5 spore-trap testing, air is collected at 5 liters per minute for 5 minutes, producing a 25-liter sample. Indoor samples are evaluated alongside an outdoor control sample, visual inspection findings, and moisture readings.
Best for: Musty odors, general air quality concerns, post-remediation clearance, and health-related investigations
Surface Swab Testing
Surface sampling confirms whether visible staining, spotting, or discoloration is actually mold.
A sterile swab or tape lift is collected from drywall, tile, wood, insulation, vents, or furnishings
The lab identifies the mold genus (e.g. Cladosporium, Aspergillus, Stachybotrys)
Best for: Confirming visible mold, identifying species, or verifying if cleaning/removal was effective
Wall Cavity Air Sampling (In-Wall Mold Testing)
When mold is suspected behind walls or ceilings, we perform in-wall air sampling (aka cavity testing):
A small, penny-sized hole is drilled into the wall or ceiling
A sterile air tube is inserted to draw a sample from inside the cavity
The sample is analyzed for mold spores by volume and type
Best for: Hidden mold detection, unexplained odors, water-damaged walls, or pre-renovation clearance
Cavity testing is minimally invasive, and we can either seal the opening or leave it accessible for a contractor. It provides a powerful look inside without opening large areas.
When Should You Get Mold Testing?
You may benefit from mold testing if:
You smell something musty but don’t see visible mold
You’re sensitive to mold and need air quality confirmation
You’re in a real estate transaction that requires documentation
You’re doing remediation or renovation and want to confirm safety
You’re a tenant or landlord involved in a mold dispute
You’re working with a doctor or attorney and need lab evidence
You’re prepping a home for sale and want to rule out airborne issues
Giving you real lab data to make confident decisions.
How Mold Samples Are Collected
Here’s what happens during a standard mold testing appointment:
Discussion of your concerns and property history
Targeted air samples collected in concern areas and outdoors
Surface swabs or tape lifts from visible staining or suspect growth
Cavity air sample (if needed), using a specialized tube through a small access hole
Labeling and secure packaging of all samples
Samples are shipped to a licensed lab the same day
You’ll receive a full lab report + our interpretation within 4 business days.
What Will the Lab Report Show?
Every certified mold test includes a detailed lab report showing:
Mold types (e.g. Penicillium, Aspergillus, Stachybotrys, Chaetomium)
Spore counts per cubic meter of air (air samples)
Confirmation of mold presence on swabs (surface samples)
Our interpretation of whether levels are elevated or normal
Next steps or clearance confirmation (if applicable)
These reports are often used for:
Insurance claims
Real estate disclosures
Legal cases
Medical documentation
Remediation verification
Professional Mold Inspection & Laboratory Testing — All in One
At Mr Mold Inspector, every mold inspection includes professional testing. We don't separate the two because a thorough mold assessment requires evaluating both the building conditions and the laboratory findings.
Our inspectors assess accessible areas for visible mold, moisture intrusion, water damage, and conditions associated with hidden mold growth. We use professional moisture meters, thermal imaging when appropriate, and air or surface sampling to evaluate areas of concern.
Our standard residential inspection starts at $375 and includes two laboratory samples: one indoor air sample and one outdoor control, or two surface swabs. Additional sampling, including wall cavity testing, is available when warranted.
Every inspection includes documented findings, laboratory results, and clear recommendations. We provide independent mold inspections and testing throughout Chicago and the surrounding suburbs, without selling mold remediation services.
Schedule Professional Mold Testing Today
If you need lab-confirmed results, we’re ready to help — with fast, certified mold testing backed by real expertise.
Call or text: 773-673-4020
Same-week appointments available