Top-rated mold & toxic material testers.

Get matched with top mold & toxic material testers in Naperville, IL

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Mold & toxic material testers in Naperville

Avatar for Great Environmental, Inc.
Great Environmental, Inc.
4.9(
53
)

Serving Naperville, IL and surrounding areas

Approved

In business since 2005

Small jobs welcome

Credit card accepted

"John came out to inspect our old house for asbestos. We thought there might be something there and indeed John found it. He offered a number of solutions, and rather than selling a service just to sell, he spent time to educate and strategics about the best treatment option. We haven't committed to full removal but are grateful for John's expertise and patient outline of options."
"Something" Going on in your Home?
Symptoms of a "Sick Home"
Do you know what is in your air?
Your family is all that matters
Nothing is more important than your health!

+2

Response time1 day
9 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Bluestone Environmental Inc
Bluestone Environmental Inc
4.9(
202
)

Serving Naperville, IL and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Work went well. Contractor was punctual and explained each step of the process. Contractor took care to safely remove mold while keeping the work area and house clean."
Estimator
Response time1 day
Response rate91%
7 neighbors recently requested a quote
Avatar for AdvantaClean of Northwest Chicagoland
AdvantaClean of Northwest Chicagoland
5.0(
120
)

Serving Naperville, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1994

Free estimates

Emergency services offered

"A couple months late with this review but JT was great and he’ll be my first call if I ever have any mold issues again. I had a bunch of vintage items that I didn’t realize had mold and when I tried to clean them, I made it worse. I got rid of them but was worried mold had spread in the air. JT did a walk through & recommended air testing. He gave lots of explanation about mold, treatments, etc so I thoroughly understood my situation and air test results in context. No sales pressure, just a straightforward, knowledgeable guy. Collected the outside air sample (the baseline for comparison) during a polar vortex and hustled to make the last Fedex pickup on Friday night so test results would come back ASAP. Has an independent lab do the analysis of air samples and report, which is good practice. Plus, we are getting bonus mileage out of the air purifiers we got now that it’s allergy season. Good guy, good communication, good job!"
Large attic before remediation. This attic was covered very heavily in mold.
Attic Mold Remediation and Encapsulation
Mold on the ceiling... A common occurrence in bathrooms!
Demolition and Mold Remediation
Mold Remediation of Window Sills

+20

Response time9 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for OMG Sanitized, Inc.
OMG Sanitized, Inc.
4.8(
29
)

Serving Naperville, IL and surrounding areas

Approved

In business since 2015

Warranties offered

Credit card accepted

"Very professional, they exceeded my expectations. They did everything they said they would plus. They were very timely and provided before and after pictures of their work and before and after reading of the mold count. OMG also warranted their work for 3 years. I would definitely hire them in the future. (5 Stars +)"
Attic Mold
Attic Mold Removal
Professional Mold Inspector
Professional Mold Inspection
Professional Mold Inspection

+1

Response time7 hrs
Response rate89%
Recommended by100%of homeowners
Avatar for Green Home Solutions - Chicago West Suburbs
Green Home Solutions - Chicago West Suburbs
4.9(
34
)

Serving Naperville, IL and surrounding areas

Approved

In business since 2020

Emergency services offered

Warranties offered

"Great experience with Jim, he seemed knowledgeable and assured me that I didn't have a mold problem. He also saved me money by not doing test he felt were unnecessary. My only concern was for 300 bucks if he should of tried to do a few test to check the pm levels or voc levels but he said he has a good nose for such things. He gave me good tips to help with my humidity which he stayed was the main issue in my home. Overall good experience"
Damage wood floors with mold
Crawlspace Encapsulation
Work Fleet
Work Fleet
Work Fleet

+16

Response time3 hrs
Response rate95%
Recommended by90%of homeowners
Avatar for Mold Test Company IL
Mold Test Company IL
3.8(
105
)

Serving Naperville, IL and surrounding areas

Approved

In business since 2008

Emergency services offered

Small jobs welcome

"Our technician, David was fabulous. I have changed my review because Jeremiah was able to make things right. The company definitely stood behind their work and I would highly recommend Mold Test Company for residential or business if you are having issues with mold. Thanks Jeremiah for everything"
Mold Inspection
Mold Inspection
Mold Inspection
Mold Inspection
Mold Inspection

+78

Response time1 day
290 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Rapid Mold Services, LLC
Rapid Mold Services, LLC
4.8(
23
)

Serving Naperville, IL and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

"I had a water heater leak that contaminated a 4x5 room with mold. RMS came over and thoroughly explained what they can do to fix it. They were punctual and also informative while they worked which made my wife comfortable with their work. The mold is gone and my family is safe. I would hire them again if ever needed."
Kitchen sealed off
Sink
Downtown Chicago
Downtown Chicago
Downtown Chicago

+2

Recommended by80%of homeowners
Avatar for Environmental Services Corp
Environmental Services Corp
5.0(
66
)

Serving Naperville, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"I was very pleased with the effort and communication that Max provided. He explained the whole process from start to finish. He also provided before and after pictures of where the mold was in the attic. I highly recommend this company for mold issues in your house."
Vermiculite insulation in attic
Asbestos Floor tile
Asbestos transite siding removal
Asbestos pipe
Insulation removal
Enclosure for asbestos removal

+56

Response time1 day
2 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for All The Way Home Inspections
All The Way Home Inspections
4.9(
12
)

Serving Naperville, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Small jobs welcome

"All the Way Home Inspections found dark staining in the attic of a home I was considering purchasing. They tested the area, confirmed it was mold, and provided clear information that helped me make an informed decision. While I ultimately chose to walk away from that property, I truly appreciated their thoroughness and professionalism. I’ll definitely use them again when I find my next potential home!"
Mold Inspection
Mold Inspection
Mold Testing Results
Mold Testing Results
Microscope Images

+2

Response time6 hrs
Response rate96%
Recommended by66%of homeowners
Avatar for Bone Dry LLC
Bone Dry LLC
4.8(
45
)

Serving Naperville, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Had good experience. I have addressed my concerns regarding our recent kitchen remodeling and Todd made sure to check everything and assure me if our house is fire hazard free."
Bathroom Mold
Basement Mold Restoration
Basement Mold Restoration
Basement Mold Restoration
Basement Mold Restoration

+2

Response time6 hrs
6 neighbors recently requested a quote
Recommended by88%of homeowners
...
Showing 1-10 of 106
FAQs for mold & toxic material test projects in Naperville, IL

Some companies offer a no‑cost phone or video consultation that screens for red flags. If the discussion points to a real issue, the pro will recommend a paid on‑site inspection. The complimentary call clarifies whether you need full testing, but it isn’t a substitute for samples, lab work, or a written report. Always confirm what the free service covers before you schedule.

A standard inspection, which includes basic air and surface samples, takes an average of two hours. If the pro needs to probe hidden spaces, such as wall cavities or ductwork, plan on up to six hours. Extra time allows the inspector to reach tight areas, collect additional samples, and document findings. Lab analysis is a separate process and often adds several business days to the overall timeframe before you receive the full report.

Mold thrives where moisture lingers and air flow is poor. Common hotspots include bathroom walls, kitchen backsplashes, window sills, HVAC vents, fireplaces, crawl spaces, and enclosed attics. Check these areas regularly—especially after leaks or high‑humidity weather—to catch growth early and avoid costly repairs.

Unchecked mold can knock 20% to 37% off a home’s market value because buyers worry about hidden damage and health risks. Even after remediation, visible staining or a history of major moisture issues can still lower offers and prolong the time on the market. Addressing mold quickly protects both your property’s structural integrity and its resale appeal.

The Naperville, IL homeowners’ guide to mold & toxic material tests

From average costs to expert advice, get all the answers you need to get your job done.