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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

"Is this business even open any more? I've tried calling several times and the phone rings twice and then there is silence. There is an option to contact them on their website, but when I leave my info and click submit, nothing happens. Can anyone recommend another service similar to this one? The mold smell is coming out of my hvac ducts again. I'm in the Joliet area ."
"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
7 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%
11 neighbors recently requested a quote
Avatar for AdvantaClean of Northwest Chicagoland
AdvantaClean of Northwest Chicagoland
5.0(
118
)

Serving Naperville, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1994

Free estimates

Emergency services offered

"Working with Advantaclean on mold remediation project was a nice experience. We noticed mold in patches in our bathroom, Advantaclean they worked on this mold remediation project and the end result, mold free bathroom. After they completed their work also did post test and result came negative. The crew worked on this project are very professional and they did the job nicely. I would highly recommend using them for any mold remediation needs. Thanks to JT, Kaitlyn, Ian and the crew who worked on this project."
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%
2 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

"It was a pleasure working with Jim and Green Home Solutions to get rid of the mold in my basement. Jim was personable, considerate and efficient. I heartily endorse them and would not hesitate to recommend them."
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

"Overall was good for what the service is. The technician was a postal worker and home inspector. So mold test company appears to be brokers. Their pricing was competitive from other quotes I received but I honestly think it was pricey for time spent and what they do. But like I said the price was pretty standard from the companies I called, in my opinion. But the technician was attentive and knowledgeable, and friendly."
Mold Inspection
Mold Inspection
Mold Inspection
Mold Inspection
Mold Inspection

+78

Response time1 day
272 neighbors recently requested a quote
Recommended by80%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

"We were concerned that our home had mold after we had a leak from the bathroom. I hired All the Way Home Inspections for mold testing and was relieved to know that no abnormal mold growth was detected. The service was fast, professional, and reasonably priced compared to other quotes we received. I would definitely hire them again."
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
12 neighbors recently requested a quote
Recommended by88%of homeowners
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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.