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
)
Mold & Toxic Material Test

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
9 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for OMG Sanitized, Inc.
OMG Sanitized, Inc.
4.8(
29
)
Mold & Toxic Material Test

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 AdvantaClean of Northwest Chicagoland
AdvantaClean of Northwest Chicagoland
5.0(
121
)
Mold & Toxic Material Test

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%
3 neighbors recently requested a quote
Avatar for Mold Test Company IL
Mold Test Company IL
3.8(
106
)
Mold & Toxic Material Test

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
268 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Green Home Solutions - Chicago West Suburbs
Green Home Solutions - Chicago West Suburbs
4.9(
34
)
Mold & Toxic Material Test

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 Environmental Services Corp
Environmental Services Corp
5.0(
67
)
Mold & Toxic Material Test

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
Response rate100%
1 neighbors recently requested a quote
Avatar for Bone Dry LLC
Bone Dry LLC
4.8(
45
)
Mold & Toxic Material Test

Serving Naperville, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Todd is extremely knowledgeable and thorough, reveals defects in remarkable detail yet without undue emphasis over the gravity or urgency to remediate those that do not warrant it, and has a winning personality that one might suppose might even qualify him for his own TV show on home inspections."
Bathroom Mold
Basement Mold Restoration
Basement Mold Restoration
Basement Mold Restoration
Basement Mold Restoration

+2

Response time7 hrs
3 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Zero Mold
Zero Mold
4.8(
41
)
Mold & Toxic Material Test

Serving Naperville, IL and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"Excellent Michael and Jacob from zero mold were highly professional and explained the process in easy to understand language. Price, warranty and work ethics was unmatched. Go zero mold. It will be a pleasure to recommend Zero Mold"
Post mold removal
Zeromold using its smart dry fog to eliminate mold spores in a home
Water and fire damage
Zeromold emerge to help family.
Mold Testing & Remediation Project

+79

Recommended by95%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.