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Find Mold & toxic material testers in Naperville

Avatar for Great Environmental, Inc.
Great Environmental, Inc.
5.00(
42
)

Angi Approved

In business since 2005

Customers say: Quality work

"Excellent! It is a Family owned business. Matt is very personable and explained everything with the whole process. I needed someone right away, and he genuinely seemed like he wanted to help. He fit us in his schedule immediately, even right before Memorial weekend. We got results very quickly, within 2-3 days and we were able to move along closing on our house. I would definitely recommend them as well as the testing for your home."
9 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Bernhardt Restoration
Bernhardt Restoration
4.95(
19
)

Angi Approved

Super Service Award Winner

In business since 1994

Emergency services offered

Customers say: Quick response

"I recently had Bernhardt Restoration handle mold remediation in my home, and I couldn’t be more impressed. From start to finish, the experience was outstanding. The remediation specialists who came out were true professionals—they arrived on time, worked efficiently, and demonstrated a level of craftsmanship that is rare to find these days. Their workmanship was meticulous, and it gave me complete peace of mind knowing the job was done right. Beyond just solving the problem, they showed respect for my home and my time, which made the entire process seamless. I will absolutely use Bernhardt Restoration again in the future and have no hesitation recommending them to anyone in need of mold remediation or bathroom restoration work. They are reliable, professional, and deliver results of the highest quality."
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Green Home Solutions - Chicago West Suburbs
Green Home Solutions - Chicago West Suburbs
5.00(
1
)

Angi Approved

In business since 2019

Emergency services offered

Warranties offered

Green Home Solutions - Chicago West Suburbs is committed to excellence in every aspect of our business. \n\nGreen Home Solutions - Chicago West Suburbs is committed to excellence in every aspect of our business. Why Choose Green Home Solutions? Here are the advantages of our Indoor Air Quality Services! - Affordable: Typically, we can preserve more of your existing building materials which can reduce costs.- Effective: Our licensed and/or certified representatives determine the source of the mold, mildew or odor problem and treat it. Our product is catalytic, which means it keeps on working.- EPA plant based organic registered Products: We don’t use harsh chemicals. The health and safety of your family is always our goal. The products we use in our services are selected with that in mind. - Fast: We can complete mold remediation in days not months. This is a fraction of the time it usually takes our competitors.\n\n-Effective: 100% Kill Rate for mold, odor and VOC's. \n\n- Happy Customers: 98.8% Customer Satisfaction

1 neighbors recently requested a quote
Avatar for LaFrance Environmental
LaFrance Environmental
5.00(
6
)

Angi Approved

In business since 2024

Free estimates

Emergency services offered

"I had Brett come to our home to test for mold because I’ve had an ongoing illness that Drs can never diagnose. He was so caring & did the testing within days of talking to him the 1st time. After the testing, he explained everything in detail and provided a list of things to improve the air quality in the home. I have never dealt with any type of contractor that was as thorough and really had our best interest at heart. He was honest, upfront with cost and I felt like I could totally trust him and his recommendations. If you are in need of mold or air quality testing, call Brett. You will be completely satisfied with his knowledge and care to make your home “healthy” again. "
1 neighbors recently requested a quote
Avatar for AdvantaClean of Northwest Chicagoland
AdvantaClean of Northwest Chicagoland
4.97(
105
)

Angi Approved

Super Service Award Winner

In business since 1994

Free estimates

Emergency services offered

"Patryk and Mathew were excellent and very professional! Excellent work ethic, communication and very thorough job! Looks 100% better and feels clean…. Never saw a clean attic until today! Excellent job! Highly recommend this company and these technicians!"
2 neighbors recently requested a quote
Recommended by98%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.