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Find Mold & toxic material testers in Crystal Lake

Avatar for Bluestone Environmental Inc
Bluestone Environmental Inc
4.9(
202
)

Serving Crystal Lake, 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%
9 neighbors recently requested a quote
Avatar for AdvantaClean of Northwest Chicagoland
AdvantaClean of Northwest Chicagoland
5.0(
118
)

Serving Crystal Lake, 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%
1 neighbors recently requested a quote
Avatar for Gardner Services
Gardner Services
4.6(
15
)

Serving Crystal Lake, IL and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"This company is great to work with. They did some mold testing on parents’ home and did excellent work. They also did some work on my home. They replaced a water heater and bathroom fans. He was easy to get a hold of, personable and come over right away."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+18

Response time8 hrs
8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Bernhardt Restoration
Bernhardt Restoration
5.0(
23
)

Serving Crystal Lake, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1994

Emergency services offered

Credit card accepted

"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."
Response time9 hrs
Response rate100%
10 neighbors recently requested a quote
Avatar for Green Home Solutions - Chicago West Suburbs
Green Home Solutions - Chicago West Suburbs
4.9(
34
)

Serving Crystal Lake, 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 LaFrance Environmental
LaFrance Environmental
5.0(
7
)

Serving Crystal Lake, IL and surrounding areas

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."
Mold and Basement Leak
Mold and Basement Leak
Mold and Basement Leak
Response time5 hrs
Response rate100%
14 neighbors recently requested a quote
Avatar for Mold Test Company IL
Mold Test Company IL
3.8(
105
)

Serving Crystal Lake, 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
275 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Environmental Services Corp
Environmental Services Corp
5.0(
66
)

Serving Crystal Lake, 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
3 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for Gardner Environmental Services
Gardner Environmental Services
4.8(
263
)

Serving Crystal Lake, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Free estimates

Emergency services offered

"David called me shortly after I posted my service request with Angi and he made an appointment for the same day. He quickly understood my possible mold problem and conducted a thorough test. Meanwhile he told me what equipment to purchase in order monitor the moisture on the wood floor following the repair of the water leak. He send me the test results in 2 business days. Besides all that David is very personable and is available for follow-up questions."
Untitled Gallery 1
Untitled Gallery 1
Untitled Gallery 1
Untitled Gallery 1
Untitled Gallery 1

+20

Response time5 hrs
17 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Emerald Build Group
Emerald Build Group
5.0(
7
)

Serving Crystal Lake, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"I had Emerald Build Group come out for a mold inspection, and I’m really glad I chose them. The inspector was polite, knowledgeable, and took the time to explain everything in a way I could understand. He even pointed out a few things we hadn’t noticed ourselves. I felt very comfortable throughout the process. Would absolutely recommend them to anyone dealing with moisture or mold issues."
After Photos Condo
After Photos Condo
After Photos Condo
After Photos Condo
After Photos Condo

+68

Response time2 hrs
Response rate98%
1 neighbors recently requested a quote
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FAQs for mold & toxic material test projects in Crystal Lake, 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 Crystal Lake, 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.