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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon40
    Verified mold testing and remediation services reviews

Top-Rated Mold testing and remediation specialists in Johnsburg - Updated Nov 2026

Avatar for AdvantaClean of Northwest Chicagoland
AdvantaClean of Northwest Chicagoland
5.0(
128
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business+2 more

Serving Johnsburg, IL and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

AdvantaClean of NW Chicagoland specializes in residential and commercial emergency water damage restoration, mold remediation, moisture control, and specialty cleaning services. \n \nWhether you are dealing with unexpected water damage, mold concerns, moisture problems in your basement or crawlspace, attic issues, or indoor air quality concerns, our experienced team is here to help. We focus on clear communication, thorough work, and detailed documentation so you can feel confident in the work being completed on your property. \n \nOur services include emergency water mitigation and structural drying, mold remediation, basement waterproofing, crawlspace encapsulation, attic remediation, insulation removal, air duct cleaning, and small particle cleaning. \n \nLocally owned and operated, proudly serving homeowners and businesses throughout NW Chicagoland. We look forward to working with you!

Recommended by86%of homeowners
Avatar for Green Home Solutions - Chicago West Suburbs
Green Home Solutions - Chicago West Suburbs
4.9(
34
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Johnsburg, IL and surrounding areas

Approved

In business since 2020

Emergency services offered

Warranties offered

"They performed mold remediation, duct cleaning, and whole house deodorizing. I am happy with his services. Not only is the mold gone, the house smells better, and the ductwork functioning more efficiently, but he also left no mess and was very careful with regards to the new carpeting and leaving it clean."
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 Gardner Services
Gardner Services
4.7(
17
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business+2 more

Serving Johnsburg, 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 time7 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for LaFrance Environmental
LaFrance Environmental
5.0(
7
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Johnsburg, 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%
23 neighbors recently requested a quote
Avatar for Emerald Build Group
Emerald Build Group
5.0(
7
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business+2 more

Serving Johnsburg, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"I had an excellent experience working with this company for my basement and master bedroom renovations. Their team was professional, reliable, and highly skilled. The basement was transformed into a functional and modern space, while the master bedroom now feels like a luxurious retreat. They completed the work on time and within budget, paying attention to every detail to ensure the results exceeded my expectations. The communication throughout the process was clear and consistent, making the entire experience stress-free. I highly recommend them for anyone looking for top-quality construction and remodeling services!"
After Photos Condo
After Photos Condo
After Photos Condo
After Photos Condo
After Photos Condo

+68

Response time2 hrs
Response rate100%
1 neighbors recently requested a quote
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Mold Testing and Remediation FAQs, answered by experts

Drywall can be toxic to the environment and to humans in some cases. As drywall breaks down in a landfill and comes in contact with other organic chemicals, it can create hydrogen sulfide gas or leach into the groundwater. Additionally, the CDC recommends methods for controlling the inhalation of drywall dust when handled. While the common ingredients of drywall—gypsum, silica, and mica—are naturally occurring, they can cause irritation in some humans.

Mold and mildew are the things in basements that actually cause the musty odors, but moisture is the underlying issue that causes mold and mildew growth. Addressing moisture and water problems and then removing materials that are moldy are some of the best ways to get rid of the musty odors. Preventive measures after that—like installing air fresheners and a dehumidifier—can help keep musty odors from returning.

Yes, if installed correctly. Moisture barrier padding blocks dampness from reaching the padding core and subfloor, where mold loves to grow, especially in humid environments like basements. However, poor installation with gaps or loose seams can do the exact opposite, trapping moisture and creating mold problems. So, make sure to do your installation carefully or hire a professional.

Mushrooms do not harm your yard. In fact, they can actually help improve your lawn health by decomposing woody organic matter in your soil, and breaking it down into nutrients that feed your grass and plants.

In most cases, it's not worth the risk of buying a home with mold. You should carefully weigh the pros and cons before making a decision—and there are far more drawbacks than benefits. For one, buying a house with mold opens you up to health risks since mold can cause respiratory and allergic reactions. If the mold is widespread throughout the home, the cost to completely remove it, make necessary repairs, and prevent it from returning is often not worth the cost savings of buying a mold-infested home for a bargain.

The Johnsburg, IL homeowners’ guide to mold testing and remediation services

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