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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon31
    Verified mold testing and remediation services reviews

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

Avatar for Illinois Mold Eradicator
Illinois Mold Eradicator
5.0(
51
)
Toxicity and Mold - Removal

Serving Markham, IL and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"I contacted them yesterday for Mold Remediation services. I would recommend reaching out to this company for this type of service. I spoke to the owner and he was kind enough to talk me through my problem over the phone. He was completely honest up front and told me how to solve this issue on my own without spending any money. The other 2 companies I called for this service wanted to charge me a large amount upfront and I would have ended up wasting a lot of money if I hadn’t spoke to the owner of Illinois Mold Eradicator. It’s hard to find honest people now a days, I would highly recommend anyone to use this company as their first choice!"
Additional Photos
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+67

Response time8 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Southside Mold Testing & Cleanouts
Southside Mold Testing & Cleanouts
4.9(
74
)
Mold & Toxic Material TestMold & Toxic Material Test - For BusinessToxicity and Mold - Removal+1 more

Serving Markham, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Emergency services offered

"My husband and I are writing to communicate to you a very positive interaction with Brian. His professional approach to mold remediation, which was mandatory in the conduction of the sale of our home, displayed a knowledgeable background, as he also educated my husband and myself, as to the mold clean-out process. His service was stellar!?"
Response time7 hrs
Response rate95%
Recommended by81%of homeowners
Avatar for Rapid Mold Services, LLC
Rapid Mold Services, LLC
4.8(
27
)
Indoor Air Quality TestingMold & Toxic Material Test

Serving Markham, IL and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

"Rapid mold services and Augustin were absolutely amazing!!! We had extensive mold in our kitchen and they worked endlessly to remediate it all while keeping costs as low as possible. They worked in a timely manner, kept us up to date and educated through everything they did, and had excellent communication. I would recommend them time and time again!"
Kitchen sealed off
Sink
Downtown Chicago
Downtown Chicago
Downtown Chicago

+2

Recommended by68%of homeowners
Avatar for MOLD REMOVAL & SOLUTIONS LLC
MOLD REMOVAL & SOLUTIONS LLC
5.0(
17
)
Toxicity and Mold - RemovalIndoor Air Quality TestingMold & Toxic Material Test+1 more

Serving Markham, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Emergency services offered

Warranties offered

"I had a water leak from my ice maker. The water line had a pin size hole in it and was leaking downward thru the floor. Once I realized the issue. I had a 6x6 section of flooring to be replaced. I also had sub-flooring, drywall and insulation that needed to be replaced. My insurance suggested I bring in a specialist. Because of the potential of mold. I called Patrick at Mold Removal & Solutions. Patrick came to the house the same day and gave me a quote. A couple days later Patrick started working and was finished in about three days. This is the second time I used Mold Removal and Solutions. Patrick and his crew were always on time and professional. I would recommend Patrick to anyone."
Response time3 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Mold Test Company IL
Mold Test Company IL
3.8(
106
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Markham, IL and surrounding areas

Approved

In business since 2008

Emergency services offered

Small jobs welcome

"My review is tiered because the overall service seems to run on tiers. The technician was great. Very personable and professional. 5 stars for his work. Your tests get sent to the lab. The lab explains the results and recommends a company for a DIY solution. This is where things start to fall apart. The company you get referred to has abysmal reviews and the sales pitch feels extremely predatory. That taints my opinion of the lab results which would be teamed up with a business they probably shouldn't recommend. We're planning on either an independent company locally to get a quote from for any remediations we will take or even see what home depot has to offer. In any event please read the reviews of BioCide, the company they will recommend you use. We're still not sure we even have a real problem if they are working together."
Mold Inspection
Mold Inspection
Mold Inspection
Mold Inspection
Mold Inspection

+78

Response time1 day
281 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for GCPRO
GCPRO
4.7(
15
)
Toxicity and Mold - RemovalDry-rot, Water or Pest Damage - Major Repair

Serving Markham, IL and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"The HVAC unit in the condo above us leaked and caused extensive water damage in one of our bedrooms. The GCPRO Team came out and took care of everything! Their skill and professionalism really helped us dial down our anxiety over the entire situation! The attached picture: "No more moisture thumbs up!" We *highly* recommence GCPRO! ."
Helen Berkun – The Entire Facade Of The House
Green Oaks Apartments 🚧Reconstruction🚧 in Palos Hills
Helen Berkun – Bathroom Reveal
🚧Transforming🚧 spaces into modern and elegant interiors in St. Charles
Reconstruction After Water Damage on Montana Street, Chicago

+344

Response time11 hrs
Response rate100%
4 neighbors recently requested a quote
Avatar for HydroForce Cleaning Systems
HydroForce Cleaning Systems
4.5(
17
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Markham, IL and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"They came, they saw, and they conquered! I had a sewer back-up in the utility room of my home, and had put kitty-litter to help absorb backup. Although it initially helped, it created its own mess when even more had to be put down because of additional backup. To be honest, wasn't sure if HydroForce was up to the task, especially when they had to finish up on another day. But, HydroForce proved not only to be up to the task. but did an awesome job! They cleared, cleaned, and disinfected the floor and the surrounding appliances to the point they would be affected by the back-up. The only thing I did expect that wasn't done was the use of an air scrubber or purifier because of mold/mildew concerns with water backup. However, the job they did was impressive and I will recommend them for future use."
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+12

1 neighbors recently requested a quote
Recommended by100%of homeowners
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Mold Testing and Remediation FAQs, answered by experts

Yes, mold in the basement of your home will affect the conditions upstairs. Mold spores can travel through the air and into the supply vents of your home’s ventilation system. It is extremely important to remove any mold in your basement as soon as possible so it doesn’t affect the health of those living in the house.

No, not all black mold is toxic. Although people often refer to stachybotrys chartarum as toxic black mold, there is little evidence that any one type of black mold has more toxicity than another. People who have an allergy to black mold would be more likely to have a dangerous reaction after inhaling it. Long-term exposure to black mold spores can lead to severe infection and disease. Some people only have minor health problems after black mold exposure. Ultimately, toxicity is rare with any kind of mold, but it is possible, so always take the appropriate precautions.

The primary difference is that black mold (Stachybotrys chartarum) is considered toxic and more dangerous than regular mold. It can produce harmful chemicals called mycotoxins, which may lead to severe health issues like respiratory problems, skin irritation, headaches, and other long-term complications. While regular mold is rarely toxic, it can still cause allergic reactions and respiratory irritation. Visually, black mold often appears dark—green, gray, brown, or black—with a fuzzy texture, whereas regular mold can be almost any color. Black mold is less common and typically grows in areas with severe water damage. Regardless of the type, you should not ignore any mold infestation in your home.

The answer to whether it’s safe to use a moldy dishwasher is: It depends. Mold exposure affects people differently. It’s possible that even a small amount of mold in your dishwasher could contribute to respiratory issues and other health problems, especially if you have an underlying health condition. Mold is capable of surviving the high heat and detergent used in a dishwasher cycle, so it’s important to ensure that you act quickly at the first sign of mold, or contact a house cleaner near you to stay on top of any potential mold problems.

Yes, by identifying allergens and implementing measures to mitigate exposure.

The Markham, 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.