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

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 Fredericktown, MO 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
277 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for AC Environmental, Inc.
AC Environmental, Inc.
5.0(
14
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business+2 more

Serving Fredericktown, MO and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Given the awful circumstances (house fire), we had a great experience with AC Environmental. They were quick, courteous and professional. As with every service, problems can occur. How a company reacts to a problem says a lot to their commitment to the customer. There was a minor problem in removing our asbestos, I called AC Environmental and Dustin was out at our house resolving it within hours! I was surprised and very pleased."
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Response time10 hrs
Response rate99%
1 neighbors recently requested a quote
Avatar for Mold Medix, LLC
Mold Medix, LLC
4.8(
4
)
Mold & Toxic Material TestToxicity and Mold - Removal

Serving Fredericktown, MO and surrounding areas

In business since 2020

Free estimates

Emergency services offered

Mold Medix LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you! \nA little about our experience. We are partners with 18+ years of construction and 10 years of insurance claim handling experience. We offer peace of mind that work will be done right. We also can assist with evaluation of the water/microbial growth damages and claim consultation.

Response time30 mins
Response rate100%
Recommended by100%of homeowners
Avatar for Advanced Foundation Repair & Replacement
Advanced Foundation Repair & Replacement
5.0(
30
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Fredericktown, MO and surrounding areas

Emergency services offered

"I am writing this review to let other homeowners know that if they are unfortunately in need of foundation repair that the best company capable of handling the job is Advanced foundation repair & replacement. I have a two story home. The entire back and side wall had settled over six inches ( a total distance of seventy five feet). At the side of the house we have a masonry fireplace that had settled significantly as well. Then owner Frank Matyiko hooked up his exclusive unified jacking machine. Frank provided us with a licensed structural engineer that stamped all fazes of construction. He assured me that our house would be a piece of cake. He was right. Advanced leveled the back of my house along with the fireplace with his unified machine. Not a crack in the house. Not a crack in the fireplace. His team was polite courteous and most importantly fixed our problem. Price: $13,500. Thank you Frankie!!!!!"
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+2

Recommended by100%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Fredericktown, MO and surrounding areas

In business since 1971

Credit card accepted

"AHS is ok. They cover repairs of most everything under the roof of your house. The companies that contract with them are not always the best. You call AHS with the issue, they send a fax to the repair company and give you the contact info. If they don't contact you within 24 hours, you call them. Sometimes they answer, sometimes they don't. When they arrive (usually three days or so later), they service the item. if it has issues within the 90 days, you call AHS again, they are sent out with no charge. If the serviceman decides the unit is unrepairable, AHS will allow you to choose a replacement from their listing (usually not as good as what you have) they will install and remove your old item, or give you wholesale amount to buy and install your own. Prices vary on what you want covered and what you want the copay to be, plus where you live. For me it is 49.99 per month with a 75.00 time of service order. You can have more than one item serviced at the same time under the same fee. If you have a SEAR product the repair guys are great. Not that wild about the other ones they send out. But it is a big savings compared to calling someone on your own. The cost of service is only the 75.00 copay."
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+2

Recommended by65%of homeowners
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Mold Testing and Remediation FAQs, answered by experts

The most common sign of a carbon monoxide leak is the visible black soot marks on the walls near your wood stove. An excess accumulation of smoke in other rooms of your home could also indicate that your wood burning stove is leaking carbon monoxide. If you notice either of these signs or are still unsure, it’s best to leave the premises and contact your fire department to check your home’s levels. 

Mold can grow quickly in wet carpet: in as little as 12 to 24 hours. That’s why it is crucial to take action immediately if there’s any sign of water damage under your floor. Remove as much water as possible with a shop vac and towels, then use baking soda to help remove moisture deep in the fibers. Always steam clean the carpet or use an antibacterial carpet sanitizer to kill any mold growth.

Mold damage devalues a home in two ways: monetarily and emotionally. The numerical amount of mold damage devaluation can be 20% to 37%, which is substantial when house prices are often over $250,000. The second factor to consider is the emotional one: many buyers are hesitant to purchase a home that either has, or had, significant mold damage. For these reasons, it’s very important to deal with any mold issues immediately.

Mold grows in areas with humidity levels above 60%, but ideal conditions for mold growth occur when humidity is between 70% and 90%, especially in poorly ventilated areas. To prevent mold growth, aim to maintain indoor humidity levels between 30% and 50% using dehumidifiers, proper ventilation, and temperature control. Regularly check your home's humidity with a hygrometer to help you monitor and avoid conditions conducive to mold.

Mold is a blight on your home but over time, can be an extreme health risk, especially for immunocompromised individuals. Depending on the type of mold you’re dealing with, you could even experience neurological symptoms, or in extreme cases, you can be hospitalized. Even a tiny speck of toxigenic mold can cause a whole slew of very serious health issues. Deal with any mold issues immediately. 

The Fredericktown, MO 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.