4.6 
39 *The Angi rating for Mold Testing And Remediation companies in Cottleville, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Mold Testing And Remediation needs.
*The HomeAdvisor rating for Mold Testing And Remediation companies in Cottleville, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Mold Testing And Remediation needs.
Last update on September 17, 2026
Serving Cottleville, MO and surrounding areas
Approved
In business since 2017
Emergency services offered
Small jobs welcome
"Steve was very prompt and courteous. He was also very knowledgeable. I would recommend him to anyone that has a mold problem,"
Serving Cottleville, MO and surrounding areas
Approved
In business since 2022
Free estimates
Warranties offered
"Mold One found the problem that was causing my son to wake up congested! Mold One was great to work with!"
+4
Serving Cottleville, 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."
+78
Serving Cottleville, MO and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"They got in, got out and provided detailed results. Answered questions and very knowledgeable. Would definitely use again and highly recommend."
Serving Cottleville, MO and surrounding areas
Approved
In business since 2008
Emergency services offered
Small jobs welcome
"Jeremiah came out and tested the air and moisture and other items to determine if I had mold in my basement. After getting the test results there was evidence of mold and he recommended a company that provides a do it yourself kit for mold remediation. (Not cheap). After getting the items and realizing that there was more work, it would have been better for me to let my insurance company handle this as I do have coverage for mold/fungi. Though having a professional do the work is expensive, from what Jeremiah mentioned, it does not guarantee that the work will be complete or the source of the problem taken care of. He mentioned most companies will take care of the mold but not necessarily the cause of the mold. For this I would have to contact another company."
+70
Serving Cottleville, MO and surrounding areas
Approved
In business since 2001
Free estimates
Warranties offered
"Quacker's made the entire process incredibly easy. From beginning to end, they were super informative, kind, quick to get the job done and reasonably priced. Thank you so much!"
+1
Serving Cottleville, MO and surrounding areas
Approved
In business since 2018
Free estimates
Offers commercial services
"Mike is a great guy to do business with. His associate Tom did an excellent job in remediating mold from my house. They both are professional and friendly. I highly recommend them."
Serving Cottleville, MO and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"These folks were outstanding! Very easy to set up an appointment and the service itself was great. They cleaned the air ducts, showed me photos of the work, and even helped with some air flow issues I was having. They went above and beyond. I highly recommend them."
+22
Serving Cottleville, MO and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"Tyfanie was professional and knowledgeable."
+9
Serving Cottleville, MO and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
"Very professional but friendly and helpful."
+5
From average costs to expert advice, get all the answers you need to get your job done.
Mold remediation costs in St. Louis, MO can quickly escalate. But if you have mold in your home, mold remediation is worth it.
Mold remediation cost can quickly escalate. But if you have mold in your home, the cost for mold remediation is worth it.
The cost of a mold inspection might seem high, but it’s one of the best investments you can make for your health and home. Read on to learn cost-saving tips.
Figuring out how to test for mold in your home is important. Mold testing can offer peace of mind and lets you know if it’s time to call a pro. Learn about mold testing processes in this guide.
When is mold remediation required at your home? We can help you decide whether the musty odor or the patch of mold you’re experiencing requires a pro’s help.
Mold is not a sight we’re happy to find, but use these mold remediation tips to help eradicate a problem before it gets out of control.
