4.6 
35 *The Angi rating for Mold Testing And Remediation companies in Weldon Spring, 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 Weldon Spring, 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 February 10, 2026
Serving Weldon Spring, 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 Weldon Spring, 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 Weldon Spring, MO and surrounding areas
Approved
In business since 2008
Emergency services offered
Small jobs welcome
"Overall was good for what the service is. The technician was a postal worker and home inspector. So mold test company appears to be brokers. Their pricing was competitive from other quotes I received but I honestly think it was pricey for time spent and what they do. But like I said the price was pretty standard from the companies I called, in my opinion. But the technician was attentive and knowledgeable, and friendly."
+78
Serving Weldon Spring, 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 Weldon Spring, 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 Weldon Spring, 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 Weldon Spring, MO and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"They did a good job and would hire again if needed. Also great communication."
+22
Serving Weldon Spring, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2018
Free estimates
Emergency services offered
"I called on Thanksgiving day and Chad (owner) responded that day and was able to come out to assess the issue the next day. He and his crew were very respectful of our belongings that had to be moved to deal with the mold. I would hire them again."
Serving Weldon Spring, MO and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
Professional Environmental Consulting Services specializing in asbestos inspections/testing, mold inspections, and indoor air quality testing for residential, commercial, and demolition projects. Reliable, thorough, and compliant inspections to help keep your property safe and meet local and state regulations. Contact us today for fast scheduling and expert service.
+9
Serving Weldon Spring, 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.
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