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TRUSTED BY WELDON SPRING, MO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon35
    Verified mold testing and remediation services reviews

Verified Reviews for Mold Testing And Remediation pros in Weldon Spring, MO

*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 December 31, 2025

Find Mold testing and remediation specialists in Weldon Spring

Avatar for The Mold Consultant
The Mold Consultant
4.9(
22
)
Mold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Weldon Spring, MO and surrounding areas

Approved

In business since 2017

Emergency services offered

Small jobs welcome

"They responded very quickly and sounded very knowledgeable. The test results were sent the following day. This is a minor thing but the inspector talked in technical terms which I did not understand. I wish he could have explained more. However, on the report I received all the technical terms were clearly defined in a way I could understand. A suggestion would be to provide the customer with the explanation of thes terms at the time if the inspection or talk to the customer in terms they can understand."
Response time6 hrs
Response rate97%
4 neighbors recently requested a quote
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Avatar for Mold One Missouri
Mold One Missouri
4.8(
20
)
Mold & Toxic Material TestToxicity and Mold - RemovalIndoor Air Quality Testing+2 more

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!"
Total Home sterilization
bedroom
bathroom drains
moisture intrusion
black mold

+4

Response time11 hrs
Response rate96%
129 neighbors recently requested a quote
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Avatar for Mold Test Company IL
Mold Test Company IL
3.8(
105
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Weldon Spring, 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
291 neighbors recently requested a quote
Recommended by80%of homeowners
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Avatar for Mold Test Company MO
Mold Test Company MO
3.8(
83
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Weldon Spring, MO and surrounding areas

Approved

In business since 2008

Emergency services offered

Small jobs welcome

"They are doing tests and we await results."
Mold Testing
Mold Testing
Mold Testing
Mold Testing
Mold Testing

+70

23 neighbors recently requested a quote
Recommended by82%of homeowners
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Avatar for AC Environmental, Inc.
AC Environmental, Inc.
5.0(
14
)
Mold & Toxic Material TestToxicity and Mold - RemovalIndoor Air Quality Testing+2 more

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."
Additional Photos
Additional Photos
Additional Photos
Response time10 hrs
2 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for Quacker's Waterproofing & Basement Repair, LLC
Quacker's Waterproofing & Basement Repair, LLC
4.7(
167
)
Mold & Toxic Material Test

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!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

13 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for MCC Cleaning & Restoration
MCC Cleaning & Restoration
4.4(
183
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

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."
Air Duct Cleaning
Air Duct Cleaning
Air Duct Cleaning
Air Duct Cleaning
Air Duct Cleaning

+22

Response time2 days
3 neighbors recently requested a quote
Recommended by87%of homeowners
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Avatar for Eversafe Restoration
Eversafe Restoration
4.7(
15
)
Toxicity and Mold - RemovalDry-rot, Water or Pest Damage - Major RepairMold & Toxic Material Test - For Business+1 more

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."
Response time7 hrs
Response rate86%
20 neighbors recently requested a quote
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Avatar for Allied Environmental, LLC
Allied Environmental, LLC
5.0(
5
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business

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.

Exterior of Home
Interior
Interior of Building
Interior of Building
Commercial Building

+9

3 neighbors recently requested a quote
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Avatar for Voda Cleaning & Restoration of St. Louis
Voda Cleaning & Restoration of St. Louis
5.0(
7
)
Mold & Toxic Material TestToxicity and Mold - RemovalMold & Toxic Material Test - For Business+1 more

Serving Weldon Spring, MO and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Very professional but friendly and helpful."
Carpet Cleaning
Post Carpet Cleaning
Pre Carpet Cleaning
Grease Fire
Stained

+5

Response time3 hrs
43 neighbors recently requested a quote
Recommended by42%of homeowners
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Mold Testing and Remediation questions, answered by experts

Mold on windows forms due to excess moisture from condensation, poor ventilation, or leaks. Cold glass surfaces can attract condensation, especially in winter. High indoor humidity, lack of airflow, or dust accumulation are also contributors. To prevent mold growth, improve ventilation, regularly clean sills, and consider using a dehumidifier or sealing any leaks.

Costs depend on test type, home size, number of testing locations, and whether follow-up testing is required.

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.

Slime mold can thrive for weeks or months in the perfect environment, but that rarely occurs. The mold will typically die within a week of you noticing it. However, it could be dead long before it disappears, and since it’s safe to handle, it’s easier to get rid of it all at once. This eliminates its chance to spread, and also won’t leave you looking at decaying slime mold.

Yes, a one-time water leak can cause mold. Depending on the conditions, mold can begin to grow within 12 to 48 hours. The risk increases with the severity of the leak, high humidity, and when water soaks into absorbent materials like drywall. To prevent mold growth, stop the leak immediately and ensure the area is dried completely; running a blower fan for 24 hours is recommended. If you do notice mold, it's best to call a mold removal specialist to address the situation.

The Weldon Spring, 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.

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