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

Avatar for Claro Complete Mold Remediation - St. Louis
Claro Complete Mold Remediation - St. Louis
4.8(
76
)
Toxicity and Mold - RemovalMold & Toxic Material Test - For BusinessToxicity and Mold - Removal - For Business

Serving Augusta, MO and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

At Claro - Complete Mold Remediation - St. Louis, we believe a healthy home starts with the air you breathe. We help families and businesses find mold, fix it at the source, and feel at home again. We serve St. Louis, Clayton, Ladue, Kirkwood, Webster Groves, Creve Coeur, Chesterfield, Ballwin, St. Charles, O’Fallon and surrounding areas. Our services include mold inspection, lab-based mold and air testing with same-day assessments, whole-home and crawlspace mold remediation, water damage cleanup, and commercial mold remediation. \n\nEvery job follows a source-first process: containment, moisture correction, physical removal of contaminated materials, structural drying, and a whole-home dry fog treatment that reaches hidden spores in walls, vents and crawlspaces. We work directly with your insurance company and build every plan around your home and the people living in it.

4 neighbors recently requested a quote
Recommended by84%of homeowners
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 Augusta, 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
273 neighbors recently requested a quote
Recommended by80%of homeowners
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 Augusta, MO and surrounding areas

Approved

In business since 2008

Emergency services offered

Small jobs welcome

"Mr Henry Smith was on time, very professional at what he does he not only expained to me what was going on he made sure he answered all of my questions and concerns talking to him about my experience in my home he understood me he was able too show me areas around the outside of my home and pin point the possibility of how and,where the problems occurred I learned a lot mist of all always have my home tested before moving in this would savee and my love ones alot of health issues pain and suffering in the future I would highly recommend the mold testing company to any and everyone who needs assistance with mold it is so worth it thanks Mr Henry Smith and the molding company"
Mold Testing
Mold Testing
Mold Testing
Mold Testing
Mold Testing

+70

22 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for MCC Cleaning & Restoration
MCC Cleaning & Restoration
4.4(
183
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Augusta, MO and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Had water damage from basement flooding. They came in did their thing and cant even tell there was damage. Employees are very kind, finished on time and cleaned up their mess. High recommend!"
Air Duct Cleaning
Air Duct Cleaning
Air Duct Cleaning
Air Duct Cleaning
Air Duct Cleaning

+22

Response time2 days
1 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Scope Environmental
Scope Environmental
5.0(
15
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Augusta, MO and surrounding areas

In business since 2023

Free estimates

Small jobs welcome

"We hired Jeff to give us pre and post mold remediation air quality tests, and I am so glad we did. Jeff was extremely knowledgeable and had no conflict of interest on the outcome of the results since we had a different company doing the remediation. We actually had to go back to the mold remediation company when his air quality report did not pass clearance, and he was our chief advocate in getting the company to come back and do further remediation. He has been a great to work with because he is not only an expert but is a caring individual, and I would recommend anybody use his services. He also is licensed to test for asbestos, which is our next project before we remove our popcorn ceiling!"
Black mold inside closet
Mold growth in HVAC Closet
Asbestos Flooring
Floor sample collection
Asbestos Adhesive

+10

Response time4 hrs
Response rate96%
Recommended by73%of homeowners
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Mold Testing and Remediation FAQs, answered by experts

Yes, it is common for mold to grow on the underside of the siding due to the moist atmosphere. When there is an abundance of moisture, mold has the ideal environment to spread and thrive. This fungus can be found on virtually any surface, both indoors and outdoors. Generally, it is most active when the environment is warm, damp, and humid.

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 can grow on garage ceiling insulation, which is why it’s important to install a vapor barrier behind the insulation and keep the space cooled and heated as you would your living area. Doing so will more or less eliminate the risk of mold growing on your garage ceiling insulation. You can also install a self-draining dehumidifier to help remove moisture, or opt for a foam board insulation or spray foam insulation that won’t harbor moisture and mold.

The spread of wood rot results in a physical breakdown of the wood’s cellulose and lignin, causing it to become spongy or brittle. This can lead to structural damage. Water won’t damage the physical structure of the wood, while mold can eat away at the material and cause structural damage over a much longer timeframe. When further considering water damage versus mold versus wood rot, all three issues can create a musty or damp odor in the area. All three can also cause discoloration of the wood.

Mold in HVAC ducts is a relatively common issue that homeowners struggle with—especially in humid climates or homes with poor ventilation. Moisture from condensation, combined with dust and organic debris, creates the perfect environment for mold growth. Homes with high humidity, leaky ducts, or clogged drains are more prone to this issue. Regular inspections and proper HVAC maintenance significantly reduce the risk of mold developing in your ducts.

The Augusta, MO homeowners’ guide to mold testing and remediation services

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