Professional Crawlspace mold remediation

Most people never think about their crawlspace—until mold shows up. Moisture and poor ventilation make it a breeding ground that can spread into your main living space. Claro’s demolition-free treatment stops mold at the source and keeps it from getting worse.
4.9
(30 reviews)

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(615) 486-2217

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Why Is Claro Number #1 Choice For crawlspace remediation?

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We Treat the air AND the crawlspace surface

Before any treatment starts, we identify what's driving the moisture in your crawlspace. A vapor barrier issue, poor drainage, ground moisture, whatever is feeding the mold gets corrected first. Then we treat.
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Dramatically more affordable

Because our fog fills the entire crawlspace, we don't need large crews or manual surface-by-surface treatment — which keeps costs down without cutting corners.
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Demolition-free and mess-free

No construction, no tear-outs—just a safe, EPA Safer Choice-certified treatment that gets the job done without disrupting your home.
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Transparent pricing with no surprises

We price based on square footage and condition, with transparent quotes and no upsells.
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Pre-sale crawlspace remediation

Most crawlspace calls come from sellers facing a delayed closing due to found mold. We specialize in urgent, pre-sale remediation and get things back on track quickly.
everywhere

1,000s now living or working mold-free

After testing positive for mold in my body, another company told me there was no issue — but Claro's inspection found mold in my decorative pillows and under my sinks that a standard air test completely missed. After a full home sanitization, our whole family was breathing better than we had in 8 years. Can't recommend them enough!

Kelli B

Nashville, TN
I had a great experience with Claro St. Louis. Their team was professional, thorough, and explained everything clearly. I’m really grateful for the quality of their work and highly recommend them to anyone dealing with mold issues!

Monica A

St. Louis, MO
We recently had Nick of Claro - Complete Mold Remediation consult us on our crawlspace and we were very impressed with his expertise. He conducted an air quality test of our house using brand new technology/equipment. He quickly put any concerns we had about mold issues to rest with these precise measurements. We would recommend him to anyone who is looking to understand how to make their home healthy and safe.

Joyce M

Murfreesboro, TN
Claro – Complete Mold Remediation was incredibly responsive and knowledgeable throughout the entire process. From Nick, the owner, to Jason, our technician, it was clear that everyone on the team takes real pride in their work. They were professional, helpful, and made the whole experience easy.

Thomas H

Nashville, TN
Professional, courteous, patient, and thorough! During recent repairs, a serious mold infection was discovered.  My whole house was treated without the need to tear out walls just to find mold. The treatment even took care of any mold infection my HVAC system. I would not hesitate to recommend Claro to anyone. 10/10, no notes!

Lynch O

Franklin, TN
Jamal treated my house today and was fantastic about answering all my questions. Everyone has been so professional and friendly. With the expectation that I will soon feel better from a clear air quality, I will be recommending this company to all of my family and friends who may be sensitive to mold as I know how difficult it can be to get rid of!

Michelle D

Atlanta, GA
I used Claro for mold remediation 1 month ago. We found mold growing around a bathroom vent. We had them clean up the growth on the ceiling and perform a full house duct cleaning. I have a large house with a lot of vents so the price was very fair! They were able to perform a large job in 2 days. Now, one month later and I must admit my "mild allergies" are gone, no scratchy throat. I am very impressed with this company and Nick's attention to us when we called upon them.

Ariana B

Antioch, TN
The first of its kind here in town. So great to have a safe mold remediation option in STL. There is nothing better you can do for the health of your family than making sure your house is mold-free! They offer mold inspections and make it easy.

Margaret H

Brentwood, MO
After testing positive for mold in my body, another company told me there was no issue — but Claro's inspection found mold in my decorative pillows and under my sinks that a standard air test completely missed. After a full home sanitization, our whole family was breathing better than we had in 8 years. Can't recommend them enough!

Kelli B

Nashville, TN
I had a great experience with Claro St. Louis. Their team was professional, thorough, and explained everything clearly. I’m really grateful for the quality of their work and highly recommend them to anyone dealing with mold issues!

Monica A

St. Louis, MO
We recently had Nick of Claro - Complete Mold Remediation consult us on our crawlspace and we were very impressed with his expertise. He conducted an air quality test of our house using brand new technology/equipment. He quickly put any concerns we had about mold issues to rest with these precise measurements. We would recommend him to anyone who is looking to understand how to make their home healthy and safe.

Joyce M

Murfreesboro, TN
We had a great experience with Claro Complete Mold Remediation from start to finish. The team was quick to respond and clearly knew their stuff at every stage. Nick, the owner, and Jason, our technician, were both professional and genuinely helpful, and it was obvious the whole crew takes pride in doing the job right.

Thomas H

Nashville, TN
Professional, courteous, patient, and thorough! During recent repairs, a serious mold infection was discovered.  My whole house was treated without the need to tear out walls just to find mold. The treatment even took care of any mold infection my HVAC system. I would not hesitate to recommend Claro to anyone. 10/10, no notes!

Lynch O

Franklin, TN
Jamal treated my house today and was fantastic about answering all my questions. Everyone has been so professional and friendly. With the expectation that I will soon feel better from a clear air quality, I will be recommending this company to all of my family and friends who may be sensitive to mold as I know how difficult it can be to get rid of!

Michelle D

Atlanta, GA
I used Claro for mold remediation 1 month ago. We found mold growing around a bathroom vent. We had them clean up the growth on the ceiling and perform a full house duct cleaning. I have a large house with a lot of vents so the price was very fair! They were able to perform a large job in 2 days. Now, one month later and I must admit my "mild allergies" are gone, no scratchy throat. I am very impressed with this company and Nick's attention to us when we called upon them.

Ariana B

Antioch, TN
The first of its kind here in town. So great to have a safe mold remediation option in STL. There is nothing better you can do for the health of your family than making sure your house is mold-free! They offer mold inspections and make it easy.

Margaret H

Brentwood, MO