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Top-Rated Mold and asbestos pros in Cos Cob - Updated Nov 2026

Avatar for Clawback, Inc.
Clawback, Inc.
4.9(
260
)
Mold & Toxic Material TestAsbestos - TestingIndoor Air Quality Testing+1 more

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2016

Small jobs welcome

Credit card accepted

"Gary arrived as promised and was very Professional. He went the extra mile to explain lab results with me for identification of asbestos in my vinyl flooring. Gary is a star in environmental testing as he squelched my fears of having asbestos in my home. Iâ m happy to say Iâ m asbestos free and can resume my project with piece of mind that Iâ m not exposing my family to harmful effects of asbestos."
Mold Inspection
Infrared image shows mold
Drywall Mold
Mold of Kitchen Lighting Fixture
Mold Remediation in Progress

+8

Response time5 hrs
Response rate97%
3 neighbors recently requested a quote
Avatar for Environmental Assessments & Solutions, Inc.
Environmental Assessments & Solutions, Inc.
4.9(
116
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"When we discovered we had asbestos in our basement, hiring Charles was the best decision we made. Our problem turned out to be more extensive than originally thought but Charles helped us through the project. He was always available to answer our questions and above all provided excellent advice and recommendations on how to proceed. As a homeowner unfamiliar with the process used to remove asbestos, he became our trusted adviser throughout the project. I would strongly recommend his services to others faced with an asbestos problem."
Additional Photos
Additional Photos
Response time2 days
Response rate100%
Recommended by99%of homeowners
Avatar for Orellana Construction Company, LLC
Orellana Construction Company, LLC
4.9(
45
)
Asbestos - Abatement

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Orellana Construction Company just completed tile asbestos removal in my mom's basement. Carlos Orellana was fantastic, Great guy, great price and provided a great service. I would highly recommend high to anyone in New Haven County area . Totally professional and reliable"
Response time1 day
23 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Mid Hudson Home Restoration
Mid Hudson Home Restoration
4.9(
108
)
Toxicity and Mold - Removal

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1986

Warranties offered

Customers say: True professional

"I am so grateful to Johnnie and Chris from Mid Hudson Home Restoration! My husband and I hired them on two separate occasions. First hire - there was water damage in the basement and possible mold. I consulted with Johnnie over the phone and he quickly arranged for a visit. He quoted us that the work will be done in 3-5 days. Johnnie and Chris carefully took apart the dry wall, remediated the mold, and sealed everything up again in the timeframe they promised. They also repainted our entire basement and did a great phenomenal job. Second hire - we had a ceiling leak from an unknown source. Johnnie cleared his schedule for us and came immediately once he saw the video we sent. He found the source of the leak within minutes and over the next couple days, replacing the ceiling and sealed everything up. Johnnie and Chris are detail oriented and thorough with their work. Above all, they are warm, honest people who truly care and take pride in what they do."
 Attic ceiling before treatment  #1 of 3
 Mold before #1
 Mold behind wallpaper #1
 Water intrusion basement damage
Sani Dry XP w/top and bottom kit

+144

Response time8 hrs
1 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Benard Building Inspections, LLC
Benard Building Inspections, LLC
5.0(
72
)
Mold & Toxic Material Test

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"If more people were as honest, sincere, and caring as this man. I know this planet would thrive. Besides being a professional and clearly a true expert in this area, he explained everything clearly. Took his time and did not rush was patient and made me feel Safe. In the end, the mold testing he did showed I did not have elevated mold, prior to him I had a guy come in and told me he had a machine that tells if you have mold and he said I have 80% mold and I did not have to bother to do air samples. Be careful people. Other scammers out there. Andre is the Best you can trust what he says. Good luck."
Air Testing
Air Testing
Mold
Mold
Response time2 hrs
Response rate97%
1 neighbors recently requested a quote
Avatar for American Environmental Services
American Environmental Services
4.6(
58
)
Asbestos - Abatement

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2003

Free estimates

Credit card accepted

"Celestin helped with a small asbestos removal project- He was quick to respond, knowledgable, friendly, explained all of the work thoroughly, and did the work efficiently and cleanly at a fair rate. I'd definitely recommend him to anyone for abatement work."
asbestos abatement
asbestos abatement
asbestos abatement
asbestos abatement
asbbestos/oil tank

+1

Response time6 hrs
15 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for CONNECTICUT MOLD
CONNECTICUT MOLD
5.0(
8
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"The pro assigned to my home was very efficient and detailed, explaining all the testing he performed, and showing me the existing evidence of mold contamination on my AC in my bedroom. I was very pleased!"
Picture
Picture
Picture
Our photos
Our photos

+8

29 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for Certified Mold Removal Inc.
Certified Mold Removal Inc.
3.9(
58
)
Mold & Toxic Material TestMold & Toxic Material Test - For BusinessToxicity and Mold - Removal+1 more

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1995

Emergency services offered

Credit card accepted

"Called as I suspected potential mold. They were out the next morning to get it tested. Confirmed a few days later it was bad mold, explained the job and what was next. Worked around my schedule and came on time and completed the work promptly. The section of wall where the mold was looks good as new and the workers were great to deal with. Hopefully I never have to worry about mold again, but will certainly reach out to certified mold removal if I need to."
Mold Testing & Remediation Project
Mold Testing & Remediation Project
Additional Photos
Additional Photos
Additional Photos

+47

Recommended by63%of homeowners
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The Cos Cob, CT homeowners’ guide to mold and asbestos services

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