Top-rated mold & toxic material testers.

Get matched with top mold & toxic material testers in your area

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Mold & toxic material testers in Cos Cob

Avatar for Mold Reconnaissance, LLC
Mold Reconnaissance, LLC
337 Paramus Rd
4.50(
1
)
Approved Pro
Mold Reconnaissance, LLC
337 Paramus Rd
4.50(
1
)
Approved Pro
Customers say: Quick response
2 years of experience
Free onsite estimate

Mold Recon is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 20 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"They were punctual, and professional, and provided results within 48 hours."

james b on April 2023

Mold Recon is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 20 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"They were punctual, and professional, and provided results within 48 hours."

james b on April 2023


Avatar for Green Home Solutions of Western CT
Green Home Solutions of Western CT
568 Danbury Rd Building 7 Unit 3
4.74(
40
)
Approved Pro
Green Home Solutions of Western CT
568 Danbury Rd Building 7 Unit 3
4.74(
40
)
Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
13 years of experience

Green Home Solutions prides itself on having the highest trained board certified inspectors come out to assess every job. Once we complete our assessment, in most cases, we can give you an estimate on the spot. It is likely we have done a job similar to yours hundreds of times. We use the latest equipment, infrared and other tools to help determine the source, cause and recommend a fix to every job. We specialize in environmental clean up so we will not be trying to use mold to sell you other services like extended warranties, Insulation, sump pumps and roofing products. We will recommend pros that specialize in those fields so you have experts working together to make sure your project is done correctly. We pride ourselves on the highest quality of work, good communication and getting the job completed promptly.

"Matt,our tech,was outstanding . He gave clear answers to my questions and put my mind at ease. He took air samples and said the results will be back in about three days . Also I should mention the woman who made the initial call to me was so understanding . She could tell by my tone of voice I was worried . She made the sale first thing . Great customer service , 100%"

Alan V on July 2023

Green Home Solutions prides itself on having the highest trained board certified inspectors come out to assess every job. Once we complete our assessment, in most cases, we can give you an estimate on the spot. It is likely we have done a job similar to yours hundreds of times. We use the latest equipment, infrared and other tools to help determine the source, cause and recommend a fix to every job. We specialize in environmental clean up so we will not be trying to use mold to sell you other services like extended warranties, Insulation, sump pumps and roofing products. We will recommend pros that specialize in those fields so you have experts working together to make sure your project is done correctly. We pride ourselves on the highest quality of work, good communication and getting the job completed promptly.

"Matt,our tech,was outstanding . He gave clear answers to my questions and put my mind at ease. He took air samples and said the results will be back in about three days . Also I should mention the woman who made the initial call to me was so understanding . She could tell by my tone of voice I was worried . She made the sale first thing . Great customer service , 100%"

Alan V on July 2023


Avatar for Precise, LLC
Precise, LLC
222 POST RD
4.93(
44
)
Approved Pro
Precise, LLC
222 POST RD
4.93(
44
)
Approved Pro
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
84 local quotes requested

Precise is the industry leader in both Mold and Pathogen Removal and Protection. We service Fairfield County, CT and many surrounding areas. We guarantee that your mold and contaminated air problem will be eliminated and your indoor air will be refreshed, provide a safe and healthy environment for your family. Not only are we experts in the mold remediation industry but with our unique patented Mold and Pathogen Removal Products, we can ensure that any mold or pathogen problem will be eliminated fast, efficiently, and be affordable.

""

Ray W on August 2024

Precise is the industry leader in both Mold and Pathogen Removal and Protection. We service Fairfield County, CT and many surrounding areas. We guarantee that your mold and contaminated air problem will be eliminated and your indoor air will be refreshed, provide a safe and healthy environment for your family. Not only are we experts in the mold remediation industry but with our unique patented Mold and Pathogen Removal Products, we can ensure that any mold or pathogen problem will be eliminated fast, efficiently, and be affordable.

""

Ray W on August 2024


Avatar for H RESTORATION LLC
H RESTORATION LLC
5.00(
1
)
Approved Pro
H RESTORATION LLC
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

For over 15 years, our company has been a trusted leader in asbestos remediation and mold removal and cleaning. We pride ourselves on our swift and efficient services, ensuring the safety and well-being of homeowners and the environment. Our team of experts is dedicated to using the latest techniques and precautions to effectively address and eliminate hazardous materials. We also understand the urgency of these issues, which is why we offer reliable emergency services. Trust us to provide a safe and thorough solution for your home’s needs. We are licensed, insured and experts in handlng insurance claims.

"Answered any questions I had Very professional and did an amazing job Cleaned up afterwards"

Debbie M on November 2024

For over 15 years, our company has been a trusted leader in asbestos remediation and mold removal and cleaning. We pride ourselves on our swift and efficient services, ensuring the safety and well-being of homeowners and the environment. Our team of experts is dedicated to using the latest techniques and precautions to effectively address and eliminate hazardous materials. We also understand the urgency of these issues, which is why we offer reliable emergency services. Trust us to provide a safe and thorough solution for your home’s needs. We are licensed, insured and experts in handlng insurance claims.

"Answered any questions I had Very professional and did an amazing job Cleaned up afterwards"

Debbie M on November 2024


Avatar for Environmental Assessments & Solutions, Inc.
Environmental Assessments & Solutions, Inc.
144 Euclid Ave
4.98(
109
)
Approved Pro
Environmental Assessments & Solutions, Inc.
144 Euclid Ave
4.98(
109
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
108 local quotes requested

Locally owned and operated mold and indoor environmental testing and consulting services company serving NYS, CTS, and NJS since 1992. With over 31 years experience and over 50,000 inspections completed. Court qualified and experienced. Independent and Unbiased inspections with no eyes on the clock. Weekend and evening appointments at no extra charge. ANGI's super service award winner 6 years in row 2017-2022! ** We NEVER conduct abatement/remediation services*** Please CALL us for a FREE phone consultation today!

"Charles was fantastic. Would recommend!"

eddie e on April 2025

Locally owned and operated mold and indoor environmental testing and consulting services company serving NYS, CTS, and NJS since 1992. With over 31 years experience and over 50,000 inspections completed. Court qualified and experienced. Independent and Unbiased inspections with no eyes on the clock. Weekend and evening appointments at no extra charge. ANGI's super service award winner 6 years in row 2017-2022! ** We NEVER conduct abatement/remediation services*** Please CALL us for a FREE phone consultation today!

"Charles was fantastic. Would recommend!"

eddie e on April 2025


Avatar for Homeguard Environmental
Homeguard Environmental
48 Union St
5.00(
47
)
Approved Pro
Homeguard Environmental
48 Union St
5.00(
47
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
113 local quotes requested

40 YEARS OF EXCELLENCE! HAVE AN ENVIRONMENTAL ISSUE? CALL US WE’LL PROBABLY HAVE THE SOLUTION!  MOLD REMEDIATION  ASBESTOS ABATEMENT  DECONTAMINATION SERVICES  LEAD ABATEMENT  LEAD CONSULTING  RRP SERVICES  RE-INSULATION  DEHUMIDIFIERS  AND MORE LEAD-SAFE CERTIFIED FULLY LICENSED IN CT

"I had used Homeguard previously and was very satisfied with their services. They came out quickly for a project review and quote. The consultant was very knowledgeable and thorough. The project started and finished on time and within their quote. The crew was polite and did quality work. I was completely satisfied and would certainly use them again and highly recommend them."

Joseph K on July 2024

40 YEARS OF EXCELLENCE! HAVE AN ENVIRONMENTAL ISSUE? CALL US WE’LL PROBABLY HAVE THE SOLUTION!  MOLD REMEDIATION  ASBESTOS ABATEMENT  DECONTAMINATION SERVICES  LEAD ABATEMENT  LEAD CONSULTING  RRP SERVICES  RE-INSULATION  DEHUMIDIFIERS  AND MORE LEAD-SAFE CERTIFIED FULLY LICENSED IN CT

"I had used Homeguard previously and was very satisfied with their services. They came out quickly for a project review and quote. The consultant was very knowledgeable and thorough. The project started and finished on time and within their quote. The crew was polite and did quality work. I was completely satisfied and would certainly use them again and highly recommend them."

Joseph K on July 2024


Avatar for Water Fire Fix, LLC
Water Fire Fix, LLC
1771 Post Road East
5.00(
8
)
Approved Pro
Water Fire Fix, LLC
1771 Post Road East
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
80 local quotes requested

Our family owned business provides professional, eco-friendly cleanup and restoration services throughout Connecticut. We specialize in residential and commercial damage due to water, fire, mold, and natural disaster.

"Tim was wonderful. I put in this project on a Saturday night after finding mold behind a piece of furniture in my finished basement. The next morning Tim already reached out looking to set up an appointment Monday morning. Over the phone he explained the possible process of this project and put me in the books first thing Monday morning. He arrived right on time, looked at the area, and again explained everything. After about 15 minutes of doing his inspection, Tim gave me two estimates, which were both fairly priced. I selected the estimate that worked best for me, and Tim got working right away. Throughout the project, he continued to update me with what he was doing and what he had left. From when Tim arrived to when he left, it took him roughly 3.5 hours for the whole project. He did an excellent job, and I would recommend him to anyone."

Alli K on April 2025

Our family owned business provides professional, eco-friendly cleanup and restoration services throughout Connecticut. We specialize in residential and commercial damage due to water, fire, mold, and natural disaster.

"Tim was wonderful. I put in this project on a Saturday night after finding mold behind a piece of furniture in my finished basement. The next morning Tim already reached out looking to set up an appointment Monday morning. Over the phone he explained the possible process of this project and put me in the books first thing Monday morning. He arrived right on time, looked at the area, and again explained everything. After about 15 minutes of doing his inspection, Tim gave me two estimates, which were both fairly priced. I selected the estimate that worked best for me, and Tim got working right away. Throughout the project, he continued to update me with what he was doing and what he had left. From when Tim arrived to when he left, it took him roughly 3.5 hours for the whole project. He did an excellent job, and I would recommend him to anyone."

Alli K on April 2025


Procyon
51 Highland Ave
5.00(
5
)
Approved Pro
Procyon
51 Highland Ave
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
822 local quotes requested

We can offer Mold Testing and Remediation. Water Damage. Smoke Damage. Fire Damage. Our owner is on site for all jobs! Call today we work flawlessly with your insurance company.

"I can’t say enough good things about Procyon. When a sudden flood in my basement occurred, their team responded with urgency and professionalism, arriving promptly and fully prepared. They quickly assessed the situation and got to work immediately. They ensured that every bit of moisture was taken care of, preventing any future mold or structural issues. I was especially impressed by their attention to detail. They didn’t just focus on removing the water, they also followed through with thorough drying, disinfecting, and post-remediation inspections to ensure my basement was safe and sound. They communicated with me every step of the way, which gave me peace of mind throughout the entire process. Thanks to their efforts, what could have been a disaster turned into a manageable situation. I highly recommend Procyon for anyone in need of reliable and effective remediation services. Their dedication, expertise, and customer care were second to none."

Chloe C on February 2025

We can offer Mold Testing and Remediation. Water Damage. Smoke Damage. Fire Damage. Our owner is on site for all jobs! Call today we work flawlessly with your insurance company.

"I can’t say enough good things about Procyon. When a sudden flood in my basement occurred, their team responded with urgency and professionalism, arriving promptly and fully prepared. They quickly assessed the situation and got to work immediately. They ensured that every bit of moisture was taken care of, preventing any future mold or structural issues. I was especially impressed by their attention to detail. They didn’t just focus on removing the water, they also followed through with thorough drying, disinfecting, and post-remediation inspections to ensure my basement was safe and sound. They communicated with me every step of the way, which gave me peace of mind throughout the entire process. Thanks to their efforts, what could have been a disaster turned into a manageable situation. I highly recommend Procyon for anyone in need of reliable and effective remediation services. Their dedication, expertise, and customer care were second to none."

Chloe C on February 2025


Avatar for ALL PRO CLEANING & RESTORATION SERVICES
ALL PRO CLEANING & RESTORATION SERVICES
75 Virginia Road
4.49(
39
)
Approved Pro
ALL PRO CLEANING & RESTORATION SERVICES
75 Virginia Road
4.49(
39
)
Approved Pro
Customers say: Super punctual
225 local quotes requested
38 years of experience

When disaster strikes, All Pro is waiting 24 hours a day, 7 days a week, 365 days a year. Regardless of the magnitude of damage, All Pro’s experienced technicians are capable of assisting you and your client in managing the disaster crisis. All Pro works closely with you and your client at every phase: Consultation—A technical specialist examines and evaluates the disaster. Evaluation—The disaster site is secured, and service methodologies and timelines are developed and submitted to you and your client. Education—Technical specialists review coverage and educate the insured on the restoration process, while easing their minds about the disaster. Quality Checks and Service—Work is processed, secured, and stored at All Pro’s facility. A checklist of all work is reviewed and inspected prior to final quality sign-off from the managing principal. Follow-up—A technical specialist calls you and your clients to ensure that work has been satisfactorily completed.

"Very good and excellent service."

Joseph C on May 2022

When disaster strikes, All Pro is waiting 24 hours a day, 7 days a week, 365 days a year. Regardless of the magnitude of damage, All Pro’s experienced technicians are capable of assisting you and your client in managing the disaster crisis. All Pro works closely with you and your client at every phase: Consultation—A technical specialist examines and evaluates the disaster. Evaluation—The disaster site is secured, and service methodologies and timelines are developed and submitted to you and your client. Education—Technical specialists review coverage and educate the insured on the restoration process, while easing their minds about the disaster. Quality Checks and Service—Work is processed, secured, and stored at All Pro’s facility. A checklist of all work is reviewed and inspected prior to final quality sign-off from the managing principal. Follow-up—A technical specialist calls you and your clients to ensure that work has been satisfactorily completed.

"Very good and excellent service."

Joseph C on May 2022


Avatar for Mr Chimney
Mr Chimney
529 Rockland Ave
4.68(
251
)
Approved Pro
Mr Chimney
529 Rockland Ave
4.68(
251
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
249 local quotes requested

Mr Chimney is the chimney and fireplace expert! We are a family owned business serving Westchester County, Putnam County, Bronx, NYC, Brooklyn and Fairfield County, CT. since 1969! Our services include chimney sweeping, chimney inspections, fireplace cleaning, gas and oil furnace flue cleanings, boiler flue cleanings, hot water heater flue cleanings, gas grill sales, gas grill repairs, gas fireplace repairs, gas log set sales and gas log set repairs, wood stove and gas stove cleanings, chimney repairs, chimney restorations, fireplace restorations, gas fireplace sales and installations, wood stove sales and installations, gas and wood fireplace insert sales and installations, brickwork, waterproofing, gas log set sales, chimney rebuilding, chimney flashing repair, chimney crown repair, chimney rain cap installation, chimney exhaust fan installation, cleaning pizza ovens for restaurants, lining and relining chimney flues, metal chimney installations, solving smoke problems and solving draft issues. We are licensed & insured and service both residential and commercial clients. We take pride in being well known in NY State as a safe, reliable and honest company! We are available 24 hours a day, 7 days a week!

"They make sure the area was clean, there were no dirt. when they clean chimney they made a walk link to make sure that the house wouldn't get dirty. The supervisor is very knowledgeable they explained to me what they are doing and very professional and did a good job. They made recommendation of different fireplace design if i wanted to do upgrade in the future.."

Kahiesia B on August 2022

Mr Chimney is the chimney and fireplace expert! We are a family owned business serving Westchester County, Putnam County, Bronx, NYC, Brooklyn and Fairfield County, CT. since 1969! Our services include chimney sweeping, chimney inspections, fireplace cleaning, gas and oil furnace flue cleanings, boiler flue cleanings, hot water heater flue cleanings, gas grill sales, gas grill repairs, gas fireplace repairs, gas log set sales and gas log set repairs, wood stove and gas stove cleanings, chimney repairs, chimney restorations, fireplace restorations, gas fireplace sales and installations, wood stove sales and installations, gas and wood fireplace insert sales and installations, brickwork, waterproofing, gas log set sales, chimney rebuilding, chimney flashing repair, chimney crown repair, chimney rain cap installation, chimney exhaust fan installation, cleaning pizza ovens for restaurants, lining and relining chimney flues, metal chimney installations, solving smoke problems and solving draft issues. We are licensed & insured and service both residential and commercial clients. We take pride in being well known in NY State as a safe, reliable and honest company! We are available 24 hours a day, 7 days a week!

"They make sure the area was clean, there were no dirt. when they clean chimney they made a walk link to make sure that the house wouldn't get dirty. The supervisor is very knowledgeable they explained to me what they are doing and very professional and did a good job. They made recommendation of different fireplace design if i wanted to do upgrade in the future.."

Kahiesia B on August 2022

...
Showing 1-10 of 625

Mold & toxic material tests FAQs

Some companies offer a no‑cost phone or video consultation that screens for red flags. If the discussion points to a real issue, the pro will recommend a paid on‑site inspection. The complimentary call clarifies whether you need full testing, but it isn’t a substitute for samples, lab work, or a written report. Always confirm what the free service covers before you schedule.

A standard inspection, which includes basic air and surface samples, takes an average of two hours. If the pro needs to probe hidden spaces, such as wall cavities or ductwork, plan on up to six hours. Extra time allows the inspector to reach tight areas, collect additional samples, and document findings. Lab analysis is a separate process and often adds several business days to the overall timeframe before you receive the full report.

Mold thrives where moisture lingers and air flow is poor. Common hotspots include bathroom walls, kitchen backsplashes, window sills, HVAC vents, fireplaces, crawl spaces, and enclosed attics. Check these areas regularly—especially after leaks or high‑humidity weather—to catch growth early and avoid costly repairs.

Unchecked mold can knock 20% to 37% off a home’s market value because buyers worry about hidden damage and health risks. Even after remediation, visible staining or a history of major moisture issues can still lower offers and prolong the time on the market. Addressing mold quickly protects both your property’s structural integrity and its resale appeal.

The homeowners guide to mold & toxic material tests
From average costs to expert advice, get all the answers you need to get your job done.
Two professionals removing asbestos from a roof
Apr 26, 2025
Apr 26, 2025
Asbestos testing costs depend on the size of your home, its condition, and your location. This test ensures your home is safe from this hazardous material.
professional in protective suit removing asbestos from attic of home
Apr 25, 2025
Apr 25, 2025
Concerned about asbestos in your home? Learn how to identify, manage, and safely remove this hazardous material with expert guidance on abatement methods, regulations, and best practices.
professional testing for toxic lead in home
Apr 26, 2025
Apr 26, 2025
Budget for lead paint inspection costs based on factors such as home size, location, home condition, repairs and removal, additional tests, and more.
professional removing mold damaged wallpaper from home
Apr 25, 2025
Apr 25, 2025
Budget for mold inspection costs based on factors such as the size of your home, testing type, mold type, location, accessibility, and more.
professional testing the air quality in a home
Apr 14, 2025
Apr 14, 2025
Budget for the cost of an indoor air quality test based on factors such as home size, pollutant type, potential remediation needs, labor, and more.
sump pump radon gas removal system in basement of home
Mar 28, 2025
Mar 28, 2025
Budget for radon mitigation system costs based on factors such as location, permits, professional labor, system type, testing, and more.
Share project details to get started.