Top-rated mold testing and remediation specialists.

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There are 13 highly-rated local mold testing and remediation specialists.

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TRUSTED BY THORNWOOD, NY HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon16
    Verified mold testing and remediation services reviews

Find Mold testing and remediation specialists in Thornwood

Avatar for Clawback, Inc.

Clawback, Inc.

4.96(
238
)
Approved Pro

Clawback, Inc.

4.96(
238
)
Approved Pro
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
2016 years of experience

Clawback is an environmental assessment company. We inspect and test for mold, asbestos, air, water and radon gas. Good to know: *The average inspection time takes between 30 and 45 minutes to complete. Radon testing requires a drop off of testing equipment and 48hrs to complete. *For convenience on the day of your inspection and prior to our appointment I will provide you with an on the way call / text to confirm my ETA. *Your mold assessment will include a thorough inspection for mold and moisture throughout your home from the basement to the attic. All fee's for inspection service(s) are as follows: Mold Inspection: $350.00 includes inspecting your home for mold and moisture. Mold sampling fee is $75.00 per sample. Asbestos Sampling: $350.00 + $95-$120 per sample. Radon Testing $250.00, Air Service Testing $500.00, (includes two samples). Water Testing $275.00. **All fee's for assessments and testing are due at time of inspection.

"we are so happy to have found Clawback, and Gary was truly a Gem! He call me promptly came out to our home the same day, explained the process, informed us of turnaround time and answered all our many we had upon review of final testing results. He has a great sense of humor and through it all his professionalism and over 20 years of experience is worth the price. We would definitely hire this pro again!"

sharon r on June 2025

Clawback is an environmental assessment company. We inspect and test for mold, asbestos, air, water and radon gas. Good to know: *The average inspection time takes between 30 and 45 minutes to complete. Radon testing requires a drop off of testing equipment and 48hrs to complete. *For convenience on the day of your inspection and prior to our appointment I will provide you with an on the way call / text to confirm my ETA. *Your mold assessment will include a thorough inspection for mold and moisture throughout your home from the basement to the attic. All fee's for inspection service(s) are as follows: Mold Inspection: $350.00 includes inspecting your home for mold and moisture. Mold sampling fee is $75.00 per sample. Asbestos Sampling: $350.00 + $95-$120 per sample. Radon Testing $250.00, Air Service Testing $500.00, (includes two samples). Water Testing $275.00. **All fee's for assessments and testing are due at time of inspection.

"we are so happy to have found Clawback, and Gary was truly a Gem! He call me promptly came out to our home the same day, explained the process, informed us of turnaround time and answered all our many we had upon review of final testing results. He has a great sense of humor and through it all his professionalism and over 20 years of experience is worth the price. We would definitely hire this pro again!"

sharon r on June 2025


Avatar for Environmental Assessments & Solutions, Inc.

Environmental Assessments & Solutions, Inc.

4.98(
107
)
Approved Pro

Environmental Assessments & Solutions, Inc.

4.98(
107
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1992 years of experience

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 9 years in row 2017-2025!** 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 9 years in row 2017-2025!** 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 Phase 1 Restoration Inc.

Phase 1 Restoration Inc.

4.79(
19
)
Approved Pro

Phase 1 Restoration Inc.

4.79(
19
)
Approved Pro
Customers say: Quick response
1987 years of experience
Free onsite estimate

Phase 1 Restoration, Inc. possesses and utilizes the acumen to evaluate our client’s requirements and initiate a course of action necessary to achieve intended targets, incorporating the client’s schedule, budget, operational needs and future plans into consideration.

"Phase 1 did a fantastic job. They arrived on time and worked well to remove the asbestos from our basement."

Peter S on July 2025

Phase 1 Restoration, Inc. possesses and utilizes the acumen to evaluate our client’s requirements and initiate a course of action necessary to achieve intended targets, incorporating the client’s schedule, budget, operational needs and future plans into consideration.

"Phase 1 did a fantastic job. They arrived on time and worked well to remove the asbestos from our basement."

Peter S on July 2025


Avatar for ALL PRO CLEANING & RESTORATION SERVICES

ALL PRO CLEANING & RESTORATION SERVICES

4.76(
34
)
Approved Pro

ALL PRO CLEANING & RESTORATION SERVICES

4.76(
34
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
1987 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


"Peter and his team were very thorough in assessing and remediating my mold problem. His staff was very knowledgeable, professional and courteous throughout the process. Issue was identified , remediated and contained with modern state of the art equipment."

Greg Deli D on November 2023

We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today.

"Peter and his team were very thorough in assessing and remediating my mold problem. His staff was very knowledgeable, professional and courteous throughout the process. Issue was identified , remediated and contained with modern state of the art equipment."

Greg Deli D on November 2023


Avatar for Expediant Environmental Solutions, LLC

Expediant Environmental Solutions, LLC

4.35(
362
)
Approved Pro

Expediant Environmental Solutions, LLC

4.35(
362
)
Approved Pro
Customers say: True professional
1995 years of experience
Free onsite estimate

Expediant Environmental is committed to excellence and continues to be an outstanding business with over 25 years of experience. Our company prides itself on an outstanding record of quality service. We specialize in your whole home as a system approach. So when it comes to mold removal, insulation, or waterproofing we never forget to make sure it does not have a negative effect on another function of your home. Wet Crawl Space? Expediant offers CleanSpace encapsulation system to control moisture and dampness in the crawl space. We are an authorized Contractor Nation installer. Radon problem? That's no problem for us. Got bed bugs or rodents? We can make them disappear! Expediant offers a wide variety of services to meet all your pest control needs from preventative maintenance to treatment of active problems. See our website! www.Expedianthomesolutions.com

"Highly recommend, great work! "

Bill P on October 2025

Expediant Environmental is committed to excellence and continues to be an outstanding business with over 25 years of experience. Our company prides itself on an outstanding record of quality service. We specialize in your whole home as a system approach. So when it comes to mold removal, insulation, or waterproofing we never forget to make sure it does not have a negative effect on another function of your home. Wet Crawl Space? Expediant offers CleanSpace encapsulation system to control moisture and dampness in the crawl space. We are an authorized Contractor Nation installer. Radon problem? That's no problem for us. Got bed bugs or rodents? We can make them disappear! Expediant offers a wide variety of services to meet all your pest control needs from preventative maintenance to treatment of active problems. See our website! www.Expedianthomesolutions.com

"Highly recommend, great work! "

Bill P on October 2025


Avatar for Mold Test Company NY

Mold Test Company NY

4.31(
73
)
Approved Pro

Mold Test Company NY

4.31(
73
)
Approved Pro
Customers say: Quality work
2008 years of experience

At Mold Test Company NY, we take great pride our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Very professional, thorough and easy to work with"

Nicole B on March 2023

At Mold Test Company NY, we take great pride our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Very professional, thorough and easy to work with"

Nicole B on March 2023


Avatar for Certified Mold Removal Inc.

Certified Mold Removal Inc.

4.00(
45
)
Approved Pro

Certified Mold Removal Inc.

4.00(
45
)
Approved Pro
Customers say: Super punctual
1995 years of experience
Emergency services offered

Certified Mold Removal has been providing expert licensed and certified mold inspection, testing, removal and remediation services Since 1995! Not All Mold is Dangerous! Don't Let Other Companies Scare You! Call now and we can have a licensed and certified mold inspector at your home today!

"I paid this company $600 to test the air in my detached garage. The results showed Cladosporium, which many professionals told me is extremely common. What happened next was one of the most uncomfortable experiences I’ve ever had with a home-service company. They sent me a remediation proposal for over $45,000, and in my personal opinion the scope, tone, and sheer intensity of the warnings felt completely disproportionate to the situation. The estimate was filled with pages of dramatic health claims that, to me, came across as fear tactics rather than professional guidance. When I asked questions, the owner was extremely rude and dismissive on the phone. The whole thing felt pushy and uncomfortable. After leaving an honest review, things escalated in a way that shocked me. The owner contacted me and offered a refund only if I signed a notarized disclaimer that he drafted. I personally found that very unusual, and I chose not to sign anything. What concerned me even more was what happened next: after I declined to sign the document, a negative review suddenly appeared online about my wife’s business — at our home address — claiming she had done work for him and stolen $600 from him. In my experience, this was completely untrue. My wife has never worked for him in any capacity. In my personal opinion, it felt retaliatory and deeply unprofessional. I ended up getting several second opinions from other mold professionals, all of whom felt the quote I received was excessive for what was found. Based on my experience with the customer service, the tone of the estimate, and the way things unfolded afterward, I would strongly recommend that other homeowners get multiple quotes before agreeing to anything. In my personal view, the way this situation was handled was alarming, unprofessional, and not in the best interest of the customer."

Andy S on December 2025

Certified Mold Removal has been providing expert licensed and certified mold inspection, testing, removal and remediation services Since 1995! Not All Mold is Dangerous! Don't Let Other Companies Scare You! Call now and we can have a licensed and certified mold inspector at your home today!

"I paid this company $600 to test the air in my detached garage. The results showed Cladosporium, which many professionals told me is extremely common. What happened next was one of the most uncomfortable experiences I’ve ever had with a home-service company. They sent me a remediation proposal for over $45,000, and in my personal opinion the scope, tone, and sheer intensity of the warnings felt completely disproportionate to the situation. The estimate was filled with pages of dramatic health claims that, to me, came across as fear tactics rather than professional guidance. When I asked questions, the owner was extremely rude and dismissive on the phone. The whole thing felt pushy and uncomfortable. After leaving an honest review, things escalated in a way that shocked me. The owner contacted me and offered a refund only if I signed a notarized disclaimer that he drafted. I personally found that very unusual, and I chose not to sign anything. What concerned me even more was what happened next: after I declined to sign the document, a negative review suddenly appeared online about my wife’s business — at our home address — claiming she had done work for him and stolen $600 from him. In my experience, this was completely untrue. My wife has never worked for him in any capacity. In my personal opinion, it felt retaliatory and deeply unprofessional. I ended up getting several second opinions from other mold professionals, all of whom felt the quote I received was excessive for what was found. Based on my experience with the customer service, the tone of the estimate, and the way things unfolded afterward, I would strongly recommend that other homeowners get multiple quotes before agreeing to anything. In my personal view, the way this situation was handled was alarming, unprofessional, and not in the best interest of the customer."

Andy S on December 2025


Procyon

4.33(
6
)
Approved Pro

Procyon

4.33(
6
)
Approved Pro
Customers say: Quick response
2014 years of experience
Free onsite estimate

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 had a poor experience. I hired this company to do a mold assessment in my apartment. I dealt with the owner. First, he requested cash or check payment only. He made an appointment and did not show up or contact me. I had to call him. In one of the rooms, the pipes above and whatever else the cause of the leak was, had been leaking repeatedly for 40 years, and the plaster constantly replaced. I was worried about mold ABOVE the ceiling on the beams and studs and not just the visible mold on the ceiling plaster and I worried it could be black mold. He did not seem to listen to what I told him and he did not use a water meter to check for saturation or a borescope or any other tools except taking a surface sample and air sample (the borescope and water meter I did not know about until after I had paid him for this inadequate job). He did not mention anything I said in the report. He was also rude and unkind and never provided me with a receipt."

Ellen L on December 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 had a poor experience. I hired this company to do a mold assessment in my apartment. I dealt with the owner. First, he requested cash or check payment only. He made an appointment and did not show up or contact me. I had to call him. In one of the rooms, the pipes above and whatever else the cause of the leak was, had been leaking repeatedly for 40 years, and the plaster constantly replaced. I was worried about mold ABOVE the ceiling on the beams and studs and not just the visible mold on the ceiling plaster and I worried it could be black mold. He did not seem to listen to what I told him and he did not use a water meter to check for saturation or a borescope or any other tools except taking a surface sample and air sample (the borescope and water meter I did not know about until after I had paid him for this inadequate job). He did not mention anything I said in the report. He was also rude and unkind and never provided me with a receipt."

Ellen L on December 2025


Avatar for Hudson Mold Testing and Consulting, Inc.

Hudson Mold Testing and Consulting, Inc.

5.00(
2
)
Approved Pro

Hudson Mold Testing and Consulting, Inc.

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2018 years of experience

Hudson Mold Testing and Consulting provides unmatched services in mold testing and remediation consulting. We are dedicated to ensuring our customers receive only the most professional services to aid in any potential indoor mold situation. Utilizing high-quality experience in the indoor air quality and mold testing industry, we help to clearly and concisely diagnose mold concerns that could impact your residential or commercial property. Hudson makes use of industry-leading sample collection media, precise laboratory analysis and reporting, and detailed explanations and confirmations of any identified mold issues. ​ For more information about what you would receive from Hudson's mold inspection and testing services, see below. For more information about mold testing and when/how you should approach this, please visit our Mold Testing section.

"I did not have any complaints, he was very respectful by using covid protection, he has a reasonable price, and I will recommend him to my family and friends."

Ryan S on February 2021

Hudson Mold Testing and Consulting provides unmatched services in mold testing and remediation consulting. We are dedicated to ensuring our customers receive only the most professional services to aid in any potential indoor mold situation. Utilizing high-quality experience in the indoor air quality and mold testing industry, we help to clearly and concisely diagnose mold concerns that could impact your residential or commercial property. Hudson makes use of industry-leading sample collection media, precise laboratory analysis and reporting, and detailed explanations and confirmations of any identified mold issues. ​ For more information about what you would receive from Hudson's mold inspection and testing services, see below. For more information about mold testing and when/how you should approach this, please visit our Mold Testing section.

"I did not have any complaints, he was very respectful by using covid protection, he has a reasonable price, and I will recommend him to my family and friends."

Ryan S on February 2021

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Mold Testing and Remediation questions, answered by experts

If high moisture levels have led to mold growth on your drywall, mold remediation may be your best bet. The average cost of mold remediation is $2,400 , but the total price depends on how much you need to repair and the location. Removing mold from drywall may cost you between $300 and $825 , but the overall price could be higher if you need to fully replace several walls in your home.

Symptoms of sewer gas poisoning include nausea, dizziness, extreme drowsiness, and headaches, according to the Wisconsin Department of Health Services. Exposure to higher concentrations for long periods of time could also lead to unconsciousness due to a lack of oxygen, aka suffocation. If you think you’ve been exposed to sewer gas for a dangerous amount of time, seek medical care immediately. Do not return to the site of exposure, after you’ve received medical care, call a pro for help.

Mold can come back after cleaning, especially if the conditions are right. Mold loves moist environments, so if you clean a piece of furniture, then put it back in a humid area, the mold can return. Mold may also return if you missed an area during cleaning. A professional mold remediation company can help ensure that the mold is gone for good.

Mold can damage the surface it’s growing on, cause mold-related sickness, and even affect your upper respiratory system.

Mold sickness manifests mostly in respiratory issues. Any coughing, wheezing, shortness of breath, and mental confusion—brain fog—are all telltale signs of mold sickness. Also be on the lookout for skin irritations, persistent and unexplainable headaches, and sinus infections. Remember that mold can still cause health issues even if you can’t see it, and just because you can’t see it doesn’t mean it isn’t there.

The Thornwood, NY homeowners’ guide to mold testing and remediation services

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