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Radon Systems LLC

4.99(
219
)
Approved Pro

Radon Systems LLC

4.99(
219
)
Approved Pro
Customers say: Super punctual
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
40 years of experience

Guaranteed Results! Radon Systems LLC has installed over 20,000 successful Radon mitigation systems since 1985. Radon Systems LLC is one of the few full service Radon mitigation companies that remediate both Radon in air and Radon in water. We are state certified and fully insured. Radon Systems LLC is recognized by the National Environmental Health Association (NEHA) and the American Association of Radon Scientists and Technologists (AARST).

"Derick did a great clean job. I live in a ranch with an unfinished basement. Install took around 1 hour. Derick was punctual, professional and informative. System is doing its job!"

James P on July 2024

Guaranteed Results! Radon Systems LLC has installed over 20,000 successful Radon mitigation systems since 1985. Radon Systems LLC is one of the few full service Radon mitigation companies that remediate both Radon in air and Radon in water. We are state certified and fully insured. Radon Systems LLC is recognized by the National Environmental Health Association (NEHA) and the American Association of Radon Scientists and Technologists (AARST).

"Derick did a great clean job. I live in a ranch with an unfinished basement. Install took around 1 hour. Derick was punctual, professional and informative. System is doing its job!"

James P on July 2024


Avatar for Indoor Doctor, LLC

Indoor Doctor, LLC

4.87(
159
)
Approved Pro

Indoor Doctor, LLC

4.87(
159
)
Approved Pro
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
23 years of experience

We provide peace of mind & solutions for your indoor environmental needs. IndoorDoctor ® evaluates the health of your indoors using proven testing techniques, unmatched state-of-the-art equipment, and years of experience handling environmental issues like yours. We help determine if your indoor environment is healthy through an unbiased assessment using proven testing techniques, unmatched state-of-the-art testing equipment, and years of experience handling issues like yours. We've successfully completed over 35,000+ indoor environmental inspections. Our goal is to provide you peace of mind about the true nature of your indoor environment. Environmental engineering combines science and engineering principles to improve aspects of the environment. IndoorDoctor® specialists use these fundamentals to define your environmental concern, evaluate its significance, and develop corrective actions or preventative plans to reduce the perceived hazard.

"Tech James, was great. Took his time and explained everything to me. I didn't feel like he was just trying to take my money. "

Greg T on November 2025

We provide peace of mind & solutions for your indoor environmental needs. IndoorDoctor ® evaluates the health of your indoors using proven testing techniques, unmatched state-of-the-art equipment, and years of experience handling environmental issues like yours. We help determine if your indoor environment is healthy through an unbiased assessment using proven testing techniques, unmatched state-of-the-art testing equipment, and years of experience handling issues like yours. We've successfully completed over 35,000+ indoor environmental inspections. Our goal is to provide you peace of mind about the true nature of your indoor environment. Environmental engineering combines science and engineering principles to improve aspects of the environment. IndoorDoctor® specialists use these fundamentals to define your environmental concern, evaluate its significance, and develop corrective actions or preventative plans to reduce the perceived hazard.

"Tech James, was great. Took his time and explained everything to me. I didn't feel like he was just trying to take my money. "

Greg T on November 2025


Avatar for My Pure Environment- New England

My Pure Environment- New England

5.00(
34
)
Approved Pro

My Pure Environment- New England

5.00(
34
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
5 years of experience

My Pure Environment New England provides mold removal from homes and businesses throughout Massachusetts. We use a patented dry fog technology that allows us to wipe out the toxic mold, like black mold, from virtually any building. Our revolutionary demolition-free mold remediation method means we can break down microbes on a molecular level, and get rid of the problem without removing walls or ceilings. And because our mold treatment fog is dry, nothing in your home or office is at risk for water damage. Best of all it's all-natural using EPA-registered products and is the only mold remediation process with a one-year guarantee

"Pure Environmental was fantastic. Ray our technician was wonderful. He explained what the process would be he was so knowledgeable I was very impressed."

Maryann G on November 2025

My Pure Environment New England provides mold removal from homes and businesses throughout Massachusetts. We use a patented dry fog technology that allows us to wipe out the toxic mold, like black mold, from virtually any building. Our revolutionary demolition-free mold remediation method means we can break down microbes on a molecular level, and get rid of the problem without removing walls or ceilings. And because our mold treatment fog is dry, nothing in your home or office is at risk for water damage. Best of all it's all-natural using EPA-registered products and is the only mold remediation process with a one-year guarantee

"Pure Environmental was fantastic. Ray our technician was wonderful. He explained what the process would be he was so knowledgeable I was very impressed."

Maryann G on November 2025


Avatar for My Pure Environment New England

My Pure Environment New England

4.80(
96
)
Approved Pro

My Pure Environment New England

4.80(
96
)
Approved Pro
Customers say: Super punctual
5 years of experience
Free onsite estimate

My Pure Environment specializes in using a patented dry fog process to kill mold without any to very little demolition. We pride ourselves on being the best at mold remediation both in efficacy, timeframe, and value. We’re so confident in this that we offer a warranty that is unparalleled in our industry! Mold is all we do, this is our passion and sole focus, no one knows mold and mold remediation like we do. It is our goal to bring every home and business back to a safe and healthy environment while giving our customers the peace of mind and confidence that only comes from having the best work done by the best people. If you have mold concerns and need testing, have a mold problem you need fixed and want to prevent future mold development, then we are your only solution! We look forward to serving you and yours with integrity and great care.

"Fast response to my inquiry. Very knowledgeble in remediating mold issues. Price is very fair. Performed the job the next day. Excellent communication. Very happy with Rei's service. Highly recommended."

Yiqing W on May 2025

My Pure Environment specializes in using a patented dry fog process to kill mold without any to very little demolition. We pride ourselves on being the best at mold remediation both in efficacy, timeframe, and value. We’re so confident in this that we offer a warranty that is unparalleled in our industry! Mold is all we do, this is our passion and sole focus, no one knows mold and mold remediation like we do. It is our goal to bring every home and business back to a safe and healthy environment while giving our customers the peace of mind and confidence that only comes from having the best work done by the best people. If you have mold concerns and need testing, have a mold problem you need fixed and want to prevent future mold development, then we are your only solution! We look forward to serving you and yours with integrity and great care.

"Fast response to my inquiry. Very knowledgeble in remediating mold issues. Price is very fair. Performed the job the next day. Excellent communication. Very happy with Rei's service. Highly recommended."

Yiqing W on May 2025


Avatar for Green Home Solutions of North Central MA

Green Home Solutions of North Central MA

4.89(
9
)
Approved Pro

Green Home Solutions of North Central MA

4.89(
9
)
Approved Pro
Customers say: Quick response
4 years of experience
Warranties offered

We provide comprehensive indoor air solutions that target the root cause of the problem, not just the symptoms. Our team of experts utilizes science-backed, eco-friendly treatments to eliminate mold, mildew, and other pollutants. With years of experience and a commitment to sustainability, we've successfully transformed thousands of homes, offices, and healthcare facilities across America. Our customers trust us to deliver cleaner, healthier indoor air without harming people, pets, or the planet. Our services include: Indoor Air Quality Assessments: Identifying and addressing potential health risks. Mold Remediation: Effective removal of mold and mildew. HVAC Duct Cleaning: Improving air circulation and reducing allergens. Probiotic Treatments: Enhancing indoor air quality and promoting a healthier environment. Breathe easy with Green Home Solutions.

"Kenson was very thorough and professional, and applied lots of experience to tailor their services to our exact needs."

Anthony G on February 2025

We provide comprehensive indoor air solutions that target the root cause of the problem, not just the symptoms. Our team of experts utilizes science-backed, eco-friendly treatments to eliminate mold, mildew, and other pollutants. With years of experience and a commitment to sustainability, we've successfully transformed thousands of homes, offices, and healthcare facilities across America. Our customers trust us to deliver cleaner, healthier indoor air without harming people, pets, or the planet. Our services include: Indoor Air Quality Assessments: Identifying and addressing potential health risks. Mold Remediation: Effective removal of mold and mildew. HVAC Duct Cleaning: Improving air circulation and reducing allergens. Probiotic Treatments: Enhancing indoor air quality and promoting a healthier environment. Breathe easy with Green Home Solutions.

"Kenson was very thorough and professional, and applied lots of experience to tailor their services to our exact needs."

Anthony G on February 2025


Avatar for Tri State Flood Inc

Tri State Flood Inc

3.50(
2
)
Approved Pro

Tri State Flood Inc

3.50(
2
)
Approved Pro
21 years of experience
Free onsite estimate

At Tri State Flood Inc, we specialize in comprehensive disaster restoration services. Our team is dedicated to safeguarding homes and businesses from the damaging effects of water, fires, mold and storms. Here’s what sets us apart: Water Removal and Storm Damage Restoration: When water wreaks havoc due to storms or other incidents, we’re here to help. Our 24/7 emergency response team swiftly tackles water extraction, drying, and structural repairs. Comprehensive Services: Beyond mold and water remediation, we handle storm damage repairs, basement flood cleanup and fire restoration. Choose Tri State Flood Inc for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.

"Lesson learned. Always get an estimate. BEFORE the work is done. At least a digital copy. Arrangements for the project were made, with some one named Lynn, for the company to send someone to complete the work. We were quoted over the phone 4500-5000 which included a mold test. A sub contractor with an entirely different company (National Mold Company) was sent. When the contractor arrived, he stated that the job would be much more simpler than first thought. This led us to believe that the job would cost less, no. All said and done, they charged $5500. All said and done, it's almost like no work was done. The stains and the smell are still there. Only one actual board was taken upon the attic room. The ceiling in the bedroom was primed and painted but are still visible and have a funky smell. At this point I'm going to. Do what we should have done; Do the job ourselves. Just now with $5500 less dollars in our pockets. A detailed receipt was not given even though it was requested."

David B on August 2025

At Tri State Flood Inc, we specialize in comprehensive disaster restoration services. Our team is dedicated to safeguarding homes and businesses from the damaging effects of water, fires, mold and storms. Here’s what sets us apart: Water Removal and Storm Damage Restoration: When water wreaks havoc due to storms or other incidents, we’re here to help. Our 24/7 emergency response team swiftly tackles water extraction, drying, and structural repairs. Comprehensive Services: Beyond mold and water remediation, we handle storm damage repairs, basement flood cleanup and fire restoration. Choose Tri State Flood Inc for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.

"Lesson learned. Always get an estimate. BEFORE the work is done. At least a digital copy. Arrangements for the project were made, with some one named Lynn, for the company to send someone to complete the work. We were quoted over the phone 4500-5000 which included a mold test. A sub contractor with an entirely different company (National Mold Company) was sent. When the contractor arrived, he stated that the job would be much more simpler than first thought. This led us to believe that the job would cost less, no. All said and done, they charged $5500. All said and done, it's almost like no work was done. The stains and the smell are still there. Only one actual board was taken upon the attic room. The ceiling in the bedroom was primed and painted but are still visible and have a funky smell. At this point I'm going to. Do what we should have done; Do the job ourselves. Just now with $5500 less dollars in our pockets. A detailed receipt was not given even though it was requested."

David B on August 2025


Avatar for Environmental Testing & Research Laboratories, Inc

Environmental Testing & Research Laboratories, Inc

4.85(
347
)

Environmental Testing & Research Laboratories, Inc

4.85(
347
)
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018


May Indoor Air Investigation LLC

4.94(
52
)

May Indoor Air Investigation LLC

4.94(
52
)
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

We are locally based, indoor air quality consultants who test the air and dust to find the sources of building problems that can cause health symptoms. We do not use subcontractors. Jeffrey C. May, Principal Scientist, and Connie L. May, Office Manager, work together as a team and are co-authors of four books on indoor air quality, published by The Johns Hopkins University Press. Jeff is a Certified Indoor Air Quality Professional (AEE) and a Certified Mold Inspector and Assessor (ESA). Fees are job based.

"If it would be possible I could give more than 5 stars. Jeff and Connie are very nice people and incredibly knowlegable specialists. They went above and beyond, conducting inspection of our house. I invited them because of presence of mold and odors. The house was thoroughly inspected not only for those problems we concerned of, but for all other possible hazards. Jeff and Connie spent as much time at our house as it was needed to complete all the aspects of required inspection. Each room, even every little space, furnace, AC unit, stove, refrigerator were inspected. Shortly after appointment I got detailed reports with photos and multiple very helpful recommendations. Now we know what exactly should be done in the house and outside in order to eliminate negative issues found by Jeff who is an expert in all aspects, related to different systems of house. Jeff and Connie are very kind and intelligent people. It was a real pleasure to spend several hours with them at our house. This appointment was life-changing for us. I highly recommend May Idoor Air Inspections to all who would like to make sure that environment of living places is safe."

Galine P on February 2023

We are locally based, indoor air quality consultants who test the air and dust to find the sources of building problems that can cause health symptoms. We do not use subcontractors. Jeffrey C. May, Principal Scientist, and Connie L. May, Office Manager, work together as a team and are co-authors of four books on indoor air quality, published by The Johns Hopkins University Press. Jeff is a Certified Indoor Air Quality Professional (AEE) and a Certified Mold Inspector and Assessor (ESA). Fees are job based.

"If it would be possible I could give more than 5 stars. Jeff and Connie are very nice people and incredibly knowlegable specialists. They went above and beyond, conducting inspection of our house. I invited them because of presence of mold and odors. The house was thoroughly inspected not only for those problems we concerned of, but for all other possible hazards. Jeff and Connie spent as much time at our house as it was needed to complete all the aspects of required inspection. Each room, even every little space, furnace, AC unit, stove, refrigerator were inspected. Shortly after appointment I got detailed reports with photos and multiple very helpful recommendations. Now we know what exactly should be done in the house and outside in order to eliminate negative issues found by Jeff who is an expert in all aspects, related to different systems of house. Jeff and Connie are very kind and intelligent people. It was a real pleasure to spend several hours with them at our house. This appointment was life-changing for us. I highly recommend May Idoor Air Inspections to all who would like to make sure that environment of living places is safe."

Galine P on February 2023


Avatar for Moldlab

Moldlab

4.74(
352
)

Moldlab

4.74(
352
)
Customers say: True professional
25 years of experience

Mold identification, mold test kits and testing supplies. If you suspect you have a mold problem give us a call toll free and we can walk you through your testing options.

"The self-test product was as expected. The reports require additional research to interpret and understand, so seemed more targeted at professionals."

Jessica H on February 2018

Mold identification, mold test kits and testing supplies. If you suspect you have a mold problem give us a call toll free and we can walk you through your testing options.

"The self-test product was as expected. The reports require additional research to interpret and understand, so seemed more targeted at professionals."

Jessica H on February 2018


Avatar for JP Pest Services

JP Pest Services

4.80(
160
)

JP Pest Services

4.80(
160
)
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

JP Pest Services has been providing pest management solutions for New England homes and businesses since 1925. We’ve learned a lot about our Northeast customer base over the past 9 decades like what they expect from the effectiveness of our services to what they need from our Customer Service Representatives and Service Professionals in the field.

"Joel their sales rep assured us our apartments would be rotated so the inside of each unit was checked at least every six months. Got the bait and switch bc they never did this and we had a cockroach infestation that went on for a year. They lied to me and then their manager claimed “we don’t see it in the contract”. I want a refund. You’ve been doing nothing productive. I can lay my own ant traps for less than $2k a year."

Kate B on January 2025

JP Pest Services has been providing pest management solutions for New England homes and businesses since 1925. We’ve learned a lot about our Northeast customer base over the past 9 decades like what they expect from the effectiveness of our services to what they need from our Customer Service Representatives and Service Professionals in the field.

"Joel their sales rep assured us our apartments would be rotated so the inside of each unit was checked at least every six months. Got the bait and switch bc they never did this and we had a cockroach infestation that went on for a year. They lied to me and then their manager claimed “we don’t see it in the contract”. I want a refund. You’ve been doing nothing productive. I can lay my own ant traps for less than $2k a year."

Kate B on January 2025

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FAQs for mold testing and remediation projects in Litchfield, NH

Some states require mold removal specialists to be licensed, while others require licensed mold testing companies to create remediation protocols that any contractor can carry out. You can use our state licensing tool to find requirements in your area. In either case, it’s imperative that you hire an experienced professional for mold removal to ensure the safety of your home and your family.

It’s possible to scrub mold off of visible surfaces yourself, but it’s not usually a good idea. Mold is not only a potential health risk, but it’s also difficult to treat in its entirety, especially because it can grow behind walls and in other hidden areas a DIYer might miss. Since mold is a serious and often pervasive issue, you should hire a professional that will remove all of the mold—including any that might be hidden—run industrial air scrubbers to remove airborne particles, and complete mold testing to ensure the underlying problem is solved.

The most effective way to remove mold includes testing affected surfaces and the air for spores, creating a protocol for removal, carrying out the steps within the protocol, running air scrubbers for the recommended amount of time, and then completing a post-remediation round of testing to confirm the issue is solved. Since this work is very involved and there are health risks if done incorrectly, you should always hire an experienced professional to handle mold removal.

The average cost for mold remediation is around $2,200, and most projects fall somewhere between $1,100 and $3,300. Your total will depend on many factors, including the surface area that is affected by mold, the extent of the issue, how much building material your professional needs to replace, whether or not testing is necessary for safety reasons, and existing indoor air quality.

Mold removal will take between one and five days in most cases, but severe mold issues can take several weeks to correct. Your timeline will depend on how much mold there is in your home, where the mold is located, and how much testing and aftercare is required. If you have mold behind your walls or you have an excessive amount of mold that requires removal and running air scrubbers for several days, you could be looking at over a week for the process to be completed.

The Litchfield, NH homeowners’ guide to mold testing and remediation services

From average costs to expert advice, get all the answers you need to get your job done.