Top-rated mold & toxic material testers.

Get matched with top mold & toxic material testers in Hollis, NH

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.

Find Mold & toxic material testers in Hollis

Avatar for Indoor Doctor, LLC

Indoor Doctor, LLC

35 Manchester Road, Unit 11A #213
4.87(
153
)
•Approved Pro

Indoor Doctor, LLC

35 Manchester Road, Unit 11A #213
4.87(
153
)
•Approved Pro
Super Service Award
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
147 local quotes requested

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.

"Very Professional and communicated well with me"

Raphaela M on September 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.

"Very Professional and communicated well with me"

Raphaela M on September 2025

Avatar for Green Home Solutions of North Central MA

Green Home Solutions of North Central MA

15 Coughlin Street
4.89(
9
)
•Approved Pro

Green Home Solutions of North Central MA

15 Coughlin Street
4.89(
9
)
•Approved Pro
Customers say: Quick response
56 local quotes requested
4 years of experience

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

10 Grant Ave W
2.00(
1
)
•Approved Pro

Tri State Flood Inc

10 Grant Ave W
2.00(
1
)
•Approved Pro
1161 local quotes requested
21 years of experience

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 Greenwave Solutions LLC

Greenwave Solutions LLC

5.00(
3
)
•Approved Pro

Greenwave Solutions LLC

5.00(
3
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
113 local quotes requested

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! BBB accredited and A+ Rating.

"It was great! Matt:s schedule was very accommodating. He explained everything very carefully. The job was more difficult than anticipated and every detail was addressed for a fair price. Matt was very nice to work with"

Mary M on September 2025

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! BBB accredited and A+ Rating.

"It was great! Matt:s schedule was very accommodating. He explained everything very carefully. The job was more difficult than anticipated and every detail was addressed for a fair price. Matt was very nice to work with"

Mary M on September 2025

Avatar for Mazyck's Mold Services

Mazyck's Mold Services

152 Pleasant Terrace
5.00(
2
)
•Approved Pro

Mazyck's Mold Services

152 Pleasant Terrace
5.00(
2
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
89 local quotes requested

A family-owned and operated mold remediation company with roots in Westminster, MA, we're committed to making your home healthy again. We provide expert, top-quality services, ensuring a safe and clean environment for your family.

"It went great! Clean, fast, simple. Great company and people!"

Tim M on November 2024

A family-owned and operated mold remediation company with roots in Westminster, MA, we're committed to making your home healthy again. We provide expert, top-quality services, ensuring a safe and clean environment for your family.

"It went great! Clean, fast, simple. Great company and people!"

Tim M on November 2024

Avatar for My Pure Environment- New England

My Pure Environment- New England

43 Nesmith ST
5.00(
32
)
•Approved Pro

My Pure Environment- New England

43 Nesmith ST
5.00(
32
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
525 local quotes requested

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

"Ray was professional and did a good job getting me test results and then even helping understand those as well! A+"

lynda S on May 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

"Ray was professional and did a good job getting me test results and then even helping understand those as well! A+"

lynda S on May 2025

Avatar for Affordable Mold Removal

Affordable Mold Removal

1248 Washington St
4.88(
99
)
•Approved Pro

Affordable Mold Removal

1248 Washington St
4.88(
99
)
•Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
325 local quotes requested

Certified Mold Remediation for over ten years. We can handle the big jobs down to the small jobs. We offer free inspections and estimates. Locally owned and owner is on all jobs to answer any questions you may have. The service you get with us cannot be matched. Additional contact - Dina Oliver

"Did mold remediation in 2020 before house was purchased. Mold found in attic. Resolved it with a 4 year warranty expiring 3-23-24. In January 2024, found mold in same spot. They inspected and sent an estimate to remove. Asked about the warranty still in place. Never responded. Did a good job of remediation work. Doesn’t support their warranty."

Deborah H on February 2024

Certified Mold Remediation for over ten years. We can handle the big jobs down to the small jobs. We offer free inspections and estimates. Locally owned and owner is on all jobs to answer any questions you may have. The service you get with us cannot be matched. Additional contact - Dina Oliver

"Did mold remediation in 2020 before house was purchased. Mold found in attic. Resolved it with a 4 year warranty expiring 3-23-24. In January 2024, found mold in same spot. They inspected and sent an estimate to remove. Asked about the warranty still in place. Never responded. Did a good job of remediation work. Doesn’t support their warranty."

Deborah H on February 2024

Radon Systems LLC

170 Burbank Rd
4.97(
226
)
•Approved Pro

Radon Systems LLC

170 Burbank Rd
4.97(
226
)
•Approved Pro
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
584 local quotes requested

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 Morneault Environmental

Morneault Environmental

5.00(
7
)
•Approved Pro

Morneault Environmental

5.00(
7
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
727 local quotes requested

Veteran owned and operated with over a decade of experience in the demolition and environmental services.

"The 1964 bulkhead I had out back was replaced a year ago, but the wood and insulation underneath (the ceiling of the walkway underground to my basement under the back living room) took in water damage and the area was very musty for years. Tom Morneault of Morneault Environmental was the only guy I could find that would not only treat the wood to remove anything growing on it/get rid of the smell, but his team also removed old wood and insulation and re-insulated for me as part of the deal, which was still hundreds of dollars cheaper than the other companies I talked to, which would only remove the old wood and insulation, they don't put anything back in. Tom's team was here by 8:30 this morning and by 2pm they were done and it looks fantastic and smells crisp and clean. They didn't even stop for breaks or have to make any trips to get supplies, they had them all in the van, including the insulation boards. Very highly recommended if anyone is in the same situation."

Stephen T on June 2024

Veteran owned and operated with over a decade of experience in the demolition and environmental services.

"The 1964 bulkhead I had out back was replaced a year ago, but the wood and insulation underneath (the ceiling of the walkway underground to my basement under the back living room) took in water damage and the area was very musty for years. Tom Morneault of Morneault Environmental was the only guy I could find that would not only treat the wood to remove anything growing on it/get rid of the smell, but his team also removed old wood and insulation and re-insulated for me as part of the deal, which was still hundreds of dollars cheaper than the other companies I talked to, which would only remove the old wood and insulation, they don't put anything back in. Tom's team was here by 8:30 this morning and by 2pm they were done and it looks fantastic and smells crisp and clean. They didn't even stop for breaks or have to make any trips to get supplies, they had them all in the van, including the insulation boards. Very highly recommended if anyone is in the same situation."

Stephen T on June 2024

Paul Davis Emergency Services

103 Adams St
5.00(
1
)

Paul Davis Emergency Services

103 Adams St
5.00(
1
)
Customers say: Quick response
Free onsite estimate

We bill insurance directly. No out of pocket expense

We bill insurance directly. No out of pocket expense

...
Showing 1-10 of 276
FAQs for mold & toxic material test projects in Hollis, NH

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 Hollis, NH homeowners’ guide to mold & toxic material tests

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

See all articles