Top-rated mold and asbestos pros.

Get matched with top mold and asbestos pros 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 and asbestos pros in Portsmouth

Avatar for New England Decon
New England Decon
1 Hardy Road, Unit 396
4.89(
14
)
Approved Pro
New England Decon
1 Hardy Road, Unit 396
4.89(
14
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

New England Decon is a local, woman owned company based in New Hampshire serving our community and neighbors throughout New England. Our team is experienced in resolving your unique challenges and remediation needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today!

"Helped me figure out the cause of our moisture problem and recommended how to fix the issue...."

Sandra S on March 2021

New England Decon is a local, woman owned company based in New Hampshire serving our community and neighbors throughout New England. Our team is experienced in resolving your unique challenges and remediation needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today!

"Helped me figure out the cause of our moisture problem and recommended how to fix the issue...."

Sandra S on March 2021


Avatar for US Water Consultants, Inc.
US Water Consultants, Inc.
44 North Lowell Road
4.86(
83
)
Approved Pro
US Water Consultants, Inc.
44 North Lowell Road
4.86(
83
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
27 years of experience

US Water Consultants, Inc., is one of the most comprehensive water purification and radon gas abatement companies in the great state of New Hampshire. Not only do we service New Hampshire, but we are also servicing a good portion of Massachusetts. Our qualified professional staff are very skilled in the services of radon gas abatement and water treatment and purification. If your families health is of the most importance, than look no further than US Water Consultants, Inc. For your consultation feel free to contact us today!

"Done quickly"

jonathan f on September 2024

US Water Consultants, Inc., is one of the most comprehensive water purification and radon gas abatement companies in the great state of New Hampshire. Not only do we service New Hampshire, but we are also servicing a good portion of Massachusetts. Our qualified professional staff are very skilled in the services of radon gas abatement and water treatment and purification. If your families health is of the most importance, than look no further than US Water Consultants, Inc. For your consultation feel free to contact us today!

"Done quickly"

jonathan f on September 2024


Silver Environmental
636 Howe Street
4.83(
63
)
Approved Pro
Silver Environmental
636 Howe Street
4.83(
63
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
10 local quotes requested

Silver Environmental is professional company. We have a wide variety of Environmental Services. We have been in this industry for 25 years. We offer Financing! We strongly believe in giving our customers the most for their money. We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience. This approach has set us apart from our competition and keeps our customers coming back! You can be sure your project will be handled promptly and professionally. Call us today to schedule your appointment!

"The work was done in a professional manner and I'd hire Silver again for anything."

Gary P on August 2024

Silver Environmental is professional company. We have a wide variety of Environmental Services. We have been in this industry for 25 years. We offer Financing! We strongly believe in giving our customers the most for their money. We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience. This approach has set us apart from our competition and keeps our customers coming back! You can be sure your project will be handled promptly and professionally. Call us today to schedule your appointment!

"The work was done in a professional manner and I'd hire Silver again for anything."

Gary P on August 2024


Avatar for Maine Radon & Water Treatment
Maine Radon & Water Treatment
243 Roosevelt Trail
5.00(
9
)
Approved Pro
Maine Radon & Water Treatment
243 Roosevelt Trail
5.00(
9
)
Approved Pro
Customers say: Quick response
4 years of experience
Free onsite estimate

Maine Radon & Water Treatment is a trusted, locally owned company based in Windham, proudly serving surrounding communities throughout Maine. We specialize in comprehensive radon mitigation and water treatment solutions designed to keep your home safe, healthy, and up to code. With years of experience, we are committed to delivering top-quality workmanship, honest service, and lasting results. Our team takes pride in professionalism, integrity, and treating your home like our own. Whether you're dealing with radon concerns or water quality issues, we’re here to help—reliably and affordably. Contact us today to schedule your consultation.

"Cannot say enough good things about this company! Responsive, respectful, quality work , and reasonably priced."

Benjamin L on July 2025

Maine Radon & Water Treatment is a trusted, locally owned company based in Windham, proudly serving surrounding communities throughout Maine. We specialize in comprehensive radon mitigation and water treatment solutions designed to keep your home safe, healthy, and up to code. With years of experience, we are committed to delivering top-quality workmanship, honest service, and lasting results. Our team takes pride in professionalism, integrity, and treating your home like our own. Whether you're dealing with radon concerns or water quality issues, we’re here to help—reliably and affordably. Contact us today to schedule your consultation.

"Cannot say enough good things about this company! Responsive, respectful, quality work , and reasonably priced."

Benjamin L on July 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
38 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 Indoor Doctor, LLC
Indoor Doctor, LLC
35 Manchester Road, Unit 11A #213
4.90(
150
)
Approved Pro
Indoor Doctor, LLC
35 Manchester Road, Unit 11A #213
4.90(
150
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
51 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.

"evrythibng was great! no hiden surprises with price, eveyhting and everyoine ius up front and know what there doing"

Ronald A on July 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.

"evrythibng was great! no hiden surprises with price, eveyhting and everyoine ius up front and know what there doing"

Ronald A on July 2025


Avatar for Safe Radon Solutions, LLC
Safe Radon Solutions, LLC
551 Shore Road, Unit A
4.88(
29
)
Approved Pro
Safe Radon Solutions, LLC
551 Shore Road, Unit A
4.88(
29
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
6 years of experience

M-F 8am - 6pm

"Nick did a radon system for us in November. He wasn't sure because of the set up of our development and piping if the fan would be strong enough to mitigate completely, which is fine EXCEPT for he failed to give us a test kit, I called him and he still did not send a test kit and we have had absolutely no follow up regarding the system. So, while he did great work (I think) and he was very pleasant, I would not recommend SRS because now who knows if our system is even working?? We will test on our own but very disappointed."

Brittany R on May 2025

M-F 8am - 6pm

"Nick did a radon system for us in November. He wasn't sure because of the set up of our development and piping if the fan would be strong enough to mitigate completely, which is fine EXCEPT for he failed to give us a test kit, I called him and he still did not send a test kit and we have had absolutely no follow up regarding the system. So, while he did great work (I think) and he was very pleasant, I would not recommend SRS because now who knows if our system is even working?? We will test on our own but very disappointed."

Brittany R on May 2025


Avatar for RestoPros of Southern New Hampshire
RestoPros of Southern New Hampshire
20 Riverland Road, Unit 4
New on HomeAdvisorNew on Angi
Approved Pro
RestoPros of Southern New Hampshire
20 Riverland Road, Unit 4
New on AngiNew on HomeAdvisor
Approved Pro
Free onsite estimate
Emergency services offered

When disaster strikes, you need fast, dependable, and professional restoration services you can trust. Our certified and insured team is available 24/7 to handle emergency water extraction, mold remediation, and fire damage restoration throughout Southern New Hampshire. With a reputation for excellence and years of experience, we provide top-tier solutions to restore your property efficiently and safely. Whether it’s flood damage, mold growth, or fire-related destruction, our experts use advanced technology and proven methods to bring your home or business back to pre-loss condition. We understand the urgency of every restoration situation and are committed to delivering prompt, reliable, and high-quality service when you need it most. Your property is in capable hands with our dedicated professionals who prioritize safety, precision, and customer satisfaction.

When disaster strikes, you need fast, dependable, and professional restoration services you can trust. Our certified and insured team is available 24/7 to handle emergency water extraction, mold remediation, and fire damage restoration throughout Southern New Hampshire. With a reputation for excellence and years of experience, we provide top-tier solutions to restore your property efficiently and safely. Whether it’s flood damage, mold growth, or fire-related destruction, our experts use advanced technology and proven methods to bring your home or business back to pre-loss condition. We understand the urgency of every restoration situation and are committed to delivering prompt, reliable, and high-quality service when you need it most. Your property is in capable hands with our dedicated professionals who prioritize safety, precision, and customer satisfaction.


ENVIROTEST LABORATORY INC
375 Westfield St
4.65(
184
)
Approved Pro
ENVIROTEST LABORATORY INC
375 Westfield St
4.65(
184
)
Approved Pro
Customers say: Terrific value
10 local quotes requested
34 years of experience

Our company started in 1991, with a focus on building hazards such as Mold Testing, Mold Inspection, Air Quality and Sick Building Syndrome. Envirotest then naturally progressed to focus on Asbestos, Radon and Lead Paint testing. Our mold expert is Samuel N. Cohen, he has over 25 years experience in the Environmental Science field, has intimate knowledge of Construction Codes, and can determine air quality problems quickly and then recommend many cost effective ways to solve your air quality problem. He is an innovator in the Mold field who was one of the first mold testing consultants to successfully utilize thermal imaging in this field. We are dedicated to serving our customer's needs, and our goal is 100% customer satisfaction. We strive to bring you the best in quality service. If something isn't right, please let us know.

"All good. Technicians are polite and deliver promises"

John B on February 2021

Our company started in 1991, with a focus on building hazards such as Mold Testing, Mold Inspection, Air Quality and Sick Building Syndrome. Envirotest then naturally progressed to focus on Asbestos, Radon and Lead Paint testing. Our mold expert is Samuel N. Cohen, he has over 25 years experience in the Environmental Science field, has intimate knowledge of Construction Codes, and can determine air quality problems quickly and then recommend many cost effective ways to solve your air quality problem. He is an innovator in the Mold field who was one of the first mold testing consultants to successfully utilize thermal imaging in this field. We are dedicated to serving our customer's needs, and our goal is 100% customer satisfaction. We strive to bring you the best in quality service. If something isn't right, please let us know.

"All good. Technicians are polite and deliver promises"

John B on February 2021


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

...
Showing 1-10 of 80
The Portsmouth, NH homeowners’ guide to mold and asbestos services
From average costs to expert advice, get all the answers you need to get your job done.
A worker installing subfloor from sheets of plywood
Jun 26, 2025
Jun 26, 2025
Budget for the cost to put in a subfloor based on factors such as location, materials, labor, repairs, new flooring, and more.
rebar installed on site of new driveway
Jun 23, 2025
Jun 23, 2025
Use this guide to learn how much rebar costs per foot so you can budget for your next big home improvement project.
carpenter repairing the roof of a house
Apr 30, 2025
Apr 30, 2025
Use this guide to budget for roof repair costs based on factors such as roof condition, materials, size, repair type and severity, and more.
A man installing laminate floor
Apr 28, 2025
Apr 28, 2025
Flooring installation costs depend on the floor material you choose and the size of the room. Learn all the cost factors so you can budget for this project.
new roof installed on house
Apr 28, 2025
Apr 28, 2025
Our comprehensive cost guide will help you explore the costs associated with roof replacement, including roof pitch, shape, design, square footage, and more.
Sunlight coming through in a contemporary stylish bathroom
Apr 24, 2025
Apr 24, 2025
The cost to repipe a house depends on your home’s size, the number of fixtures, and the pipe material. Understand all the cost factors before you take on this project.
Share project details to get started.