Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Pelham, NH

Enter your ZIP and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Pelham, NH?

Select your specific project to find the pro for you.

Verified Reviews for Radon Detection And Reduction pros in Pelham, NH

*The Angi rating for Radon Detection And Reduction companies in Pelham, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

*The HomeAdvisor rating for Radon Detection And Reduction companies in Pelham, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

Last update on October 24, 2025

Find Radon detection and reduction specialists in Pelham

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
171 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 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
51 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

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
70 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 Airtight Radon Solutions LLC

Airtight Radon Solutions LLC

11 Mandinbarb Cir
5.00(
16
)
•Approved Pro

Airtight Radon Solutions LLC

11 Mandinbarb Cir
5.00(
16
)
•Approved Pro
Customers say: Quick response
30 local quotes requested
1 years of experience

Welcome to Airtight Radon Solutions LLC ! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you! Achieving a safer and healthier environment for every home by providing effective radon mitigation solutions and raising awareness about the dangers of radon gas. Professional Radon Testing and Mitigation Services

"Airtight Radon Solutions was very responsive and professional. Marcel was very knowledgeable and came up with a good solution. I would highly recommend this company!"

Mike S on October 2025

Welcome to Airtight Radon Solutions LLC ! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you! Achieving a safer and healthier environment for every home by providing effective radon mitigation solutions and raising awareness about the dangers of radon gas. Professional Radon Testing and Mitigation Services

"Airtight Radon Solutions was very responsive and professional. Marcel was very knowledgeable and came up with a good solution. I would highly recommend this company!"

Mike S on October 2025

Avatar for Erickson Foundation Solutions

Erickson Foundation Solutions

14 Clement Rd.
4.54(
51
)
•Approved Pro

Erickson Foundation Solutions

14 Clement Rd.
4.54(
51
)
•Approved Pro
Customers say: True professional
45 local quotes requested
46 years of experience

Erickson Foundation Solutions specializes in foundation repair and basement waterproofing systems. We have been helping homeowners in our community fix their homes since 1979. With the help of the Supportworks and Basement Systems dealer networks, we have access to the best materials and foundation solutions in the industry to efficiently and effectively solve any problem you might have in your basement. All of our technicians are professionally trained, so you can be sure that you’re receiving high standards of professionalism and courtesy at every turn. Do you have any foundation problems? We can help!

"The company is working with me."

Richard N on April 2025

Erickson Foundation Solutions specializes in foundation repair and basement waterproofing systems. We have been helping homeowners in our community fix their homes since 1979. With the help of the Supportworks and Basement Systems dealer networks, we have access to the best materials and foundation solutions in the industry to efficiently and effectively solve any problem you might have in your basement. All of our technicians are professionally trained, so you can be sure that you’re receiving high standards of professionalism and courtesy at every turn. Do you have any foundation problems? We can help!

"The company is working with me."

Richard N on April 2025

Green Machine Services

11 Brewster St.
No reviews yet

Green Machine Services

11 Brewster St.
No reviews yet
5 years of experience

Have Tractor Will Travel! Offering land clearing, stair building, shrub and small stump removal, excavation up to 5ft deep, and any job you need a compact tractor to get done quickly. Rates negotiable depending on location and scale of job. Contact Shawn to discuss details.

Have Tractor Will Travel! Offering land clearing, stair building, shrub and small stump removal, excavation up to 5ft deep, and any job you need a compact tractor to get done quickly. Rates negotiable depending on location and scale of job. Contact Shawn to discuss details.

Avatar for Erickson Foundation Solutions

Erickson Foundation Solutions

14 Clement Road
4.56(
9
)

Erickson Foundation Solutions

14 Clement Road
4.56(
9
)
Customers say: True professional
54 local quotes requested

Erickson Foundation Solutions is your local expert for ALL THINGS BASEMENTY! We specialize in basement waterproofing, foundation and crawl space repair, sump pump installation and maintenance, concrete lifting & leveling, as well as radon mitigation. When it comes to problems or ongoing issues in your basement, we offer permanent solutions! We are a family owned business that began in 1979, proudly serving New Hampshire, Massachusetts, and Rhode Island.

"They did a fantastic job! We have had driving rain since the installation and our basement is bone dry. They came on time, were very polite and I'm very happy with the fast train system they installed."

Chris T on November 2021

Erickson Foundation Solutions is your local expert for ALL THINGS BASEMENTY! We specialize in basement waterproofing, foundation and crawl space repair, sump pump installation and maintenance, concrete lifting & leveling, as well as radon mitigation. When it comes to problems or ongoing issues in your basement, we offer permanent solutions! We are a family owned business that began in 1979, proudly serving New Hampshire, Massachusetts, and Rhode Island.

"They did a fantastic job! We have had driving rain since the installation and our basement is bone dry. They came on time, were very polite and I'm very happy with the fast train system they installed."

Chris T on November 2021

Summit Home Inspection, LLC

PO Box 536
5.00(
1
)

Summit Home Inspection, LLC

PO Box 536
5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Summit Home Inspection offers comprehensive residential property inspections, Radon Testing, Water Quality Testing and Septic Inspection scheduling for our clients. Utilizing drone technology, FLIR thermal imaging and other state of the art tools to provide you with the most information to make your home purchase. Jenna Roberts is the owner and inspector, training since 2015 while working full time as a police officer serving her local community. In early 2018, the transition from duty boots to work boots was easy and hundreds of inspections later, she is still passionate about her work! Hiring an inspector is a big decision, make sure you hire a professional who is experienced and able to communicate their findings to the clients. We look forward to working with you!

"It went great. Jenna was so professional and a great teacher. She really wanted me to understand my new home and what I might want to address once I move in. She covered everything. She found a couple of things that might have been scary but she assured me how these problems could be fixed."

Cynthia G on February 2021

Summit Home Inspection offers comprehensive residential property inspections, Radon Testing, Water Quality Testing and Septic Inspection scheduling for our clients. Utilizing drone technology, FLIR thermal imaging and other state of the art tools to provide you with the most information to make your home purchase. Jenna Roberts is the owner and inspector, training since 2015 while working full time as a police officer serving her local community. In early 2018, the transition from duty boots to work boots was easy and hundreds of inspections later, she is still passionate about her work! Hiring an inspector is a big decision, make sure you hire a professional who is experienced and able to communicate their findings to the clients. We look forward to working with you!

"It went great. Jenna was so professional and a great teacher. She really wanted me to understand my new home and what I might want to address once I move in. She covered everything. She found a couple of things that might have been scary but she assured me how these problems could be fixed."

Cynthia G on February 2021

DCL Radon Mitigation

54 Jordan Street
No reviews yet

DCL Radon Mitigation

54 Jordan Street
No reviews yet
12 years of experience

DCL Radon Mitigation provides friendly, reliable Radon Mitigation services helping keep your family protected from harmful Radon gas. We provide fast, dependable service for home owners of the greater north shore and surrounding communities.

DCL Radon Mitigation provides friendly, reliable Radon Mitigation services helping keep your family protected from harmful Radon gas. We provide fast, dependable service for home owners of the greater north shore and surrounding communities.

...
Showing 1-10 of 67
Radon Detection and Reduction questions, answered by experts

Short-term tests take 2-7 days, while long-term monitoring may require up to 90 days for accurate results.

DIY radon detection is possible using over-the-counter test kits, but professional testing can provide more accurate assessments, especially in cases of high initial readings.

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

Avoid opening windows and keep doors closed during testing to obtain accurate readings.

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

The Pelham, NH homeowners’ guide to radon detection and reduction services

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

See all articles