Top-rated radon detection and reduction specialists.

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

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

Find Radon detection and reduction specialists in Concord

Avatar for Airtight Radon Solutions LLC

Airtight Radon Solutions LLC

5.00(
17
)
Approved Pro

Airtight Radon Solutions LLC

5.00(
17
)
Approved Pro
Super Service Award
Customers say: Quick response
32 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

"Great work, explained everything to me, took his time and checked up on it after it was done! Highly recommend "

Michelle C 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

"Great work, explained everything to me, took his time and checked up on it after it was done! Highly recommend "

Michelle C on October 2025


Avatar for Erickson Foundation Solutions

Erickson Foundation Solutions

4.54(
51
)
Approved Pro

Erickson Foundation Solutions

4.54(
51
)
Approved Pro
Customers say: True professional
50 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


Avatar for Indoor Environmental

Indoor Environmental

4.98(
46
)
Approved Pro

Indoor Environmental

4.98(
46
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
35 local quotes requested

WE ARE A GREEN MOLD SOLUTION COMPANY. *Our solutions are free of hazardous materials & harsh chemicals *Within 24 hours mold is eliminated, the property is healthy, & ready to be lived in safely *CERTIFIED professionals *Our personal guarantee *Our customers have saved up to 65% over competitive quotes * We work in confidence. Our company vehicles are unmarked, which allows you to maintain a strong level of privacy for your home or business Our unique process replaces demolition & rebuilding, & reduces the need to replace carpets, furnishings & personal items.

"."

Alexa L on November 2025

WE ARE A GREEN MOLD SOLUTION COMPANY. *Our solutions are free of hazardous materials & harsh chemicals *Within 24 hours mold is eliminated, the property is healthy, & ready to be lived in safely *CERTIFIED professionals *Our personal guarantee *Our customers have saved up to 65% over competitive quotes * We work in confidence. Our company vehicles are unmarked, which allows you to maintain a strong level of privacy for your home or business Our unique process replaces demolition & rebuilding, & reduces the need to replace carpets, furnishings & personal items.

"."

Alexa L on November 2025



Summit Home Inspection, LLC

5.00(
1
)

Summit Home Inspection, LLC

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


Forever Home Inspections

No reviews yet

Forever Home Inspections

No reviews yet

We are Forever Home Inspections LLC and our goal is to give you peace of mind in your home. We do this by inspecting every accessible square foot of your property, over 400 separate items. Founded by a retired U.S. Navy Veteran and Bronze Star recipient we pride ourselves on honor, respect, and professionalism. Additionally, our InterNACHI trained inspectors bring a higher level of knowledge to the inspection process. We know we will leave you better prepared and more confident in the condition of your home. Because its not just a house, its a Forever Home.

We are Forever Home Inspections LLC and our goal is to give you peace of mind in your home. We do this by inspecting every accessible square foot of your property, over 400 separate items. Founded by a retired U.S. Navy Veteran and Bronze Star recipient we pride ourselves on honor, respect, and professionalism. Additionally, our InterNACHI trained inspectors bring a higher level of knowledge to the inspection process. We know we will leave you better prepared and more confident in the condition of your home. Because its not just a house, its a Forever Home.


8 Points Home Inspection

5.00(
6
)

8 Points Home Inspection

5.00(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

8 Points Home Inspection provides residential and commercial property inspections for buyers and sellers of real estate. Dave Riddle, owner and chief inspector at 8 Points, is an ASHI certified home inspector with the American Society of Home Inspectors. Dave is one of only a few in the state who is also certified through NRPP as a Radon Measurement Professional. When you want one of the most qualified and experienced inspectors to help guide you through a detailed review of your home, consider hiring 8 Points Home Inspection.

"Dave was great to work with. We were looking to buy a home while we were out of town, so we weren't able to attend the inspection. Dave was very quick to respond and fit us in on a weekend. Since we couldn't go to the inspection, he had a video call with us to walk us through the main results and then sent over the detailed report. He explained things very clearly. He was very thorough."

Margaret H on July 2021

8 Points Home Inspection provides residential and commercial property inspections for buyers and sellers of real estate. Dave Riddle, owner and chief inspector at 8 Points, is an ASHI certified home inspector with the American Society of Home Inspectors. Dave is one of only a few in the state who is also certified through NRPP as a Radon Measurement Professional. When you want one of the most qualified and experienced inspectors to help guide you through a detailed review of your home, consider hiring 8 Points Home Inspection.

"Dave was great to work with. We were looking to buy a home while we were out of town, so we weren't able to attend the inspection. Dave was very quick to respond and fit us in on a weekend. Since we couldn't go to the inspection, he had a video call with us to walk us through the main results and then sent over the detailed report. He explained things very clearly. He was very thorough."

Margaret H on July 2021


DCL Radon Mitigation

No reviews yet

DCL Radon Mitigation

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.


Avatar for Lawrence DiPietro LLC

Lawrence DiPietro LLC

5.00(
39
)

Lawrence DiPietro LLC

5.00(
39
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

One of the most highly trained and qualified home inspectors in the area. 35+ years experience in home inspection, radon detection/reduction, construction, and engineering. My home inspections and reports are second-to-none. I also provide home buyers with cost effective and sound advice on how to maintain their homes. In addition to being a licensed home inspector (MA, NH & CT), I am also a licensed contractor, electrician, plumber, gas fitter, oil burner technician and air conditioner technician. I am also an engineer with BS and MS degrees in Mechanical Engineering. Member of ASHI (American Society of Home Inspectors) and InterNACHI (International Assoc. of Certified Home Inspectors).

"Larry did a great job! He is very thorough , very patient to explain every detail to me. Even though the house is new construction, he still found out a bunch of problems. He is very helpful, I would recommend him to my friends."

Hannah Z on January 2018

One of the most highly trained and qualified home inspectors in the area. 35+ years experience in home inspection, radon detection/reduction, construction, and engineering. My home inspections and reports are second-to-none. I also provide home buyers with cost effective and sound advice on how to maintain their homes. In addition to being a licensed home inspector (MA, NH & CT), I am also a licensed contractor, electrician, plumber, gas fitter, oil burner technician and air conditioner technician. I am also an engineer with BS and MS degrees in Mechanical Engineering. Member of ASHI (American Society of Home Inspectors) and InterNACHI (International Assoc. of Certified Home Inspectors).

"Larry did a great job! He is very thorough , very patient to explain every detail to me. Even though the house is new construction, he still found out a bunch of problems. He is very helpful, I would recommend him to my friends."

Hannah Z on January 2018


Avatar for Litt Home Inspection

Litt Home Inspection

5.00(
19
)

Litt Home Inspection

5.00(
19
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

At Litt Home Inspection we understand that buying a home is probably the largest investment that you will ever make. We know the value of making an informed decision and we aim to arm you with as much information as possible about your prospective new home. We recognize that we are educators, as well as, investigators and in addition to identifying potential problems, we will teach you about the proper operation and maintenance of your home's main systems and components. When you hire Litt Home Inspection you can be assured that you will receive a thorough and comprehensive home inspection from a friendly, knowledgeable and experienced professional.

"Tracey was extremely professional and very thorough in her inspection. She gave very detailed insights both during the walkthrough and within her comprehensive follow-up report. Each item listed on the inspection was thoughtfully categorized and included photo complements to help me get a better understanding. I'm extremely pleased with the service provided and would gladly hire Tracey for a future inspection."

Robert R on June 2022

At Litt Home Inspection we understand that buying a home is probably the largest investment that you will ever make. We know the value of making an informed decision and we aim to arm you with as much information as possible about your prospective new home. We recognize that we are educators, as well as, investigators and in addition to identifying potential problems, we will teach you about the proper operation and maintenance of your home's main systems and components. When you hire Litt Home Inspection you can be assured that you will receive a thorough and comprehensive home inspection from a friendly, knowledgeable and experienced professional.

"Tracey was extremely professional and very thorough in her inspection. She gave very detailed insights both during the walkthrough and within her comprehensive follow-up report. Each item listed on the inspection was thoughtfully categorized and included photo complements to help me get a better understanding. I'm extremely pleased with the service provided and would gladly hire Tracey for a future inspection."

Robert R on June 2022

...
Showing 1-10 of 71
Radon Detection and Reduction questions, answered by experts

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.

You should have a professional test for radon every two to five years. A good rule of thumb is to get testing done every five years if you’ve never had an issue before and every two years if you have. You may also want to schedule testing if you notice symptoms of radon exposure or if you do intermittent DIY radon testing and notice changes in your levels between tests. If you have an active radon monitor, you can schedule testing if you notice levels increasing over time.

Since radon typically comes out of the soil, it is most commonly found in the lower levels of a home. In houses with basements, that's a common location for radon. Homes built directly on the ground may have radon on the ground floors. Radon can be found on the upper floors of the home, but often in lower concentrations than in lower levels.

Costs depend on test type, home size, number of testing locations, and whether follow-up testing is required.

Ideally, no one will live in a house with elevated radon levels, as prolonged exposure increases the risk of serious health issues like lung cancer. However, homes with radon can be made safe through mitigation systems, such as active soil depressurization. Testing for radon regularly and addressing high levels helps ensure a safe living environment.

The Concord, 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.