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

*The Angi rating for Radon Detection And Reduction companies in Alton, 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 Alton, 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 November 15, 2025

Find Radon detection and reduction specialists in Alton

Avatar for Maine Radon & Water Treatment

Maine Radon & Water Treatment

5.00(
9
)
•Approved Pro

Maine Radon & Water Treatment

5.00(
9
)
•Approved Pro
Customers say: Quick response
55 local quotes requested
4 years of experience

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 Erickson Foundation Solutions

Erickson Foundation Solutions

4.56(
9
)

Erickson Foundation Solutions

4.56(
9
)
Customers say: True professional
46 years of experience

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

Avatar for Abacus Water Systems- Felder Industries

Abacus Water Systems- Felder Industries

2.75(
4
)

Abacus Water Systems- Felder Industries

2.75(
4
)
Customers say: Super punctual
29 years of experience

Abacus Water Systems is a family run business owned and operated since 1996 by Kevin Felder and son, Jacob. Abacus strives to provide you and your family with the highest quality water filtering products available with the best pricing possible without compromising quality. We take pride in knowing exactly what we are installing, how it works and the components that go with it!

Abacus Water Systems is a family run business owned and operated since 1996 by Kevin Felder and son, Jacob. Abacus strives to provide you and your family with the highest quality water filtering products available with the best pricing possible without compromising quality. We take pride in knowing exactly what we are installing, how it works and the components that go with it!

SNH Inspections & Testing Services

1.00(
1
)

SNH Inspections & Testing Services

1.00(
1
)
Customers say: Quick response
23 years of experience

SNH Inspections & Testing Services perform residential and commercial environmental testing throughout most of New England. This would include mold (surface & air) testing, radon air and water testing, well water testing, bulk asbestos testing, and HUD FHA 203K consultancy. We follow industry ethical recommendation not to combine testing with remediation. So testing is our scope of expertise. Certifications: *for Mold: ESA Cert. #0991 *for Radon: RTCA & NRSB #204050569 *for Asbestos: Pro-Lab #PLP11569 *for HUD inspections #N979 *for HUD FHA 203K Consultancy #P1618

SNH Inspections & Testing Services perform residential and commercial environmental testing throughout most of New England. This would include mold (surface & air) testing, radon air and water testing, well water testing, bulk asbestos testing, and HUD FHA 203K consultancy. We follow industry ethical recommendation not to combine testing with remediation. So testing is our scope of expertise. Certifications: *for Mold: ESA Cert. #0991 *for Radon: RTCA & NRSB #204050569 *for Asbestos: Pro-Lab #PLP11569 *for HUD inspections #N979 *for HUD FHA 203K Consultancy #P1618

THISTLE HOME INSPECTIONS

5.00(
1
)

THISTLE HOME INSPECTIONS

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

Customized inspections to suit your needs. Nationally Certified and Accredited Inspectors. Inspections Reports the same day of inspection if Needed. Detailed Report 3 BD Free consultation for as long as you own your home. All inspections conform to State, EPA, VA and FHA standards. No affiliations with any Real Estate Organizations. We do Inspections to suit our customer’s schedules. Two Inspectors looking at your purchase that means 4 to 6 hours of inspection time

Customized inspections to suit your needs. Nationally Certified and Accredited Inspectors. Inspections Reports the same day of inspection if Needed. Detailed Report 3 BD Free consultation for as long as you own your home. All inspections conform to State, EPA, VA and FHA standards. No affiliations with any Real Estate Organizations. We do Inspections to suit our customer’s schedules. Two Inspectors looking at your purchase that means 4 to 6 hours of inspection time

Avatar for Coletta Radon Systems

Coletta Radon Systems

5.00(
17
)

Coletta Radon Systems

5.00(
17
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Coletta Radon Systems was founded by Robert Coletta in March of 2007. Our main goal is to protect you and your family from the harmful effects that radon exposure can have on the respiratory system. Coletta Radon Systems can improve your indoor air quality and guarantee to reduce the radon levels in your home. Coletta Radon Systems installs energy star radon fans, water treatment systems and high efficiency heating and cooling systems. Coletta Radon Systems uses the most current products to say up-to-date and maximize your energy savings. We offer AARST/NRPP certified technicians, guaranteed results, quality workmanship and reasonable rates. Coletta Radon Systems is fully licensed and insured. Coletta Radon Systems strives to ensure that radon levels are low and customers are happy. Call us today to schedule your appointment - (603) 401-3563 or visit us at www.colettaradonsystems.com

"Rob was easy to communicate with and we were satisfied with their work. Our radon levels plummeted as a result of the system installed."

Bonnie S on March 2019

Coletta Radon Systems was founded by Robert Coletta in March of 2007. Our main goal is to protect you and your family from the harmful effects that radon exposure can have on the respiratory system. Coletta Radon Systems can improve your indoor air quality and guarantee to reduce the radon levels in your home. Coletta Radon Systems installs energy star radon fans, water treatment systems and high efficiency heating and cooling systems. Coletta Radon Systems uses the most current products to say up-to-date and maximize your energy savings. We offer AARST/NRPP certified technicians, guaranteed results, quality workmanship and reasonable rates. Coletta Radon Systems is fully licensed and insured. Coletta Radon Systems strives to ensure that radon levels are low and customers are happy. Call us today to schedule your appointment - (603) 401-3563 or visit us at www.colettaradonsystems.com

"Rob was easy to communicate with and we were satisfied with their work. Our radon levels plummeted as a result of the system installed."

Bonnie S on March 2019

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Radon Detection and Reduction questions, answered by experts

DIY kits are available for basic testing. Professional services provide comprehensive results and recommendations.

Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.

Testing typically costs between $150 and $500, depending on the method used and the number of areas tested.

No level of radon is technically safe, but because it’s everywhere—even in the air outside—it’s impossible to avoid entirely. Instead, the Environmental Protection Agency encourages taking preventative measures if the levels of radon in your home rise above 2 pCi/L. (For reference, the average radon level in homes across the United States is 1.3 pCi/L.

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. 

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

The Alton, 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.

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