Top-rated radon detection and reduction specialists.

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

Enter your ZIP and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

Find Radon detection and reduction specialists in Keene

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
168 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
50 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

Norway Hill Home Inspections

58 Norway Hill Road
4.00(
2
)

Norway Hill Home Inspections

58 Norway Hill Road
4.00(
2
)
Customers say: True professional
10 years of experience

Every home has a story, we are here to help your new home tell you that story. At Norway Hill Home Inspections we listen. Not only do we listen to your wants and needs in a new home. We also listen to the story that your new home is trying to tell. We then communicate that story into a detailed written report that will help you understand your new homes, needs, and wants.

"Inspectors tripped two circuit breakers and shut off the water pump circuit breaker, I didn't know until I had no water later in the day. They claimed my bathroom GFI was defective. The GFI is only 6 months old and is used on a daily basis with my hairdryer. It will shut off properly when the buttons are pressed and resets properly as well. Mud was tracked all over the carpets upstairs. Claimed the "foundation stones were loose" but it was a new small hallway addition on new pressure treated wood. The stones outside were loose and laid against the wood so that it coordinated with the original stone foundation. All they had to do was move a rock and they would have seen it. These guys were young and obviously weren't experienced with antique houses."

Donna B on March 2018

Every home has a story, we are here to help your new home tell you that story. At Norway Hill Home Inspections we listen. Not only do we listen to your wants and needs in a new home. We also listen to the story that your new home is trying to tell. We then communicate that story into a detailed written report that will help you understand your new homes, needs, and wants.

"Inspectors tripped two circuit breakers and shut off the water pump circuit breaker, I didn't know until I had no water later in the day. They claimed my bathroom GFI was defective. The GFI is only 6 months old and is used on a daily basis with my hairdryer. It will shut off properly when the buttons are pressed and resets properly as well. Mud was tracked all over the carpets upstairs. Claimed the "foundation stones were loose" but it was a new small hallway addition on new pressure treated wood. The stones outside were loose and laid against the wood so that it coordinated with the original stone foundation. All they had to do was move a rock and they would have seen it. These guys were young and obviously weren't experienced with antique houses."

Donna B on March 2018

Avatar for Cube Home & Commercial Inspections & Appraisal Svs

Cube Home & Commercial Inspections & Appraisal Svs

PO Box 21781
5.00(
4
)

Cube Home & Commercial Inspections & Appraisal Svs

PO Box 21781
5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

"Cube Home & Commercial Inspection and Appraisal Management Services" is a Nationally Certifed Home and Commercial Inspection Agency, South Carolina Licensed (RBI 48507) Home Builders Inspector and an Approved US Department of Housing and Urban Development (Hud) 203K Consultant/Inspector (P1710), Vermont Licensed Appraisal Management Services Agency which currently Serving All of Southern and Centeral Vermont,Cheshire County, New Hampshire, Hilton Head Island and Beaufort County in South Carolina and Northern Georgia with Offices in Southern Vermont and Hilton Head Island,South Carolina

"Cube Home & Commercial Inspection and Appraisal Management Services" is a Nationally Certifed Home and Commercial Inspection Agency, South Carolina Licensed (RBI 48507) Home Builders Inspector and an Approved US Department of Housing and Urban Development (Hud) 203K Consultant/Inspector (P1710), Vermont Licensed Appraisal Management Services Agency which currently Serving All of Southern and Centeral Vermont,Cheshire County, New Hampshire, Hilton Head Island and Beaufort County in South Carolina and Northern Georgia with Offices in Southern Vermont and Hilton Head Island,South Carolina

Avatar for Northeast Water Wells Inc

Northeast Water Wells Inc

50 River St
2.33(
3
)

Northeast Water Wells Inc

50 River St
2.33(
3
)
Customers say: Quick response
59 years of experience

Northeast Water Wells has been providing quality water systems throughout Massachusetts and New Hampshire since 1966. We are fully licensed and insured in both states. Being a third generation company Northeast Water Wells focus has always been on the complete system beginning with the well and continuing with our ongoing customer support. At Northeast Water Wells Inc not only do we specialize in Water Well real estate testing but also install and service complete water well pumping systems, install artesian water wells, Geothermal well installation, emergency service and so much more. Northeast Water Wells not only specializes in residential applications but we also cover the following applications as well; Commercial systems, Industrial systems, Municipal systems, Community Wells Systems, Geothermal Wells, Agricultural Water systems and Irrigation Wells. At Northeast Water Wells are services are not limited to well and pump installation we also have a plethora of other services available. Northeast water wells experienced technicians also specialize in Artesian Water Well Abandonment, Well Rehabilitation, Water Well Chlorination, Submersible water pumps, Jet pumps, Constant Pressure Pumps, Pressure Boosting Pumps, Solar/ wind powered pumping systems. Water Pressure holding tanks, Atmospheric Water Holding tanks, Water Quality/ Quantity testing, water conditioning and treatment, filtration, sanitizers, water softeners, hydrofracture, zone fracture, Water Well Maintenance and Well Efficiency Audits. Northeast Water Wells Inc has very strict employee policies including but not limited to the following; Detailed saftey policy, Osha 10, A No tolerance Drug and Alcohol Policy managed by a third party compliance company, routine background and driving record checks. The saftey of not only our employees but also our clients is our top priority.

Northeast Water Wells has been providing quality water systems throughout Massachusetts and New Hampshire since 1966. We are fully licensed and insured in both states. Being a third generation company Northeast Water Wells focus has always been on the complete system beginning with the well and continuing with our ongoing customer support. At Northeast Water Wells Inc not only do we specialize in Water Well real estate testing but also install and service complete water well pumping systems, install artesian water wells, Geothermal well installation, emergency service and so much more. Northeast Water Wells not only specializes in residential applications but we also cover the following applications as well; Commercial systems, Industrial systems, Municipal systems, Community Wells Systems, Geothermal Wells, Agricultural Water systems and Irrigation Wells. At Northeast Water Wells are services are not limited to well and pump installation we also have a plethora of other services available. Northeast water wells experienced technicians also specialize in Artesian Water Well Abandonment, Well Rehabilitation, Water Well Chlorination, Submersible water pumps, Jet pumps, Constant Pressure Pumps, Pressure Boosting Pumps, Solar/ wind powered pumping systems. Water Pressure holding tanks, Atmospheric Water Holding tanks, Water Quality/ Quantity testing, water conditioning and treatment, filtration, sanitizers, water softeners, hydrofracture, zone fracture, Water Well Maintenance and Well Efficiency Audits. Northeast Water Wells Inc has very strict employee policies including but not limited to the following; Detailed saftey policy, Osha 10, A No tolerance Drug and Alcohol Policy managed by a third party compliance company, routine background and driving record checks. The saftey of not only our employees but also our clients is our top priority.

Breer Radon Systems

P. O. Box 364
5.00(
4
)

Breer Radon Systems

P. O. Box 364
5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Radon testing and installation of radon air and water mitigation systems for homes in Vermont, West Central New Hampshire and Eastern Central New York. With over 45 years in building homes I am able to install systems within the home where possible.

Radon testing and installation of radon air and water mitigation systems for homes in Vermont, West Central New Hampshire and Eastern Central New York. With over 45 years in building homes I am able to install systems within the home where possible.

Avatar for Able Home Inspection Inc

Able Home Inspection Inc

172 Washington St
4.85(
59
)

Able Home Inspection Inc

172 Washington St
4.85(
59
)
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

We are Independent Home Inspectors, providing valuable inspection information conveyed through a detailed report with photos, since 1983. Our home inspections reveal the condition of structural, electrical, heating, cooling, plumbing, roofing, chimneys, fireplaces, windows, doors, siding and many other home components. Price shopping home inspectors? Have you checked if your potential home inspector:

"Evan was awesome. He was quick to respond when I called and made schedule adjustments to fit us in on the only day and time we had available. He was easy to communicate with whether it was phone call text or email. On the day of the inspection he was there early to do the exterior and went over everything with me outside before the realtors got there. When we were inside he was meticulous and explained things to me every step of the way. You could tell he cares about what he does and I felt like he was looking out for us as the buyers. He was a funny guy who you want to have a beer with after and made the experience very pleasant. I would definitely recommend Evan and would use him again in the future. I think his pricing is fair and while it may look like we paid more than others it’s because we added a radon test and water quality test."

Andrew D on June 2018

We are Independent Home Inspectors, providing valuable inspection information conveyed through a detailed report with photos, since 1983. Our home inspections reveal the condition of structural, electrical, heating, cooling, plumbing, roofing, chimneys, fireplaces, windows, doors, siding and many other home components. Price shopping home inspectors? Have you checked if your potential home inspector:

"Evan was awesome. He was quick to respond when I called and made schedule adjustments to fit us in on the only day and time we had available. He was easy to communicate with whether it was phone call text or email. On the day of the inspection he was there early to do the exterior and went over everything with me outside before the realtors got there. When we were inside he was meticulous and explained things to me every step of the way. You could tell he cares about what he does and I felt like he was looking out for us as the buyers. He was a funny guy who you want to have a beer with after and made the experience very pleasant. I would definitely recommend Evan and would use him again in the future. I think his pricing is fair and while it may look like we paid more than others it’s because we added a radon test and water quality test."

Andrew D on June 2018

Avatar for Coletta Radon Systems

Coletta Radon Systems

430 Tirrell Hill Rd
5.00(
17
)

Coletta Radon Systems

430 Tirrell Hill Rd
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

Showing 1-10 of 13
Radon Detection and Reduction questions, answered by experts

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.

Costs depend on property size, test types, and additional services like mold sampling.

What is radon? It’s a radioactive gas that naturally occurs in the ground, forming as uranium and thorium decay. It has no color or odor, so you don’t know if it’s seeping into your building’s foundation. Regular exposure to radon gas increases your chances of suffering from lung cancer. Radon testing measures the air inside your house for the presence of radon gas. If detected, the test will measure the severity of radon levels in your home’s air.

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

It is possible to test for radon yourself using DIY radon test kits, but these at-home test kits should never be a replacement for professional radon testing. DIY test kits can provide some information about radon exposure in your house, but your indoor temperature and humidity can affect the results, as can improper usage of the test kit. You could save yourself some money by hiring a radon professional to begin with, and when it comes to your family’s safety, hiring an experienced professional to do the testing is usually the best option.

The Keene, 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

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"