Top-rated radon detection and reduction specialists.

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

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

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

*The Angi rating for Radon Detection And Reduction companies in Nelson, 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 Nelson, 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 December 15, 2025

Find Radon detection and reduction specialists in Nelson

Avatar for True North Home Inspections, LLC
True North Home Inspections, LLC
4.9(
26
)
Radon Gas - Testing

Serving Nelson, NH and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"I called John on a Thursday night looking for a 9AM, next day inspection of a property on auction that I needed inspected before I put my bid in. He answered my call, texted me, planned everything and was there at 9am ready to work. He gave us his immediate thoughts so that we could make an offer with good info and then sent us a super detailed report. I couldn't recommend him more. He gave us great peace of mind."
Response time3 hrs
Response rate88%
8 neighbors recently requested a quote
Request Quote
Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
4.7(
12
)
Radon Gas - Abatement

Serving Nelson, NH and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"The company was very easy to schedule with, and the technician was extremely friendly and efficient! I would definitely recommend them for radon mitigation systems!"
Response time6 hrs
Recommended by90%of homeowners
Request Quote
Avatar for Rhino Radon Services
Rhino Radon Services
4.2(
9
)
Radon Gas - AbatementRadon Gas - Testing

Serving Nelson, NH and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"He was on time, arrived at 9am as quoted and began to install the system. The system required two suction points and a sump pit cover. The sump pit originally had a pedestal pump in place and none of the other radon companies would change the pedestal pump to a submersible pump as required for the mitigation system to function properly. Rhino Radon not only changed the pump but installed a back flow check valve to ensure proper functioning of the system. All of the other companies said we would have to employ a plumber or a handy man to get this done. Had we gone that route the closing would not have happened. Rhino Radon gladly did all the work required and didn't even break for lunch!!! He was more concerned with getting us out of the vacant house seeing we are already down the cape. The system that involved a crawl space and being vented through the garage roof was completed immaculately and the test results came back at 0.5 pCil/L. This pleased the lender and buyer and exceeded our expectations. We highly recommend Rhino Radon Services.
"
Recommended by100%of homeowners
Request Quote
Avatar for Cube Home & Commercial Inspections & Appraisal Svs
Cube Home & Commercial Inspections & Appraisal Svs
5.0(
4
)
Radon Gas - AbatementRadon Gas - Testing

Serving Nelson, NH and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"The inspection was complete and informative.... Issues we discoved I was able to settle with the seller before I completed the puchase."
Vermont
Certified Licensed Inspectors
Certified Licensed Inspectors
Recommended by100%of homeowners
Request Quote
Avatar for Pineland Home Inspections LLC
Pineland Home Inspections LLC
5.0(
3
)
Radon Gas - Testing

Serving Nelson, NH and surrounding areas

In business since 2023

Free estimates

Small jobs welcome

"In the whole stressful home buying process he made the inspection the easiest, most stress-free part. Awesome!"
Front Steps
Main Water Line
Roof
Skylight
Bathroom Fan Vent

+3

Response time3 hrs
Response rate100%
Recommended by100%of homeowners
Request Quote
Norway Hill Home Inspections
New to Angi
Radon Gas - Testing

Serving Nelson, NH and surrounding areas

In business since 2008

Free estimates

Credit card accepted

Given the time and energy you've spent looking for your dream home, having absolute confidence that you've chosen the best home for you and your family only makes sense. Norway Hill Home Inspections can help give you that assurance. I perform efficient and accurate home inspections. I am available for home buyers, home sellers, and real estate professionals alike. Call me the next time you need an thorough inspection performed on a property of yours!

Response time5 hrs
Request Quote
Radon Detection and Reduction questions, answered by experts

Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.

Yes, many systems include warranties for performance. Confirm terms with your installer.

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

You can vent radon out of your house sometimes by simply opening a window, but it won’t remove the source, and will likely rise above recommended levels quickly. A professional will be needed to assess your home, and determine the best strategy for radon removal. Active radon sump pumps and soil depressurization systems are often used to forcefully vent the radon from your home.

The Nelson, 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