Top-rated radon detection and reduction specialists.

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

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

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

*The Angi rating for Radon Detection And Reduction companies in Gilmanton, 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 Gilmanton, 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 June 28, 2026

Find Radon detection and reduction specialists in Gilmanton

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

Serving Gilmanton, 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 rate89%
7 neighbors recently requested a quote
Request Quote
Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
4.7(
12
)
Radon Gas - Abatement

Serving Gilmanton, 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 Gilmanton, 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 Russell Inspection Services Facebook
Russell Inspection Services Facebook
3.9(
17
)
Radon Gas - Testing

Serving Gilmanton, NH and surrounding areas

In business since 1985

"I had Russell Installations install a metal roof and I was very happy I hired them. I would hire them again. They did the job in the amount of time they told me it would take. Pete is truthful and easy to get in touch with. Not like so many other contractors. Great job. thanks."
Vinyl siding and trim
170 year old colonial
2 Car garage
New construction home
2 front windows before i

+8

Recommended by75%of homeowners
Request Quote
Avatar for Pineland Home Inspections LLC
Pineland Home Inspections LLC
5.0(
3
)
Radon Gas - Testing

Serving Gilmanton, 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
Radon Detection and Reduction questions, answered by experts

The average radon mitigation system uses about 876 kWh of electricity per year, although the exact amount of electricity used will vary depending on the size of the radon fan. Once the system is installed, the annual increase to your energy bill could range from $30 to $300 per year, again depending on the size of the fan.

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

If your home has a sump pit, you can integrate it with a radon mitigation system. You can accomplish this by sealing the pump cover with an airtight lid that accommodates radon vent pipes and sump pump hoses. This allows the vent pipe to redirect the radon gas outside of your home.

Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.

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

The Gilmanton, 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