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Top-Rated Radon detection and reduction specialists in Jefferson Valley - Updated Nov 2026

Avatar for Lance Dorfi, LLC
Lance Dorfi, LLC
4.7(
64
)
Radon Gas - AbatementRadon Gas - Testing

Serving Jefferson Valley, NY and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Lance Dorfi was proactive, efficient, and professional. They came to every appointment on time and tailored a radon mitigation solution that reduced the levels. I would highly recommend them for radon mitigation!"
Job Site
Response time2 days
20 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for JCL Home Inspections
JCL Home Inspections
4.9(
27
)
Radon Gas - Testing

Serving Jefferson Valley, NY and surrounding areas

Approved

In business since 2015

Free estimates

Customers say: Quick response

"Very communicative (reached out right away to arrange an appointment and checked in on us). Was on time, knowledge and thorough. Our report was delivered within hours of the inspection."
Response time4 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for MDL Radon Mitigation and Measurement LLC
MDL Radon Mitigation and Measurement LLC
5.0(
35
)
Radon Gas - Abatement

Serving Jefferson Valley, NY and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"Doug was professional, timely and really took pride in his work. He took time to fully explain the process and how radon gets in the home. Our radon remediation system installation was flawless."
Typical ASD Radon System
Typical ASD Photos
Typical ASD Photos
Typical ASD Photos
Typical ASD Photos

+2

Response time6 hrs
Response rate90%
Recommended by96%of homeowners
Avatar for Doctor House Inspections, LLC
Doctor House Inspections, LLC
4.9(
9
)
Radon Gas - Testing

Serving Jefferson Valley, NY and surrounding areas

Approved

In business since 2014

Customers say: Quick response

"Olivier was terrific. He was incredibly thorough and left no detail out of his inspection or his report. He took the time necessary to inspect all elements of the inside and outside of the home, he was patient in explaining what he found, and he was able to put all his comments within a helpful perspective. I would recommend him 100% and would use him again without hesitation."
Deck issues
Oil line in concrete slab
Rusted oil tank
A boiler with a direct hot water heater
Loose electrical service entrance wire

+18

Response time4 hrs
Response rate100%
Recommended by100%of homeowners
Avatar for E&A HOME SOLUTIONS LLC
E&A HOME SOLUTIONS LLC
5.0(
7
)
Radon Gas - Abatement

Serving Jefferson Valley, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Small jobs welcome

"The Radon Mitigation Specialists showed up as planned, on time and were extremely knowledgeable about the installation of the radon mitigation system. We decided on the perfect place to put it. When I changed the installation date, they were very accommodating and professional. Once the job was complete, it was better than I had expected. The price was more than reasonable and the cleanup was wonderful. I have loved the unit ever since. I highly recommend E&A if you want the job done right at the right price. Thanks guys!!"
Response time10 hrs
Response rate98%
14 neighbors recently requested a quote
Avatar for Phase 1 Restoration Inc.
Phase 1 Restoration Inc.
4.7(
21
)
Radon Gas - Testing

Serving Jefferson Valley, NY and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"We are moving into an older house with asbestos covering on the pipes. A representative from JBH came in for an estimate and gave us a very accurate idea of the overall cost. Something that we were not able to confirm at the time of the removal...we were told this was a family-owned business and that someone from the family would come in to do the removal. Neither of the men who showed up introduced themselves as part of the family... The men from JBH showed up on time (very polite guys), removed all the asbestos, and then brought us down to show the work they had done. We were supposed to bring in an independent contractor for air monitoring, but the people we reached out to never returned our calls (they'll get their OWN review on Angie's List). In all the craziness of our move, we forgot that we never actually booked an air monitering company. We called JBH the day of the scheduled removal to let them know about the situation and to see if we should reschedule - they ended up calling someone in on our behalf to do the monitering. Not the ideal scenario, but it was great that they did the extra legwork with practically no notice. We did have to call JBH ourselves to follow up on the air testing results, which was the one downside."
Additional Photos
Response time2 days
Response rate100%
Recommended by89%of homeowners
Avatar for Expediant Environmental Solutions, LLC
Expediant Environmental Solutions, LLC
3.9(
438
)
Radon Gas - AbatementRadon Gas - Testing

Serving Jefferson Valley, NY and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"As a realtor, I found Rich from Expedient Environmental Solutions while searching for a client who needed mold remediation. He and his crew did an excellent job at a fair price. They finished on time and left the home clean. So, when I was looking personally to have basement waterproofing (interior french drains and sump pump) along with radon mitigation, I received 3 quotes, of which theirs was the most comprehensive plan, and again not the highest quote overall. They finished the work ahead of schedule by bringing four workers the second day, were respectful throughout and left the area reasonably clean. I'm confident that my days (and nights!) with the shopvac and flooded basement are finally over, and grateful they stand behind their work for a full year. Good contractors are hard to find. Glad I found them. Thanks and I highly recommend!"
Response time2 days
Response rate100%
4 neighbors recently requested a quote
Avatar for Family Home Inspections, Inc.
Family Home Inspections, Inc.
4.3(
45
)
Radon Gas - Testing

Serving Jefferson Valley, NY and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"Mike is absolutely amazing. We wanted our basement air tested so we can safely work there and he did all the tests and advised us on a number of things that have indeed greatly improved the air quality. He also volunteered to take a look through our house and he identified mold in our bathroom that I hadn't even seen! He told us exactly what to do to get rid of it and it worked. I highly recommend Mike."
Mold
Start of Mold Problems
Response time3 hrs
Recommended by88%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

Radon detection is crucial as prolonged exposure to radon gas, a leading cause of lung cancer, poses significant health risks in residential environments.

The Jefferson Valley, NY homeowners’ guide to radon detection and reduction services

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