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Best radon detection and reduction specialists near North Salem, NY

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Top-Rated Radon detection and reduction specialists in North Salem - Updated Nov 2026

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

Serving North Salem, 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 North Salem, 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
2 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 North Salem, NY and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"Doug Urisko of MDL Radon Mitigation and Measurement LLC was extremely helpful and knowledgeable with the issues I was experiencing with my radon water mitigation system. He offered information and his experience to resolve the issues with my water system. He took his time to help me troubleshoot these issues and help me understand what I can do in the future. I am beyond appreciative of Doug?s help and would highly suggest MDL Radon for any of your radon mitigation needs!"
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 North Salem, 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 Phase 1 Restoration Inc.
Phase 1 Restoration Inc.
4.7(
21
)
Radon Gas - Testing

Serving North Salem, 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 North Salem, 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%
Recommended by87%of homeowners
Avatar for The Lab
The Lab
New to Angi
Radon Gas - Testing

Serving North Salem, NY and surrounding areas

Approved

In business since 2020

Emergency services offered

Small jobs welcome

The Lab is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Response time1 day
1 neighbors recently requested a quote
Avatar for Family Home Inspections, Inc.
Family Home Inspections, Inc.
4.3(
45
)
Radon Gas - Testing

Serving North Salem, 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

Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.

The lifespan of a radon mitigation system depends on the type of system and its maintenance. With proper care, a system can last for many decades. Passive systems tend to last longer as they have fewer components that require replacement. Active systems, which have more moving parts like fans, generally have a shorter lifespan. For instance, water filtration devices and active pressurization systems require more frequent maintenance. While the system as a whole is durable, the radon fan in an active system typically has a lifespan of 5 to 10 years and will need to be replaced. As long as the fan is working, the mitigation system should function correctly.

The fan that pulls the radon out of the air needs to run continuously, so you may see an increase in your electric bill once you install the mitigation system. Additionally, you may see an increase in your heating or cooling bills, as the fan can cause some loss of hot or cool air.

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 North Salem, NY 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.