Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Ardsley, NY

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Ardsley, NY?

Select your specific project to find the pro for you.

Verified Reviews for Radon Detection And Reduction pros in Ardsley, NY

*The Angi rating for Radon Detection And Reduction companies in Ardsley, NY 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 Ardsley, NY 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 May 08, 2026

Find Radon detection and reduction specialists in Ardsley

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

Serving Ardsley, NY and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Quick response to request for quote, performed radon test as scheduled and emailed results quickly."
Job Site
Response time2 days
7 neighbors recently requested a quote
Recommended by96%of homeowners
Request Quote
Avatar for MDL Radon Mitigation and Measurement LLC
MDL Radon Mitigation and Measurement LLC
5.0(
35
)
Radon Gas - Abatement

Serving Ardsley, 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
Request Quote
Avatar for Doctor House Inspections, LLC
Doctor House Inspections, LLC
4.9(
9
)
Radon Gas - Testing

Serving Ardsley, 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
Request Quote
Avatar for Phase 1 Restoration Inc.
Phase 1 Restoration Inc.
4.7(
21
)
Radon Gas - Testing

Serving Ardsley, NY and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Men came earlier than scheduled,went right to work,and finished the job in about an hour. They were friendly and professional,answering my questions,and cleaning up afterwards.I highly recommend them.The price was almost 5 times less than the other company I got an estimate from. Highly satisfied.
"
Additional Photos
Response time2 days
Response rate100%
4 neighbors recently requested a quote
Request Quote
Oakhill Home Inspections
5.0(
1
)
Radon Gas - Testing

Serving Ardsley, NY and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

I pride my company on reliability, great communication, integrity, and quality work. I am an expert in home inspections, mold testing and radon testing and remediation. I will do my absolute best to keep you as educated and informed on your particular inspection project. I look forward to earning your business! Book with me online or feel free to give me a call today! My focus is protecting your home investment.\n\nThank You,\nCharles Rauch\nOakhill Home Inspections

Response time5 hrs
Response rate86%
4 neighbors recently requested a quote
Request Quote
Avatar for Secure Home Inspections of NY, LLC
Secure Home Inspections of NY, LLC
4.9(
9
)
Radon Gas - Testing

Serving Ardsley, NY and surrounding areas

In business since 2018

Free estimates

Warranties offered

"His report was very detailed with pictures, he fallow up to make sure I got my report, great communication and great customer service, he didn't miss anything I didn't see"
Connecticut Condo
Electric Panel
Electric Panel
Missing Railings
Footings in a stone foundaiton

+7

Response time1 hour
Recommended by100%of homeowners
Request Quote
Avatar for Family Home Inspections, Inc.
Family Home Inspections, Inc.
4.3(
45
)
Radon Gas - Testing

Serving Ardsley, NY and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"Mine was very meticulous and honest. I appreciate him doing a whole inspection when I only had a few issues needing a check up. He was not in a rush and made sure he checked every floor and room! I would friendly hire him again!"
Mold
Start of Mold Problems
Response time3 hrs
Recommended by88%of homeowners
Request Quote
Showing 1-10 of 35
Radon Detection and Reduction questions, answered by experts

Your radon mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

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

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. 

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

The Ardsley, 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.

See all articles