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

*The Angi rating for Radon Detection And Reduction companies in Ontario, 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 Ontario, 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 June 01, 2026

Find Radon detection and reduction specialists in Ontario

Avatar for Piece of Mind Radon Testing & Mitigation
Piece of Mind Radon Testing & Mitigation
5.0(
6
)
Radon Gas - Testing

Serving Ontario, NY and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

Mitigation System
Radon Mitigation
Radon Mitigation System
Radon Mitigation System
Radon Mitigation System

+1

Response time6 hrs
Response rate91%
3 neighbors recently requested a quote
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Avatar for Comprehensive Mold Management LLC
Comprehensive Mold Management LLC
4.7(
144
)
Radon Gas - Testing

Serving Ontario, NY and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"I already submitted a review but wanted to include pictures of my basement after the work was completed."
Attic Mold Remediation
Attic Mold Remediation
Basement Mold Remediation
Basement Mold Remediation
Additional Photos

+6

Response time1 day
Response rate100%
3 neighbors recently requested a quote
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Avatar for Healthy Spaces
Healthy Spaces
4.5(
50
)
Radon Gas - Testing

Serving Ontario, NY and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"Despite the storm or 2017, this company scheduled us within a couple days of the consultation and even with the power outage and heat outage they completed the job within a week. I sold the house the day after they completed the work!!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+22

Response time2 days
Response rate100%
10 neighbors recently requested a quote
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Avatar for Lozier Environmental Consulting
Lozier Environmental Consulting
5.0(
6
)
Radon Gas - Testing

Serving Ontario, NY and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"It went well. The results came back in two days and we got our certificate that the test was done"
Response time1 day
Response rate100%
7 neighbors recently requested a quote
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Avatar for Certified Radon Systems
Certified Radon Systems
5.0(
35
)
Radon Gas - Abatement

Serving Ontario, NY and surrounding areas

In business since 2007

Free estimates

Credit card accepted

"I couldn't have asked for a better experience. I checked a few Radon companies and Certified Radon was the best. They seemed to be the most knowledgeable, had the best warranty/guarantee, and actually came in cheaper than some of the others. They brought my radon level from a mid-6 to less than 1 on the first test. If you need radon services I would highly recommend."
Clean exterior
Clean exterior
Suction point
Sump pit
Clean exterior

+2

Response time12 hrs
Response rate85%
Recommended by100%of homeowners
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Avatar for Paradigm Environmental Services
Paradigm Environmental Services
5.0(
5
)
Radon Gas - AbatementRadon Gas - Testing

Serving Ontario, NY and surrounding areas

In business since 1988

Free estimates

Emergency services offered

"We hired them to do radon testing. They came at the time that worked for me and arrived on time."
Response time8 hrs
Recommended by100%of homeowners
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Showing 1-10 of 13
Radon Detection and Reduction questions, answered by experts

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. 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 preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.

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.

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.

Radon is the number one non-smoking cause of lung cancer in the United States, but it can cause some other concerning side effects in the meantime. If you have a raspy voice, chest pains, trouble breathing, difficulty swallowing, or any of the above, don’t hesitate to perform radon testing and install a mitigation system as soon as possible.

The Ontario, 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.

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