Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Ontario, OR

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Ontario, OR?

Select your specific project to find the pro for you.

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

*The Angi rating for Radon Detection And Reduction companies in Ontario, OR 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, OR 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 January 20, 2026

Find Radon detection and reduction specialists in Ontario

Avatar for Presidential Inspections, LLC
Presidential Inspections, LLC
4.1(
51
)

Serving Ontario, OR and surrounding areas

Approved

In business since 2004

Free estimates

Small jobs welcome

"Craig Burton, the person who responded to my call and conducted the air quality testing was highly professional and enlightened me about the process from start to finish. Beyond the actual samples taken indoors and outside my home to set up the differential readings needed, he took moisture & thermal readings in the area of concern. I felt confident when samples were sent off that mine would not be confused with anyone elseâ s and that the manner in which they were conducted would assure accurate testing."
Improperl Installed Insualtion
Visible Mold
Frozen Pipes
No vapor barrier in the crawl space
Worn Roof

+3

Response time8 hrs
6 neighbors recently requested a quote
Recommended by79%of homeowners
Request Quote
Radon Detection and Reduction questions, answered by experts

Abatement includes sealing entry points and venting with systems that reduce radon levels below recommended EPA limits. It is handled by certified professionals.

Yes, many systems include warranties for performance. Confirm terms with your installer.

Ideally, no one will live in a house with elevated radon levels, as prolonged exposure increases the risk of serious health issues like lung cancer. However, homes with radon can be made safe through mitigation systems, such as active soil depressurization. Testing for radon regularly and addressing high levels helps ensure a safe living environment.

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, OR 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