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Q: What is considered a safe or dangerous level of radon?

• <div><p>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.</p></div>

Q: What if radon is still high after mitigation?

• <div><p>You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.</p></div>

Q: What types of radon mitigation systems are available?

• <div><p>Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.</p></div>

Q: Can I install my own radon mitigation system?

• <div><p>A <a href="https://www.angi.com/articles/can-homeowners-install-radon-mitigation-systems.htm">homeowner can install a radon mitigation system</a> on their own. But it&rsquo;s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.</p></div>

Q: How long can you go without a radon fan?

• <div><p>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.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Cottage Grove, OR

*The Angi rating for Radon Detection And Reduction companies in Cottage Grove, 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 Cottage Grove, 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 September 23, 2026

Reviewed in September 2026
Absolutely highly recommend High Ridge Roofing. Dennis and Eli are great! The crew are hard working, polite and got the job done to our perfection. Reliable, on time both days, and clean up was awesome. ( even cleaned up our broken twigs from our trees) Thank you High Ridge!
High Ridge Roofing and Construction
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Reviewed in June 2026
My yard hasn’t looked this good in years! It has been covered in blackberries and another invasive species for the past 4 1/2 years since my husband’s death which was my main concern, but they had gentle suggestions for the rest. My favorite was the incorporating of my collection of large...
RIVERWEST OUTDOOR SOLUTIONS LAND MANAGMENT LLC
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Reviewed in January 2026
I have hired checkpoint electric multiple times for my electrical needs. I own an HVAC company and need professional electricians on my job sites. Johnathan and Brandon have always been top notch. I will be counting to use Checkpoint electric in the future for all of my needs!
CHECKPOINT ELECTRIC, INC.
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Reviewed in November 2025
J&J tree removal did a great Job for me took a large Elm down and cleaned up very nicely I highly recommend them and I plan to hire them back
J&J Tree Removal and Concrete LLC
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Reviewed in January 2025
I recently used a junk removal service, and I could not be happier! She was super friendly and efficient, making the whole process a breeze. She arrived on time, handled everything with care, and left my space spotless. Highly recommend for anyone needing a fast and hassle cleanup!
Tough's Clean Up and Junk Disposal
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Reviewed in October 2024
I had a big pine tree removed this week. I chose Three Peaks because of their prompt response to my request, a clear and detailed estimate and an equitable price. Calvin arrived at the designated time. Since the tree was situated on a steep hill surrounded by shrubbery and plants, a zip line was...
Three Peaks Tree Service, LLC
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Reviewed in June 2024
In searching for someone to deal with some serious roof problems, we found Brandon and Brett to be very pleasant and very informative to talk with. They offered a quality product, knew how to address our problems caused by design errors in the original construction and a poorly installed roof...
DaBella - Eugene
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Reviewed in April 2024
Iâ m so happy with my new siding and porch railings. Always on time and quality workmanship. Finished the project in a timely fashion. Went over and above with customer service. Very professional and easy to work with. Would definitely hire Steve again!!
Ironwood Builders Construction
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Reviewed in January 2024
Aaron is very knowledgeable, professional and reliable! We had him climb some 100' tall fir trees and limb them up. He did a fantastic job!
Ash Rock Tree Service
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Reviewed in July 2023
Alpine came in and repired our job whcih had been "boched" by another company. The repair man took all the time he needed to check out our system and make sure that it was repairable prior to determining what exactly needed to be done. He advised us of the problems and what parts, etc. would...
Alpine Heating & Air Conditioning
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Find Radon detection and reduction specialists in Cottage Grove

SWAT Environmental, Inc.

3.9(

)

Radon Gas - Abatement

Serving Cottage Grove, OR and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"Their service representative was efficient, professional and very informative. Very pleased with the results. Would use them again."

Recommended by90%of homeowners

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Sexton SS

New to Angi

Radon Gas - AbatementRadon Gas - Testing

Serving Cottage Grove, OR and surrounding areas

In business since 2019

Free estimates

Credit card accepted

Sexton SS proudly serves it's customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today!

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Environmental Testing & Training NorthWest

4.0(

)

Radon Gas - Testing

Serving Cottage Grove, OR and surrounding areas

In business since 2011

Free estimates

Credit card accepted

"The company rep collected site samples quickly ... in and out in about 20 minutes. And, the company turned the report around in two days. The service was a pricy, mostly due to the fixed call-out fee. The cost per sample was higher than one other instance that I know of but not unreasonable."

Response time12 hrs

Recommended by100%of homeowners

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All around Property Testing LLC

New to Angi

Radon Gas - Testing

Serving Cottage Grove, OR and surrounding areas

In business since 2021

Emergency services offered

Small jobs welcome

Veteran-owned and certified in mold, lead, water, and environmental property testing. We serve Cottage Grove and surrounding areas with fast EMSL lab results, affordable pricing, and reliable local service.

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Radon Detection and Reduction questions, answered by experts

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.

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

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

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

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.

The Cottage Grove, 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

Mitchell Grant
•
Sep 28, 2026Sep 28, 2026
How Much Does a Radon Mitigation System Cost? [2026 Data]
The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
Alison Kasch
•
Apr 6, 2026Apr 6, 2026
How Much Does Radon Remediation Cost? [2026 Data]
Get clear answers on how much radon remediation costs, including average prices, key cost factors, and tips to save money on your home’s radon mitigation.
Angi
•
Sep 23, 2026Sep 23, 2026
How Much Does Radon Testing Cost? [2026 Data]
Find out what impacts radon testing costs, including average prices for DIY kits and professional services, so you can protect your home and budget confidently.
Amy Freeman
•
Jul 9, 2026Jul 9, 2026
Who Installs Radon Mitigation Systems?
Radon is a gas that you can't see or smell and is harmful to your health. If your home has radon, you need to know who installs radon mitigation systems.
Jacqueline DeMarco
•
Jul 9, 2026Jul 9, 2026
What Is Radon and How Does It Get In Your Home?
What is radon gas? Find out what this radioactive gas is, why it is dangerous, how it gets in your home, and how to mitigate it.
Jacqueline DeMarco
•
Jul 9, 2026Jul 9, 2026
What Is Radon Testing?
What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.