How do you prevent radon in your home?

• <div><p>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. </p><p>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.</p></div>

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

• <div><p>No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. 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 action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.</p></div>

Q: Do radon mitigation systems decrease home value?

• <div><p>No, radon mitigation systems do not decrease home value or make a home harder to sell. In areas where homes experience similar radon exposure risks, a radon mitigation system is viewed as an improvement. Potential homebuyers often opt to buy a home with a radon mitigation system already installed to reduce the risk of cancer for their families.</p></div>

Q: Can I use my sump pit for radon mitigation?

• <div><p>If your home has a sump pit, you can integrate it with a radon mitigation system. You can accomplish this by sealing the pump cover with an airtight lid that accommodates radon vent pipes and sump pump hoses. This allows the vent pipe to redirect the radon gas outside of your home.</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>

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Verified Reviews for Radon Detection And Reduction pros in Colfax, CA

*The Angi rating for Radon Detection And Reduction companies in Colfax, CA 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 Colfax, CA 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 December 14, 2025

Reviewed in December 2025
Honestly, this company is great. Tree Walkers service and staff of arborists were knowledgeable, courteous and professional. They offered us sound advice for the care and maintenance of our trees and left the yard clean and clear of debris We will be using their services again (and again) and...
Tree Walker
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Reviewed in September 2025
We had 3 days of tree work, brush clearing and weed eating along with chipping and removing everything. Fantastic job.
AA Tree Care, LLC
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Reviewed in April 2023
I hired run forest run to remove trees and mastication. The work was done when he said, and as he said. For getting rid of ladder fuels the mastication shreds and chips and puts everything on the ground. Really fire safe, which was what we were looking for. We didn't need the trees bucked...
Run Forest Run Brush Clearing
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Reviewed in April 2023
Just had Rick and the crew from Flying Squirrel Tree Service come and take down some huge pines (100 feet plus) for the second time. Super easy to deal with. Quick to respond, even when I had some requests while they were on sit. Property was cleaned up and looked great when they were done. Will...
Flying Squirrel Tree Care, Inc.
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Reviewed in January 2023
They responded very fast, and came out the same day. Unfortunately I bought the wrong size garbage disposal, so I ordered the correct one and they came out the day it arrived and Davion is an excellent plumber! I'm very impressed and happy we hired this company!
All Day Plumbing-Unlicensed Contractor
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Reviewed in January 2022
Tom and his crew of experts went above and beyond for us. We had a large tree land on out house. Chase Tree Service responded and had it removed before a huge winter storm., allowing us to tarp our damaged roof. This week they removed the remaining hazard trees. Quick, clean, friendly, and the...
Chase Tree Service
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Reviewed in January 2022
My utility pole was knocked down by a tree. Gilwee assessed, quoted and repaired accurately and timely! They took all the worry away and handled it smoothly and got it done quickly. I really appreciated the excellent communication along the way!
Gilwee Electric, Inc.
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Reviewed in October 2021
Very efficient and explained every step of process . Tricky situation to diagnose and find, but they did and fixed the problem.
New Flow Plumbing and Rooter, Inc.
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Reviewed in June 2021
Hayden and Dhillon were fantastic to work with. The price was as quoted and was very fair. They were very efficient and cleaned the entire area around the house afterward. These guys know what they are doing. Very professional. You won't find a better company to clean your roof and remove the...
Spectrum Pressure Washing
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Reviewed in April 2021
Jason responded immediately and is extremely professional, and friendly . He explained everything to me so I understood my system and what it needed. His price was very reasonable and well worth it. I highly recommend him.
Perry's Landscaping
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Radon Detection and Reduction questions, answered by experts

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. 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 action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

No, radon mitigation systems do not decrease home value or make a home harder to sell. In areas where homes experience similar radon exposure risks, a radon mitigation system is viewed as an improvement. Potential homebuyers often opt to buy a home with a radon mitigation system already installed to reduce the risk of cancer for their families.

If your home has a sump pit, you can integrate it with a radon mitigation system. You can accomplish this by sealing the pump cover with an airtight lid that accommodates radon vent pipes and sump pump hoses. This allows the vent pipe to redirect the radon gas outside of your home.

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.

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.

The Colfax, CA homeowners’ guide to radon detection and reduction services

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