Top-rated radon detection and reduction specialists.

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

Q: Can you remediate radon yourself?

• <div><p>There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.</p></div>

Q: What is the biggest source of radon?

• <div><p>The soil beneath your house is most likely what&rsquo;s causing an increased level of radon. This is because soil holds radioactivity for a long time and it&rsquo;s also what most buildings are built on. Another common source of radon is water from a source that hasn&rsquo;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.</p></div>

Q: Why is radon gas abatement necessary for homes?

• <div><p>Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.</p></div>

Q: How much does a radon mitigation system cost?

• <div><p>The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.</p></div>

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>

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

*The Angi rating for Radon Detection And Reduction companies in Tangent, 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 Tangent, 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 November 20, 2025

Reviewed in November 2025
Carl Berg and his crew are superb at what they do! Excellent work. Our three maples never looked so good after their expert pruning and trimming. They were very careful of all our surrounding shrubs and plants, and left the yard, driveway and street out front spotless.
LIMBWALKER TREE CARE
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Reviewed in November 2025
Removed unwanted weeds and fallen leaves around my property and cleaned up my garden beds. Did a fantastic job and got it done quicker than expected.
Soil Mates, LLC
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Reviewed in July 2025
We had a great experience with Dakota Roofing. From the first consultation to the final cleanup, everything was handled professionally and efficiently. Parker was knowledgeable, easy to communicate with, and kept us in the loop throughout the whole process. The crew was punctual, respectful of...
Dakota Roofing NW
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Reviewed in September 2024
I had an old, manufactured home that I needed tested for asbestos and demolished. Professional Abatement LLC could meet my needs. I contacted Javier, who came to the location where I discussed my needs and concerns. He explained the process of asbestos testing and demolition, going over exactly...
Professional Abatement Contracting LLC
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Reviewed in November 2023
Steven came and did a couple fir tree removals for me, he was very fair with his pricing and had a great deal of knowledge regarding tree work. Was very respectful and professional, would recommend to anyone!
Earley Arboriculture LLC
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Reviewed in October 2023
Lin is friendly, conscientious and reliable. He is a hard worker and cheerful. Lin removed five rhododendrons, removed one other shrub and pruned two more rhododendrons. These were major projects and he handled the job skillfully. We are planning on hiring Lin again in the near future.
L. Gu Trees and Beyond, LLC
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Reviewed in February 2023
We were very pleased with the job Ryan and Jacob did. They removed some limbs on an oak tree that was awkward to get at. Then they took down two Madrones. They were very neat and tidy and in fact left the area cleaner than they found it. And, if that wasn't enough, Ryan spotted a...
Tree Guy Ry, LLC
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Reviewed in December 2022
Scott, removed a fallen section of a Spruce in my backyard. He quick and efficient. He was very helpful and offered a comprehensive bid.
Treefix, LLC
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Reviewed in December 2022
Work done removing leaves from roof and gutters was well done and efficient. Also good work cleaning windows. Good detail work.
Task Genie
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Reviewed in November 2022
They were able to come out in two days. They were quick and efficient. It took about 3 hours to remove three birch trees There was no damage to any plants or the fence. They also cleaned up the debris and hauled away the wood and brush.
Bear's Tree Care
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Find Radon detection and reduction specialists in Tangent

Alpha Environmental Services Inc

4.7(

134

)

Serving Tangent, OR and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"From initial inspection to mitigation was about a week. Technician were punctual and finished within time estimated."

Response time1 day

Recommended by85%of homeowners

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Nordic Service Group, LLC

5.0(

)

Serving Tangent, OR and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Chris was fantastic to talk to about what he checks for during the inspection and what i should expect to see on his report. Chris was on time, incredibly thorough and detailed. I highly recommend him to anyone looking for a great home inspector."

Response time3 hrs

Response rate92%

33 neighbors recently requested a quote

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John's Waterproofing Co.

4.0(

)

Serving Tangent, OR and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

"You will need make sure everything is explained and understand what is included as maintenance."

+38

Response time6 hrs

208 neighbors recently requested a quote

Recommended by93%of homeowners

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SWAT Environmental, Inc.

3.9(

)

Serving Tangent, OR and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"This company was great to work with. They had an opening in their schedule and completed the job earlier than expected."

Recommended by90%of homeowners

Serving Tangent, OR and surrounding areas

In business since 2020

Free estimates

Small jobs welcome

"Reliable, thorough, and professional. Exceptional home inspection service with clear reporting and great communication. Highly recommend."

Response time5 hrs

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Inspections Unlimited From Above

5.0(

)

Serving Tangent, OR and surrounding areas

In business since 1989

Free estimates

Credit card accepted

"Very informative, ask all questions and concerns thoroughly!"

Response time1 day

Recommended by100%of homeowners

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Gorge Quality Home Inspection

5.0(

)

Serving Tangent, OR and surrounding areas

In business since 2019

"Greg is always prompt in responding to scheduling and has a quick turnaround on reports too. I like his reports because they have plenty of pictures and he takes the time with buyers to answer any questions whether it be on site or following up on the report."

Recommended by100%of homeowners

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Sexton SS

New to Angi

Serving Tangent, 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(

)

Serving Tangent, 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

Serving Tangent, 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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Showing 1-10 of 12

Radon Detection and Reduction questions, answered by experts

There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.

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.

Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

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.

The Tangent, 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
•
Mar 18, 2026Mar 18, 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.
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•
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.
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•
Mar 18, 2026Mar 18, 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
•
Apr 5, 2026Apr 5, 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
•
May 2, 2026May 2, 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
•
Apr 10, 2026Apr 10, 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.