Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Hereford, SD

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: How long does radon mitigation take?

• <div><p>Installation typically takes 1-2 days, depending on the system and property layout.</p></div>

Q: How do you remove radon from your home?

• <div><p>You can vent radon out of your house sometimes by simply opening a window, but it won&rsquo;t remove the source, and will likely rise above recommended levels quickly. A professional will be needed to assess your home, and determine the best strategy for radon removal. Active radon sump pumps and soil depressurization systems are often used to forcefully vent the radon from your home.</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>

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Verified Reviews for Radon Detection And Reduction pros in Hereford, SD

*The Angi rating for Radon Detection And Reduction companies in Hereford, SD 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 Hereford, SD 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 April 30, 2026

Reviewed in April 2026
Dalton drove out to the ranch outside Rapid City, SD several times to take care of the shower and the kitchen sink. My mom is 90 years old. Dalton not only fixed everything, he also was so kind and courteous to my mom. When mom mentioned the roof had a hole in it. He climbed up and took...
Loyal Plumbing Heating and Cooling
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Reviewed in October 2025
Rylen was responsive and and showed up within a couple of hours to review my project and provide an estimate. Within a day of my acceptance he purchased and delivered supplies and started work. The project was completed within his estimate, his work is precise and meticulous. He cleaned up and...
Nexus Variety Services LLC
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Reviewed in August 2024
These guys were great! They removed and replaced a large section of concrete basement floor. This was all hand work. They had to wheel all the rubble out and the new concrete in. They showed up on time and worked hard. They kept in contact via text and phone. The end product was very good.
Double H Contracting, LLC
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Reviewed in July 2024
Ewalt Construction came to my project and gave me a quote in a timely manner. When the materials came in they came and did an excellent job. They made sure to go over all of the locations of the downspouts. They cleaned up afterwards and the job looked terrific. Thanks Tom & Candie for...
Ewalt Construction
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Reviewed in June 2024
They were safe, friendly and efficient. They communicated all aspects of the project to me clearly. Matt was the main guy and he knew his job well. I will miss my 54 year old Birch tree. It had a good life and the hail storm weakened it to the point of death. I recommend these guys. They...
American Tree and Forestry Care, LLC
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Reviewed in March 2024
They have cleaned a lot for us, they are reliable and thorough! They go above and beyond what is expected. Priced fair and does a great job! Great company!
Top of the Pines, LLC
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Reviewed in December 2023
Ray did an amazing job of explaining the process and answering all of our questions. They had good communication through the whole process and there were no surprises. They even installed ahead of time and worked around our schedule to get it done. Amazing customer service.
Renewal by Andersen of Rapid City
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Reviewed in May 2023
I hired this company to do a radon test. Our house tested pretty high, even with a current mitigation system running. He gave me a timely and very reasonable estimate for a mitigation system.
ALO Radon
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Reviewed in April 2023
Robert and team were very professional, thorough, and timely with the painting project.
Airless Painting Solutions
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Reviewed in November 2022
Refinished a back porch with sanding and paint. Very friendly customer service and easy to work with.
Marlons Repair
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Find Radon detection and reduction specialists in Hereford

ALO Radon

4.9(

)

Serving Hereford, SD and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Anthony was very polite and knowledgeable. The hole job was done in two days. Radon readings went from 14 to 34 down to 0.4, we are very happy ."

+13

Response time3 hrs

Response rate94%

Recommended by92%of homeowners

Serving Hereford, SD and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"He's extremely knowledgeable and practical, very down to earth. I think he could charge more, his pricing is very good. I would recommend him to anyone and I have already done so."

Response time6 days

Recommended by100%of homeowners

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Blackburn Foundation Repair, LLC

4.6(

)

Serving Hereford, SD and surrounding areas

Approved

In business since 1992

Free estimates

Warranties offered

"Excellent service! Pro was nice, easy to work with, professional! Never would have known he was here, he cleaned the working area so well! I would definitely recommend Blackburn Basement!!"

Response time1 day

90 neighbors recently requested a quote

Recommended by80%of homeowners

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Black Hills Radon

New to Angi

Serving Hereford, SD and surrounding areas

Approved

In business since 2022

Free estimates

Black Hills Radon is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

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Black Hills Professional Home Inspections LLC

New to Angi

Serving Hereford, SD and surrounding areas

In business since 2010

Top rated inspector in the Black Hills area

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Empire Home Inspections, LLC

New to Angi

Serving Hereford, SD and surrounding areas

In business since 2022

Free estimates

Credit card accepted

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!\n\n

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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.

Installation typically takes 1-2 days, depending on the system and property layout.

You can vent radon out of your house sometimes by simply opening a window, but it won’t remove the source, and will likely rise above recommended levels quickly. A professional will be needed to assess your home, and determine the best strategy for radon removal. Active radon sump pumps and soil depressurization systems are often used to forcefully vent the radon from your home.

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.

The Hereford, SD 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

Angi
•
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.
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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 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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•
May 2, 2026May 2, 2026
Can a Homeowner Install a Radon Mitigation System?
Can a homeowner install a radon mitigation system? While some parts of the project are fine for DIY, you should leave the meat of the task to a licensed professional.
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•
May 2, 2026May 2, 2026
How to Get Rid of Radon in Your Home
Radon can seep into your home through cracks and small openings. Here's how to get rid of radon and why you need to do it.
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May 21, 2026May 21, 2026
How to Hire a Radon Mitigation Service
Need to find a qualified radon mitigation service? Learn how to hire the right pro, from certifications to questions to ask, to protect your home.