Top-rated radon detection and reduction specialists.

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Q: What steps should be taken if high radon levels are detected?

• <div><p>If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.</p></div>

Q: How often should radon levels be tested to ensure safety?

• <div><p>Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.</p></div>

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 would cause radon in a house?

• <div><p>The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.</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>

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

*The Angi rating for Radon Detection And Reduction companies in Harrisburg, 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 Harrisburg, 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 June 11, 2026

Reviewed in June 2026
Ultimate did a great job on replacing our old deck . I called and was contacted almost immediately to set up a time to get an estimate. Brock gave us different options and ideas to replace our wood deck. We chose to use composite decking and aluminum railing. Ultimate was able to schedule us...
Ultimate Flooring & Contracting
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Reviewed in May 2025
Next Level Home Care put in retaining walls, worked on regrarding, and adding a stone walk way. They did ana amazing job transforming our backyard! The retaining wall and walkway are beautiful and inviting. They were professional and easy to work with. They went above and beyond to help us...
Next Level Home Care
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Reviewed in April 2025
They were fast and efficient used a great product the roof looks great and stayed right on their bid. I’m very happy with the results.
Larson Brothers Roofing
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Reviewed in May 2024
They took down the volunteer trees and cleaned up the branches and leaves. They were very professional and I would hire them again.
Immense Services, LLC
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Reviewed in September 2023
Just had my roof v competently replaced by the J W Const crew. Less than a week btwn call-for-estimate to job-done and wd have been done sooner but I dragged my feet making up my mind. Johnâ s estimate was Not the least expensive one I got but Iâ ve gone the cheap route before and lived to...
J W Construction, LLC
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Reviewed in July 2023
The estimate and installation was all very professional and knowledgeable. It was totally effective and brought the level of radon down to less than a 0.5 reading. Would highly recommend their work.
Dakota Radon Mitigation
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Reviewed in March 2023
Arthur was respectful, timely, and efficient in his removal of a large antenna from our roof. I have full confidence in his work and would definitely hire again.
ADL Handyman
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Reviewed in May 2022
I did not knowJose before this project. We needed to have our fence and deck pressure washed and stained within a certain time frame. Jose communicates promptly and arrives on site as scheduled. The power spraying has gone well and we are awaiting the staining portion as weather permits. Morris...
Jose Martinez's Handyman Services
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Reviewed in October 2021
I had a client that had signs of bat activity in her attic. Colten was responsive and very thorough and professional in mediating the issue and preventing any further intrusion. He is a source that I can depend on to get the job done and done in the right way.
Prairie Bat Services
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Reviewed in July 2018
They matched any competitors price and took 10% more off. I don't know what the buyers tested the Radon Levels to be, but after Axium Mitigated the problem it still tested at 4.1 and it needs to be 3.9. They promptly returned to remove more dirt and the next test showed 3.9. Their work and...
Axium Inspections, LLC
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Find Radon detection and reduction specialists in Harrisburg

Blackburn Foundation Repair, LLC

4.6(

)

Radon Gas - AbatementRadon Gas - Testing

Serving Harrisburg, SD and surrounding areas

Approved

In business since 1992

Free estimates

Warranties offered

"Blackburn came out to repair my garage foundation. They were quick, efficient, and left the area in great condition."

Response time1 day

103 neighbors recently requested a quote

Recommended by80%of homeowners

Radon Gas - AbatementRadon Gas - Testing

Serving Harrisburg, SD and surrounding areas

In business since 2021

Free estimates

Credit card accepted

"Jeremy was very professional and pleasant to work with!! I have allergies and can breathe so much better in my house now!!"

Response time20 mins

Recommended by100%of homeowners

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Solar Solutions - Home Facebook

0.0(

)

Radon Gas - AbatementRadon Gas - Testing

Serving Harrisburg, SD and surrounding areas

In business since 1996

Free estimates

We have been your testing and abatement source, energy audits, remodeling, weatherization, radon mitigation, testing for mold, lead and asbestos.\nStudies have shown that homes that are efficiently built or retrofitted with energy efficient measures are not only cheaper to own, but more comfortable, and quiet. We can audit you home to evaluate the performance of your systems.\n

Recommended by100%of homeowners

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Empire Home Inspections, LLC

New to Angi

Radon Gas - Testing

Serving Harrisburg, 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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Professional House Doctors

New to Angi

Radon Gas - Abatement

Serving Harrisburg, SD and surrounding areas

In business since 2006

Free estimates

Credit card accepted

We pride ourselves in providing quality work for all of our customers. Your safety in your home or office is forefront in our minds when we work. We have built several relationships with local business and homeowners that we know will last a lifetime. When looking for a company that can give you peace of mind when working or living in your space look no further then Professional House Doctor.

Response time1 day

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Radon Detection and Reduction questions, answered by experts

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.

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 natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

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 Harrisburg, 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

Mitchell Grant
•
Aug 3, 2026Aug 3, 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
•
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
•
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.