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Verified Reviews for Radon Detection And Reduction pros in Rapid City, SD

*The Angi rating for Radon Detection And Reduction companies in Rapid City, 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 Rapid City, 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 May 13, 2026

Find Radon detection and reduction specialists in Rapid City

Avatar for ALO Radon
ALO Radon
4.9(
29
)
Radon Gas - AbatementRadon Gas - Testing

Serving Rapid City, SD and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Anthony was quick to respond, and within a few days, we were on his calender. When he arrived, he recommended a larger fan than originally quoted, and explained why (add'l cost was minimal). Cometed work in a thorough and timely manner, explaining everything along the way. Would strongly recommend ALO Radon to EVERYONE! Anthony is a breath of fresh air, in an area that is somewhat service challenged. Thanks so much!"
Our Work
Our Work
Our Work
Our Work
Our Work

+13

Response time3 hrs
Response rate94%
Recommended by92%of homeowners
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Avatar for Rapid Radon Removal
Rapid Radon Removal
5.0(
2
)
Radon Gas - AbatementRadon Gas - Testing

Serving Rapid City, 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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Avatar for Blackburn Foundation Repair, LLC
Blackburn Foundation Repair, LLC
4.6(
23
)
Radon Gas - AbatementRadon Gas - Testing

Serving Rapid City, SD and surrounding areas

Approved

In business since 1992

Free estimates

Warranties offered

"They were very quick and seems like quality work. Guys were super friendly, answered all my questions and were very patient with my 3 y/o who constantly wanted to talk to them as they were carrying buckets in and out. Pretty spendy but i think drain tiling is expensive regardless."
Crawl Space Repair
Crawl Space Repair
Response time1 day
96 neighbors recently requested a quote
Recommended by80%of homeowners
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Avatar for Black Hills Radon
Black Hills Radon
New to Angi
Radon Gas - AbatementRadon Gas - Testing

Serving Rapid City, 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.

1 neighbors recently requested a quote
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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.

No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.

Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home’s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.

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.

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 Rapid City, 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.

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