Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Belle Fourche, 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: 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>

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: How much electricity does a radon mitigation system use?

• <div><p>The average radon mitigation system uses about 876 kWh of electricity per year, although the exact amount of electricity used will vary depending on the size of the radon fan. Once the system is installed, the annual increase to your energy bill could range from <b>$30 to $300 per year</b>, again depending on the size of the fan.</p></div>

Q: How often should you replace a radon fan?

• <div><p>Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.</p></div>

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Belle Fourche, SD?

Select your specific project to find the pro for you.

Verified Reviews for Radon Detection And Reduction pros in Belle Fourche, SD

*The Angi rating for Radon Detection And Reduction companies in Belle Fourche, 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 Belle Fourche, 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 18, 2026

Reviewed in May 2026
They did a top notch job. They communated well and listened to what we needed. I would recommend to all of my family and friends.
Tibbetts Landscaping
Request a quote
Reviewed in March 2026
TJ was very thorough in his explanation of the project and giving us our options. The installation of the spray foam exceeded our expectations. He worked around our remodel and is willing to come back in phases as we complete a room and shuffle our belongings. We appreciate the communication,...
Walking 4, LLC
Request a quote
Reviewed in January 2025
Jimmy from ClearSite Services LLC contacted me promptly and arrived the same morning to handle snow removal. He was professional, friendly, and did an excellent job clearing my driveway. I?m extremely satisfied with the service and highly recommend them!
ClearSite Services, LLC
Request a quote
Reviewed in March 2024
Dave was very friendly and helpful. Worked in the cold was very informative and was very patient. Was awesome explained everything. Jumped up and down on the seat to prove it was strong. Tyler was great to work with.
Your Home Improvement Company, LLC
Request a quote
Reviewed in September 2023
Matt is an Arborist and knows a lot about the care of trees.
American Tree and Forestry Care, LLC
Request a quote
Reviewed in May 2023
Excellent work; very conscientious and thorough. Would highly recommend.
Black Hills Dust N Clean
Request a quote
Reviewed in May 2023
Audley was very professional and a great guy! Highly recommend him!
Simpson Gutters & Repair
Request a quote
Reviewed in June 2022
David was quick to call, prompt with the estimate and got to the job within 2 weeks. Very happy with the work and communication!
Deer Mountain Gutter, LLC
Request a quote
Reviewed in August 2021
He did a very thorough job and it was great attention to detail. He was always on time and I'm very satisfied with the service.
Carrie's Cleaning Services
Request a quote
Reviewed in June 2021
Helpful. Knowledgeable. Fair. Did what they said they would do and were timely. Pleasant and great to work with.
Garage Door Pros
Request a quote

Find Radon detection and reduction specialists in Belle Fourche

ALO Radon

4.9(

)

Serving Belle Fourche, 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

Request Quote

Blackburn Foundation Repair, LLC

4.6(

)

Serving Belle Fourche, 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

89 neighbors recently requested a quote

Recommended by80%of homeowners

Request Quote

Black Hills Radon

New to Angi

Serving Belle Fourche, 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.

Request Quote

Empire Home Inspections, LLC

New to Angi

Serving Belle Fourche, 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

Request Quote

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 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.

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

The average radon mitigation system uses about 876 kWh of electricity per year, although the exact amount of electricity used will vary depending on the size of the radon fan. Once the system is installed, the annual increase to your energy bill could range from $30 to $300 per year, again depending on the size of the fan.

Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.

The Belle Fourche, 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.
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.
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.
Amy Freeman
•
Apr 9, 2026Apr 9, 2026
What You Need to Know Before Refinishing a Basement
Thinking about refinishing your basement? A bit of planning can go a long way. Here's everything you need to know to get started.
Amy Freeman
•
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.
Angi
•
May 21, 2026May 21, 2026
How to Hire a Radon Testing Pro
Learn how to hire a qualified radon testing pro for your home. Find certified professionals, understand costs, and get expert tips to protect your family.