How do you prevent radon in your home?

• <div><p>Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. </p><p>Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.</p></div>

Top-rated radon detection and reduction specialists.

Best radon detection and reduction specialists near Shelby, MT

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: 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: How long can you go without a radon fan?

• <div><p>Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.</p></div>

Q: How much does it cost to replace a radon fan?

• <div><p>The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Shelby, MT

*The Angi rating for Radon Detection And Reduction companies in Shelby, MT 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 Shelby, MT 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 July 22, 2025

Reviewed in July 2025
The entire process from start to finish was a breeze. The windows look great and the function as advertised. The installation crew was amazing. We enjoyed having them around for two days. The entire house, both inside and out, was spotless. We've received a lot of compliments from friends and...
Renewal by Andersen of Montana
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Reviewed in December 2022
These guys were horrible DO NOT HIRE THEM one of the movers stole from me a bottle of change and cologne my mother's prescriptions they were hired through movinghelp.com they broke a piece of persian tiger marble from an antique that belongs to my wife they damaged my wife's bed frame and the...
Odd Job Fellas
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Reviewed in September 2022
Be wary when looking for a plumber. I contacted Edwards Plumbing and Heating for quote to install a second shower head. I was charged an $85 service fee for the quote. Over a week later, I still have not received my quote. I contacted Edwards Plumbing and Heating to ask for a refund on...
Edwards Plumbing & Heating
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Reviewed in April 2020
Very knowledgeable and friendly. Gave us multiple options to fix the issue. Highly recommend them.
Harts Plumbers, Electricians, & HVAC Technicians
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Reviewed in February 2018
Valley plumbing was quick. They took time to explain what I needed to know about water softeners before the install to make sure I was making an informed decision. The techs were on time and very professional.
Valley Plumbing Heating & Cooling
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Reviewed in December 2017
Robert responded to my work request promptly, and with little information I was able to receive a quote. He had excellent communication on the front end of the project, while we waited on weather and scheduling. Robert and Vern did a great job patching up the exterior of the door. Great work!
Golden Wood, Inc.
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Reviewed in March 2016
They were quick and thorough
FRA Landscape and Concrete, LLC
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Reviewed in July 2014
I have used them twice and they were professional and punctual to a fault! The work comes with paper work that is priceless if you ever want to sell. <br />
Overcast Restoration Inc
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Reviewed in June 2013
It has been a year since the work was done. We are beside ourselves. The yard is beautiful. We had some plants not winter well and the nursery promptly replaced the plants without complaint. Professional to the utmost. Advice on care of the yard is readily dispensed. I would not hesitate...
FORDE NURSERY-LANDSCAPING
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Top-Rated Radon detection and reduction specialists in Shelby - Updated Nov 2026

Highmark Inspections

5.0(

)

Radon Gas - AbatementRadon Gas - Testing

Serving Shelby, MT and surrounding areas

In business since 2012

Free estimates

Credit card accepted

"Ben is thoroughly knowledgeable and answered all of my questions kindly and patiently. The price was fair. I highly recommend him."

Recommended by100%of homeowners

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Caldwell Property Inspections

New to Angi

Radon Gas - Testing

Serving Shelby, MT and surrounding areas

In business since 2021

Free estimates

Credit card accepted

At Caldwell Property Inspections- our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.

Serving Shelby, MT and surrounding areas

In business since 2019

Free estimates

Credit card accepted

SKS Home Inspections is committed to excellence in every aspect of our business. We uphold a standard of integrity, bound by fairness, honesty, and responsibility. Servicing the Havre area, we are experts in the home inspection field. There is no job too big or too small for SKS Home Inspections! Please give us a call today for a quote! CALL TODAY

Response time1 day

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TCH Builders & Remodeling

4.0(

)

Radon Gas - AbatementRadon Gas - Testing

Serving Shelby, MT and surrounding areas

In business since 1999

Emergency services offered

Credit card accepted

If you dream it, we can build it. What's the biggest difference between us and them? We build to last! We offer a full line of Green and Energy Star Certified products, backed by our labor and manufacturer's lifetime transferable warranties. Credit Cards Welcome Financing Available OAC.

Recommended by100%of homeowners

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Radon Detection and Reduction FAQs, answered by experts

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

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.

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter.

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

The Shelby, MT 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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What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.