Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Darby, MT

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 is radon gas abatement professionally handled?

• <div><p>Abatement includes sealing entry points and venting with systems that reduce radon levels below recommended EPA limits. It is handled by certified professionals.</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 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: Do air purifiers help with radon?

• <div><p>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.</p></div>

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

*The Angi rating for Radon Detection And Reduction companies in Darby, 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 Darby, 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 January 12, 2026

Reviewed in January 2026
Hello! I am a contractor in the Bitterroot Valley specializing in residential framing and exterior timber work. I have worked with Lasting Decks for a while now, and have been impressed with their quality and professional workmanship. Their friendly and knowledgeable personnel have been very...
Lasting Decks LLC
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Reviewed in June 2025
Everything went great. Tanner showed up when he said he would and did great work. Would definitely recommend.
The gutter guy of Montana llc
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Reviewed in April 2025
Great company. Quality work at a fair price! Jerry and Chris are hard workers who can do most anything. Carpentry, electrical, plumbing… they can do it all, and do it well and on time. Great communication and scheduling. You can’t go wrong with them.
Mountain Valley Development, LLC
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Reviewed in August 2024
These guys are great and I will never use anyone else for roofing needs. I have dealt with a lot of different contractors over the years but hands-down Double L Roofing is the best. Very professional, superb quality, great price, courteous, reliable and polite. Thank you Double L Roofing team!
Double L Roofing, Inc.
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Reviewed in June 2024
ItÃ¢Â Â s so nice to find a company that you can trust to do great work in a timely manner. Luke was extremely professional and kept a clean worksite. I will definitely be recommending them.
Built Right Construction
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Reviewed in June 2023
The team was punctual, professional and friendly. They not only fixed the problem, but took photos of the finished project. They communicated the expectations and procedure through the whole process. We will definitely use for our next project. They kept the work area clean as they went.
Mountain Air Roofing And Coating, LLC
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Reviewed in May 2023
Troy came out to our home and did a service change and added plugs for a freeze dryer Our service upgrade was much needed due to being over 30 years old. His experience and attention to detail was much needed on this project and was executed greatly. We will be using attaboy services again...
Attaboy Services, LLC
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Reviewed in October 2021
Great communication from start to finish. Move was from Oregon to Hamilton MT. Tanner and his crew did a great job of loading. Sergio was our truck driver and managed the unloading. He actually unloaded almost half of the truck load as he waited for the local labor to arrive and help with the...
PDX Movers, LLC
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Reviewed in April 2019
Very professional, offered great advice and options. Wasn t able to cover the cost at this time.
Eco Green Sprinkler & Repairs, Inc.
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Reviewed in November 2017
Nathan was on time, very knowledgeable, and wasted no time solving the problem. I would not hesitate to recommend Nathan to any of my friends. GREAT JOB!
Garage Door Service
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Find Radon detection and reduction specialists in Darby

Affordable Radon Services, LLC

4.6(

265

)

Serving Darby, MT and surrounding areas

In business since 2011

Free estimates

Warranties offered

"Brandon with Affordable Radon came out to install a mitigation system. Brandon was AWESOME, professional, polite, informative and did a wonderful job! I would highly recommend him to anyone needing your service. He went above and beyond! ***** :)"

Response time5 hrs

Recommended by97%of homeowners

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Gallatin Home Inspections, LLC

5.0(

)

Serving Darby, MT and surrounding areas

In business since 2017

Free estimates

Credit card accepted

I am here to help you make one of the most important decisions in your life, the purchase of your new home. When you hire us you can be confident that you will gain the knowledge necessary to make an informed decision on your new investment. Contact me now to begin getting your home inspection under way.

Response time5 hrs

Recommended by100%of homeowners

Serving Darby, 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

Serving Darby, 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.

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Cover Your Assets Home Inspection, LLC

New to Angi

Serving Darby, MT and surrounding areas

In business since 2010

Credit card accepted

It can be a daunting task looking for not only the right home inspecor for your needs, but also the right inspector for you. We, at Cover Your Assets Home Inspection, Llc completely understand what you are going through. With over 30 years in the construction industry, we provide a quality, detailed inspection of your residential or commercial property, from foundation to roof, and everything in between. Your inspection will provide you with a room by room overview of systems and structure, and provide detailed photographs for clarity. We also believe communication is key and invite all our clients to accompany us during the inspection, ask questions, and get to know your home.\nGive us a call, we guarantee your inspection will be scheduled within 48 hrs.

Response time4 hrs

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TCH Builders & Remodeling

4.0(

)

Serving Darby, 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 questions, answered by experts

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.

Abatement includes sealing entry points and venting with systems that reduce radon levels below recommended EPA limits. It is handled by certified professionals.

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.

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.

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.

The Darby, 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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Mar 18, 2026Mar 18, 2026
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How Much Does Radon Remediation Cost? [2026 Data]
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Who Installs Radon Mitigation Systems?
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