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Q: How much does a radon mitigation system cost?

• <div><p>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.</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 long does a radon mitigation system last?

• <div><p>The lifespan of a radon mitigation system depends on the type of system and its maintenance. With proper care, a system can last for many decades. Passive systems tend to last longer as they have fewer components that require replacement. Active systems, which have more moving parts like fans, generally have a shorter lifespan. For instance, water filtration devices and active pressurization systems require more frequent maintenance. While the system as a whole is durable, the radon fan in an active system typically has a lifespan of 5 to 10 years and will need to be replaced. As long as the fan is working, the mitigation system should function correctly.</p></div>

Q: What types of radon mitigation systems are available?

• <div><p>Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.</p></div>

Q: Is radon a serious problem?

• <div><p>Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Black Eagle, MT

*The Angi rating for Radon Detection And Reduction companies in Black Eagle, 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 Black Eagle, 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 October 14, 2025

Reviewed in October 2025
Great working with Pete. Very prompt and really improved my deck. Love new ramp and steps!
Pete's Construction LLC
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Reviewed in October 2025
They came down and did an absolutely free roof inspection for me. All though they didn't find anything too concerning they still took pictures even and went over it with me. They are super knowledgeable in their field and I know I'll be giving them a call next hail storm.
American Roofing and Exteriors
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Reviewed in July 2025
I selected Personal Touch Home Solutions (Jim Burton) from among numerous others who also bid on the job. Jim's rates were reasonable, and his priority was making sure I was happy with the final product. The project was finishing a basement, but this also involved an extensive demo as the house...
Personal Touch Home Solutions
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Reviewed in November 2024
Chris did an awesome job. He was recommended thru a friend and was wondwerful to work with. Chris initially looked at my design and we walked thru how we would install some of the larger beams, what style I was going for and what demo we would need to accomplish. Once he came on site, we got to...
SHELTER and FORM
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Reviewed in June 2023
TOP 1 Roofing did a fabulous roof repair job after a fallen tree damaged our roof. They were able to match the shingles exactly with the originals and replace some of the wood decking below. I recommend them!!
Top 1 Roofing
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Reviewed in May 2023
Very pleased with the work. Had spring turn on and clock set. Wasn't running quite right so came back and readjusted the clock.
Dusty'S Sprinklers
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Reviewed in May 2023
This company provided meticulous attention to detail and superior craftsmanship throughout the remodel, I'm very happy with the results.
Legacy Designs LLC
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Reviewed in April 2022
Contracted by a surface warranty insurance. Minimum discussion. Fast and efficient
Scot Liggett Excavation
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Reviewed in November 2021
We used his services multiple times from tree removal to landscape help and were very pleased with every job
Tomlinson Handyman Services
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Reviewed in October 2020
We have been delighted with the service we received from Alan who helped us get our alarm system set up. Our old alarm system was old and not working. Now we have the latest and greatest.. We are in good hands and I recommend Alan and this Alarm Protection Group.
SafeStreets - ADT Authorized Provider
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Find Radon detection and reduction specialists in Black Eagle

Pillar to Post Home Inspections

4.9(

)

Serving Black Eagle, MT and surrounding areas

Approved

In business since 1998

Free estimates

Credit card accepted

"He was very thorough and gave us all of the answers we needed. We got a 90 page report with photos of some problem areas that explained everything that needed to be done. I would definitely recommend Kelly."

Response time10 mins

11 neighbors recently requested a quote

Recommended by100%of homeowners

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Inspection Advantage, LLC

4.9(

)

Serving Black Eagle, MT and surrounding areas

In business since 2018

Free estimates

Credit card accepted

"Ethan was super personable, answered all my questions, and helped me to really understand exactly what I was getting from my home purchase. I would recommend Inspection Advantage to everyone."

Home Inspection in White Sulphur Springs, MT

Response time4 hrs

Recommended by100%of homeowners

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Caldwell Property Inspections

New to Angi

Serving Black Eagle, 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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TCH Builders & Remodeling

4.0(

)

Serving Black Eagle, 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 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.

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 lifespan of a radon mitigation system depends on the type of system and its maintenance. With proper care, a system can last for many decades. Passive systems tend to last longer as they have fewer components that require replacement. Active systems, which have more moving parts like fans, generally have a shorter lifespan. For instance, water filtration devices and active pressurization systems require more frequent maintenance. While the system as a whole is durable, the radon fan in an active system typically has a lifespan of 5 to 10 years and will need to be replaced. As long as the fan is working, the mitigation system should function correctly.

Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.

Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).

The Black Eagle, 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.

See all articles

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•
Mar 18, 2026Mar 18, 2026
How Much Does a Radon Mitigation System Cost? [2026 Data]
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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.
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•
Apr 5, 2026Apr 5, 2026
How to Install a Radon Mitigation System
Did your radon test come back high? Here's what you need to know about how to install a radon mitigation system to protect your home and family.
Rachel Hoffman
•
May 2, 2026May 2, 2026
9 Reasons You Should Get a Home Inspection
A home inspection is an investment in your property's health and longevity. Discover why a home inspection is important even if you don’t plan to sell.
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•
Apr 9, 2026Apr 9, 2026
Radon Mitigation System Diagram: Understanding How It Works
You need to protect your home from radon, but what does a radon mitigation system look like? Check out this radon mitigation system diagram to learn how it works.