Get matched with top radon detection and reduction specialists in Helena, MT
Top-rated radon detection and reduction specialists.

Need a pro for your radon detection and reduction project in Helena, MT?

Select your specific project to find the pro for you.

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

*The Angi rating for Radon Detection And Reduction companies in Helena, 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 Helena, 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 April 20, 2026

Find Radon detection and reduction specialists in Helena

Avatar for Affordable Radon Services, LLC
Affordable Radon Services, LLC
4.6(
265
)

Serving Helena, 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
Request Quote
Avatar for Gallatin Home Inspections, LLC
Gallatin Home Inspections, LLC
5.0(
2
)

Serving Helena, 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
Request Quote
Kamps Squared Home Inspections, LLC
5.0(
1
)

Serving Helena, MT and surrounding areas

In business since 2021

Free estimates

Offers commercial services

Kamps Squared Home Inspections, LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations

Response time3 hrs
Request Quote
Radon Detection and Reduction questions, answered by experts

Ideally, no one will live in a house with elevated radon levels, as prolonged exposure increases the risk of serious health issues like lung cancer. However, homes with radon can be made safe through mitigation systems, such as active soil depressurization. Testing for radon regularly and addressing high levels helps ensure a safe living environment.

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

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.

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

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

The Helena, 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