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*The Angi rating for Radon Detection And Reduction companies in Welch, WV 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 Welch, WV 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 16, 2026

Find Radon detection and reduction specialists in Welch

Avatar for Lucas Contracting, LLC
Lucas Contracting, LLC
5.0(
71
)
Radon Gas - Abatement

Serving Welch, WV and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"This job was installing a radon fan in the attic to make our passive radon mitigation active. Great job!"
Entry point
Entry point
Attic fan location
Attic fan location
Fan outside

+16

Response time7 hrs
Response rate86%
2 neighbors recently requested a quote
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Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
5.0(
2
)
Radon Gas - Abatement

Serving Welch, WV and surrounding areas

In business since 1988

Free estimates

Credit card accepted

SWAT Environmental has keeping homeowners safe from Radon Gas since 1988. We are the nation's largest Radon Mitigation company but we are local operated and give each customer personal, high class service! Installing over 150,000 mitigation systems, SWAT is the industry leader in Radon Awareness and Mitigation. Call us today to schedule your radon mitigation system installation for less than the cost of most major home appliances!

Response time12 hrs
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.

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

You can vent radon out of your house sometimes by simply opening a window, but it won’t remove the source, and will likely rise above recommended levels quickly. A professional will be needed to assess your home, and determine the best strategy for radon removal. Active radon sump pumps and soil depressurization systems are often used to forcefully vent the radon from your home.

Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.

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 Welch, WV 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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