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*The Angi rating for Radon Detection And Reduction companies in Lavalette, 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 Lavalette, 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 February 16, 2026

Find Radon detection and reduction specialists in Lavalette

Avatar for Lucas Contracting, LLC
Lucas Contracting, LLC
5.0(
71
)

Serving Lavalette, WV and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"He responded to our initial inquiry promptly. Showed up on time to do the job. Very neat worker and left everything perfect. The next radon test came back extremely low so it works perfectly. I highly recommend him."
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
)

Serving Lavalette, 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.

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.

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.

The fan that pulls the radon out of the air needs to run continuously, so you may see an increase in your electric bill once you install the mitigation system. Additionally, you may see an increase in your heating or cooling bills, as the fan can cause some loss of hot or cool air.

Installation typically takes 1-2 days, depending on the system and property layout.

The Lavalette, 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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