Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Holden, WV

Q: What if radon is still high after mitigation?

• <div><p>You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.</p></div>

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 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: What are the benefits of radon mitigation?

• <div><p>Mitigation reduces radon levels, protecting your health and complying with safety standards.</p></div>

Q: How long does radon mitigation take?

• <div><p>Installation typically takes 1-2 days, depending on the system and property layout.</p></div>

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Holden, WV?

Select your specific project to find the pro for you.

Verified Reviews for Radon Detection And Reduction pros in Holden, WV

*The Angi rating for Radon Detection And Reduction companies in Holden, 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 Holden, 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 November 01, 2025

Reviewed in November 2025
Cornerstone Renovations - Noah provided a flawless removal of old shingle and we back with everything new in one day. His communication wss on point and as far as I’m concerned, they are the best contractors I have ever hired and I will use them again very shortly.
Cornerstone Renovations WV LLC
Request a quote
Reviewed in March 2025
We were moving out of a townhouse with multiple flights of stairs. Fortunately, the movers were careful and strategic, and ensured that nothing was damaged during the tricky descent. We couldn?t be more pleased!
Paramount Van Lines
Request a quote
Reviewed in September 2024
Space Air Duct Cleaning exceeded my expectations. They explained the process, answered all my questions, and left my ducts spotless. Iâ m breathing easier now!
Build Up Remodeling and Construction
Request a quote
Reviewed in September 2024
They built my deck kept my property clean and were very respectful
Better Built
Request a quote
Reviewed in June 2024
Customer service was exceptional.. I appreciated all their help. The work crew ,Zac and James explained what they were doing and why, not to mention, being new to the area these two fellas were very kind to an old lady! Price wise, extremely reasonable! Would definitely call them again if...
Superior Pocahontas
Request a quote
Reviewed in June 2024
David came out quickly when we called him and got the job finished on time. He does excellent work and cleaned up after he completed the job. Highly recommend!
David's Handyman Service
Request a quote
Reviewed in February 2024
A very professional company that listens to their customer and explains their projects thoroughly. Jeremy answered every question with great detail. Porter Contracting is an astute and well structured company!
Porter Contracting LLC
Request a quote
Reviewed in February 2024
I would recommend The Bigley Group for any excavation service. Brent was quick to respond and stayed in touch with me. The service provided by them was beyond my expectations and I will for sure use them for any excavation services I may need going forward!
The Bigley Group, LLC
Request a quote
Reviewed in November 2023
Mycal and his crew cleared a Power Line Right of way for me that was over one half mile long and done a quick and outstanding job. Will use again on the next clearing job.
Better Property Management and Construction
Request a quote
Reviewed in March 2023
He has gone above and beyond to help me, he was just excellent!
KB's Handyman Service
Request a quote

Find Radon detection and reduction specialists in Holden

SWAT Environmental, Inc.

5.0(

)

Serving Holden, WV and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"The gentleman who installed the equipment was prompt, friendly and competent."

Response time12 hrs

Recommended by100%of homeowners

Request Quote

Radon Detection and Reduction questions, answered by experts

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

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 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.

Mitigation reduces radon levels, protecting your health and complying with safety standards.

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

The Holden, 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.

See all articles

Alison Kasch
•
Apr 6, 2026Apr 6, 2026
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.
Mitchell Grant
•
Mar 18, 2026Mar 18, 2026
How Much Does a Radon Mitigation System Cost? [2026 Data]
The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
Angi
•
Mar 18, 2026Mar 18, 2026
How Much Does Radon Testing Cost? [2026 Data]
Find out what impacts radon testing costs, including average prices for DIY kits and professional services, so you can protect your home and budget confidently.
Amy Freeman
•
Apr 5, 2026Apr 5, 2026
Who Installs Radon Mitigation Systems?
Radon is a gas that you can't see or smell and is harmful to your health. If your home has radon, you need to know who installs radon mitigation systems.
Jacqueline DeMarco
•
Apr 10, 2026Apr 10, 2026
What Is Radon Testing?
What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.
Audrey Bruno
•
May 3, 2026May 3, 2026
How to Test for Radon in Your Home
Knowing how to test for radon will keep your home free and safe from this odorless gas—you just have to decide whether to do it yourself or hire a pro.