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Top-Rated Radon detection and reduction specialists in Harpers Ferry - Updated Nov 2026

Avatar for NextDay Inspect
NextDay Inspect
4.9(
526
)
Radon Gas - Testing

Serving Harpers Ferry, WV and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Emergency services offered

"It all went very well Azmi came out and checked all areas of my home for Mold, particulate, and Radon as well as other gases, we opted for complete screening but they offer all size packages"
Inspections with Matthew
Inspections with Larry
Inspections with Dimitri
Inspections with Rhonda
Cracks in the Foundation- Here we find moderate cracks in the foundation, with evidence that they've been repaired before.

+738

Response time8 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
5.0(
2
)
Radon Gas - Abatement

Serving Harpers Ferry, 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
Avatar for Flood Crew LLC
Flood Crew LLC
4.6(
40
)
Radon Gas - AbatementRadon Gas - Testing

Serving Harpers Ferry, WV and surrounding areas

In business since 2008

Free estimates

Emergency services offered

*24 Hours Emergency Service Response Call 571-332-3890*\n\n*Financing available for select areas*\n\nFlood Crew is an one stop shop cleaning & restoration provider. We work with all insurance carriers and offers a free assessment.\n\nThroughout our history, we have developed superior technology and processes with one goal in mind – a healthy indoor environment! We are the choice for many homeowners, realtors, and businesses.\n\nFlood Crew is a full cleaning & restoration company with multiple locations. We believe in providing top-notch service when you need us most. You can be assured that every job is done with the highest of skills.\n\nService areas - Virginia, West Virginia, Maryland, DC\n\n Call our office at 571-332-3890

After carpets were cleaned.
Before and after of Medallion
After color sealed
Apartment carpet cleaning
Drying bathroom wood subfloor from kitchen using indirect control heat, controlled by thermostat we set in place

+57

Recommended by88%of homeowners
Avatar for Rebuilders
Rebuilders
4.5(
2
)
Radon Gas - Testing

Serving Harpers Ferry, WV and surrounding areas

In business since 1993

Emergency services offered

Credit card accepted

Rebuilders specializes in emergency commercial restoration across the Mid-Atlantic servicing West Virginia, Pennsylvania, Ohio, and Maryland, ensuring minimal downtime so you can get back to business as quickly as possible.

Mountaineer Field-house
Mountaineer Field-house
After restoration of this charming bungalow!
Mountaineer Field-house
Mountaineer Field-house

+13

Recommended by100%of homeowners
Radon Detection and Reduction FAQs, answered by experts

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.

Radon is the number one non-smoking cause of lung cancer in the United States, but it can cause some other concerning side effects in the meantime. If you have a raspy voice, chest pains, trouble breathing, difficulty swallowing, or any of the above, don’t hesitate to perform radon testing and install a mitigation system as soon as possible.

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

Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home’s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.

The Harpers Ferry, 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.