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Q: How often should radon levels be tested to ensure safety?

• <div><p>Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.</p></div>

Q: How long can you go without a radon fan?

• <div><p>Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.</p></div>

Q: What level of radon is considered safe or dangerous?

• <div><p>No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.</p></div>

Q: How often should you replace a radon fan?

• <div><p>Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.</p></div>

Q: What is considered a safe or dangerous level of radon?

• <div><p>No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Hallsville, MO

*The Angi rating for Radon Detection And Reduction companies in Hallsville, MO 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 Hallsville, MO 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 14, 2026

Reviewed in April 2026
Great AC repair service—fast, professional, and honest. The technician explained everything clearly, fixed the issue quickly, and pricing was fair. Highly recommend.
Dominics HVAC Repair
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Reviewed in December 2025
This Pro and his team did a great job and promptly handled my need for a fence replacement! Not only did they efficiently demo my existing worn out fence and haul it off, they went on to build a beautiful replacement fence that completely met my needs! The whole neighborhood thinks it is...
SEB Fencing Company
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Reviewed in March 2025
Rob Watson was helpful in explaining how to use and change out my whole home filter and softener. He installed both within a few hours. The filter and softener were just recently installed, so I can?t speak to how well they?re working just yet.
Watson Plumbing LLC
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Reviewed in September 2024
Missouri Metal Roofing, along with Yolanda, Zenon, and the team, did an outstanding job replacing the roof on our house. They were highly professional, maintained a clean work environment, and communicated clearly throughout the process. The attention to detail and quality of their work exceeded...
Missouri Metal Roofing, LLC
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Reviewed in June 2024
Levi responded promptly to our need for repair and he and his crew did a thorough job. We will use them again for home improvement projects.
Slate Elite Exteriors
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Reviewed in July 2023
Beyond expectations! The landscape had overgrown with wisteria and other vines but Caden and his crew tackled it with some hard work. They were constantly in contact with us to ensure things were being done to our satisfaction. Everything they did included making sure that the yard waste was...
CG Ace Contracting
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Reviewed in May 2022
I called Hays heating and Air to help fix my AC and the Guy named Travis that showed up was super helpful and respectful. He explained everything to me and was very fast with his work. I would definitely recommend him to anyone.
Hay's Heating and Air LLC
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Reviewed in January 2022
Performed excavation and regrading of 6acres of property including removal of numerous (more than 50) large trees, thinned out an additional 4 acres of smaller trees and brush, dug a fishing pond, graded and poured RV pads. Nice people with good equipment.
Noble Excavating LLC
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Reviewed in December 2021
Lynn Crum worked with the insurance adjuster, pointing out the damaged roof areas and gutter damages. The end result is a beautiful roof, gutters, and interior ceiling repairs done professionally. I will and have recommended the company to several people. Top notch company!
TAPS Exteriors
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Reviewed in June 2021
They worked fast and left the area clean. They had the right equipment and knew how to use it.
Top Quality Landscaping, LLC
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Find Radon detection and reduction specialists in Hallsville

Full Scope Home Inspections

5.0(

)

Radon Gas - Testing

Serving Hallsville, MO and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"Randall went above and beyond what I thought would be done for a home inspection, was willing to crawl into small spaces. He did a very thorough job, and his report was very detailed, and that's why we appreciate his work."

Response time3 hrs

Response rate93%

Recommended by100%of homeowners

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SWAT Environmental, Inc.

4.5(

)

Radon Gas - Abatement

Serving Hallsville, MO and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"I would definitely recommend this company to anyone!!! I hired them and the job was done nicely, Dan O'Brien was the technician who took care of the project and he did an excellent job, he answered all of my questions and explained to me everything related to Radon gas. When he finished setting everything up and the job was completed all the working area looked super clean and the installation looks just like it is part of the house and that has been there forever. This is what I call a Perfect and Complete execution of a Radon gas mitigation project."

Recommended by97%of homeowners

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Braun's Inspection Consultants

4.7(

)

Radon Gas - Testing

Serving Hallsville, MO and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Professional and timely service provided. A thorough review by James."

Recommended by100%of homeowners

Serving Hallsville, MO and surrounding areas

In business since 2005

Free estimates

Mid MO Inspectors will provide you or your business with a full service approach to all your inspection needs. Please feel confident in contacting Mid MO Inspectors for your next inspection.

Recommended by100%of homeowners

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S & J Home Inspections - Home Facebook

New to Angi

Radon Gas - Testing

Serving Hallsville, MO and surrounding areas

In business since 2011

Free estimates

At Amerispec Home Inspections, we are your premiere source for general home inspections. Our company offers the finest in efficiency and quality. When it comes to professionalism and customer service, we are unmatched in the region. For the best of the best, call today for your next inspection!

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Radon Detection and Reduction questions, answered by experts

Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.

No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.

The Hallsville, MO 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

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•
Aug 3, 2026Aug 3, 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.
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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.
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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.
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•
Jul 9, 2026Jul 9, 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
•
Jul 9, 2026Jul 9, 2026
What Is Radon and How Does It Get In Your Home?
What is radon gas? Find out what this radioactive gas is, why it is dangerous, how it gets in your home, and how to mitigate it.
Jacqueline DeMarco
•
Jul 9, 2026Jul 9, 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.