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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: Why is my radon mitigation system so loud?

• <div><p>Your radon mitigation system may be loud because it&rsquo;s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.</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>

Q: How do I test for radon gas?

• <div><p>Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.</p></div>

Q: How long does the radon abatement process usually take?

• <div><p>Mitigation can take several days depending on home setup, equipment accessibility, and achieving effective diffusion system sealed efficiency.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Duncan, OK

*The Angi rating for Radon Detection And Reduction companies in Duncan, OK 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 Duncan, OK 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 December 11, 2025

Reviewed in December 2025
ROCK HILL Restoration handled all our needs for our roof replacement professionally. Our rep. was very professional and kept us in the loop the whole time, and when time to replace our roof it took 2 days for demo and three days for tile installation. The work was done very thoroughly and...
Rock Hill Restoration
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Reviewed in October 2025
Excellent , easy to deal with, quick and professional installation at a reasonable price. Impressive work and people. Thanks!!
Reeves Fence Construction
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Reviewed in September 2025
Tanner does excellent work, whether it be flooring, or welding. He is precise and communicative and makes sure the job is done right the first time.
Kingdom Welding & Fab LLC
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Reviewed in August 2025
Just want to thank Oklahoma Water Professionals for coming out and testing our water to educate us on how we can improve our water quality. We had no idea the harmful effects! They installed a home water filtration system, for us. Clean and courteous group of guys. We already notice our skin...
Oklahoma Water Professionals LLC
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Reviewed in February 2025
Highly recommend! This spray foam company has done two shops for me, and their work is top-notch. Professional, efficient, and great to work with. Excellent insulation results—couldn’t be happier!"
Spray Foam Solutions
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Reviewed in January 2025
Absolutely! They were precise in all the angle cuts. They worked steadily and kept the construction area clean and uncluttered. When they finished, it was totally as clean as when they first arrived. Hired them again for a special project and as expected it was excellent.
Pencil Point Carpentry
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Reviewed in May 2024
I am very pleased with the service that Eric of Eric’s Handyman provided for me. Eric is very meticulous and detailed in his work and did an excellent job on my projects. I certainly can recommend him to anyone who wants a pleasant and efficient craftsman.
Eric's Handyman Service
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Reviewed in January 2024
I really appreciated the customer service and care that went into my roof repair. They are hard working, and will make sure the job is done well!
Linnco Roofing
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Reviewed in November 2023
Eric was always on time, did a phenomenal job, cleaned up the area afterwards and was reasonable with his charges. Trees and roof repairs looked great. Job well done.
3M odd jobs
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Reviewed in October 2023
Our Tree professionals were quick and efficient, did quality work, and did a great clean-up after the job. I recommend them highly.
Custom Tree Service
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Find Radon detection and reduction specialists in Duncan

Marshall Environmental Management - Home Facebook

New to Angi

Serving Duncan, OK and surrounding areas

In business since 1987

Free estimates

Credit card accepted

We are the premier professional industrial hygiene and consulting company in Oklahoma City. We specialize in asbestos, indoor air quality, lead and occupational monitoring. We offer the highest quality and most attentive customer service. We are known to pay exquisite attention to detail while making customer satisfaction our top priority. \n\nMold Inspections start at $550. Please call us today to schedule your appointment!

Response time1 day

Response rate100%

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White's Floor Covering

5.0(

)

Serving Duncan, OK and surrounding areas

In business since 1952

Free estimates

Credit card accepted

"Prompt, everything was good, and he answered all of my questions."

Response time7 hrs

Recommended by66%of homeowners

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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 mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

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

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

Mitigation can take several days depending on home setup, equipment accessibility, and achieving effective diffusion system sealed efficiency.

The Duncan, OK 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.
Kate Fann
•
Apr 9, 2026Apr 9, 2026
Radon Mitigation System Diagram: Understanding How It Works
You need to protect your home from radon, but what does a radon mitigation system look like? Check out this radon mitigation system diagram to learn how it works.
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.
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.