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Q: What would cause radon in a house?

• <div><p>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.</p></div>

Q: Can I install my own radon mitigation system?

• <div><p>A <a href="https://www.angi.com/articles/can-homeowners-install-radon-mitigation-systems.htm">homeowner can install a radon mitigation system</a> on their own. But it&rsquo;s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.</p></div>

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: Do air purifiers help with radon?

• <div><p>No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.</p></div>

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>

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

*The Angi rating for Radon Detection And Reduction companies in Malden, 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 Malden, 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 19, 2026

Reviewed in April 2026
Benjamin has been great. Both with his work performance and his attitude. He finds out what you need and what works for you. He’s already replaced much of the plumbing at my home and I’ll be using him for other projects too.
Provance Construction
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Reviewed in November 2025
Anthony is very dependable/timely with Getting on the project and focused on completed on time and in a quality manner.
The Honey Do Crew
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Reviewed in June 2025
I have called Hall?s Service on several occasions and have always had reliable and quick services to fix my air conditioner at my home and also on my rental properties. I would definitely use them again and also recommend them for your HVAC service.
Halls Service Company
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Reviewed in January 2024
They have completed several projects of drainage tile installation, road repair and septic tank installation. All projects were completed on schedule and an excellent manner.
HeartLand Dirt Works, Inc.
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Reviewed in December 2022
Jeffery is very customer oriented and is always on time and reliable.
Legacy Pro Lawn Care, LLC
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Reviewed in October 2022
They cut tree while I was at work. Came home and couldnâ t tell they had done anything. ( except the tree was gone and all the debris) . Very,very happy!
Beckett's Tree Service & Landscaping
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Reviewed in August 2022
Greg does good work, courteous and professional and listen to what you want.
Hill & Hill
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Reviewed in August 2021
The team at Lion Heating & Air do awesome work. I needed climate control in my workshop thus was looking for a mini split system. David and crew came out the day I called to assess my setup and began immediately ordering a system. My shop is not your typical setup but they managed the...
Lion Heating & Air
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Reviewed in March 2021
Super professional, after the introduction they went to work finding my raccoon problem and they were quiet and effective
ProTech P.C. & Termites
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Reviewed in January 2021
The workers was very polite and got the job done quickly and efficiently
T&A remodeling - Home Facebook
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Find Radon detection and reduction specialists in Malden

Municipal Environmental Services

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Serving Malden, MO and surrounding areas

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In business since 2025

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We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

12 neighbors recently requested a quote

Serving Malden, MO and surrounding areas

In business since 2023

Free estimates

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"I was extremely happy with the Quality Air Test that Mr Clark provided. It was reasonably priced and done effectively and efficiently… Results were received in a timely manner as he explained. He answered any questions I had and was professional and polite… I highly recommend HASS Consulting…"

Response time1 day

Recommended by75%of homeowners

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Radon Detection and Reduction questions, answered by experts

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.

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

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.

No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.

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

The Malden, 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

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.
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.
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.
Dan Simms
•
Apr 5, 2026Apr 5, 2026
5 Questions to Ask About Radon Gas Abatement
Radon is a radioactive gas that can enter a home from the ground. Prepare yourself for mitigation by answering these questions before hiring a pro.
Audrey Bruno
•
May 2, 2026May 2, 2026
Can a Homeowner Install a Radon Mitigation System?
Can a homeowner install a radon mitigation system? While some parts of the project are fine for DIY, you should leave the meat of the task to a licensed professional.