Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Greenfield, IA

Q: What is the biggest source of radon?

• <div><p>The soil beneath your house is most likely what&rsquo;s causing an increased level of radon. This is because soil holds radioactivity for a long time and it&rsquo;s also what most buildings are built on. Another common source of radon is water from a source that hasn&rsquo;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.</p></div>

Q: Can you remediate radon yourself?

• <div><p>There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.</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: Why is radon gas abatement necessary for homes?

• <div><p>Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.</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>

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Greenfield, IA?

Select your specific project to find the pro for you.

Verified Reviews for Radon Detection And Reduction pros in Greenfield, IA

*The Angi rating for Radon Detection And Reduction companies in Greenfield, IA 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 Greenfield, IA 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 May 15, 2026

Reviewed in May 2026
Great team to work with. Always kept us in the loop. And when it came time for the install, the installer was professional and courteous and just an all around nice guy. Highly recommend
Mad City Windows & Baths
Request a quote
Reviewed in February 2025
I had the inside and outside remodeled. I came home and thought a new house had been moved in. New wood floors throughout except the bathroom, it has tile on it, new shower, toilet. Outstanding been wrapped, insulated and new siding. The house is amazing. Thank you JF Construction.
J Ford Construction LLC
Request a quote
Reviewed in March 2024
Wonderful service! Iâ ve had Leeâ s garage doors come out on two separate occasions, once to install an operator and more recently to repair and replace my garage door springs. He scheduled us right away, was extremely kind and explained everything to me! He does great work. I would highly...
Lee's Doors LLC
Request a quote
Reviewed in September 2022
Easy to work with. On time and got job done with no problems.
S & K Insulation Services
Request a quote
Reviewed in July 2021
Excellent with Sales and installation. Very Professional
Renewal by Andersen
Request a quote
Reviewed in November 2018
Courteous, let me know of delay. Did the job and was under the estimate!
Vorthmann Computer Repair
Request a quote
Reviewed in June 2018
After dealing with all the back and forth offers and realators wanting us to pay more it was nice to have a professional on our side
Southern Iowa Home Inspections, LLC
Request a quote
Reviewed in December 2017
The crew did a great job. Showed up and performed as expected. Hauled old door away. Clean up was great as well
Overhead Door Company of Des Moines™
Request a quote

Find Radon detection and reduction specialists in Greenfield

National Radon Defense Midwest

4.7(

)

Serving Greenfield, IA and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"RADON SYSTEM WAS NOT WORKING. (Installed by another company years ago). The phone contact was pleasant and efficient. The Technician came on the agreed day and the agreed time: he explained what was wrong, explained the options, then repaired the system so it is working better than it did when first installed."

Crawlspace Encapsulation with Radon Mitigation

+15

Response time1 day

36 neighbors recently requested a quote

Recommended by96%of homeowners

Serving Greenfield, IA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"We had a serious Radon issue in our home and when others couldn’t even return my calls Pete not only did, he worked hard to get us into his schedule. Extremely satisfied with Pete and the job he did. I will hire Pete for other needs around our home. Do not hesitate to hire Pete. You will be happy."

Recommended by100%of homeowners

Request Quote

Home Sweet Home Inspect Iowa Facebook

4.8(

)

Serving Greenfield, IA and surrounding areas

In business since 2020

Free estimates

Small jobs welcome

"Luis was very polite and professional! He explained the issues so I could understand. I would absolutely recommend him to others!"

+11

Response time3 hrs

Response rate88%

Recommended by100%of homeowners

Request Quote

Radon Detection and Reduction questions, 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.

There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.

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.

Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.

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.

The Greenfield, IA 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

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.
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.
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.
Merlisa Lawrence Corbett
•
May 22, 2026May 22, 2026
6 Potential Health and Safety Hazards to Avoid When Buying a House
If you’re looking to buy a house, a home inspection can uncover hidden hazards that could pose a health risk to your household. Here’s what to know.
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.