# Radon Mitigation Greenfield, IA | 5-Year Warranty, 24/7

> Radon testing and mitigation in Greenfield and Adair County, including homes on private wells. 5-year warranty.

URL: https://radonmitigationdesmoines.com/service-areas/greenfield/

![Radon technician arriving at a central Iowa home with a radon monitor](/images/misc/radon-technician-walking-up-the-driveway-of-a-cent.webp)

location\_on Serving Greenfield & nearby areas

# Radon Mitigation in Greenfield, Iowa

Last updated: October 27, 2026

Greenfield is the Adair County seat, with older homes around the courthouse square and homes being rebuilt after the May 2024 tornado. We test rebuilt homes and set up radon-resistant construction.

-   verifiedIowa HHS credentialed
-   schedule24/7 booking
-   shield5-year warranty

Request a Quote

[/contact/ →](/contact/)

 

phone\_in\_talk (515) 218-7447

[tel:+15152187447 →](tel:+15152187447)

-   verified Iowa HHS Credentialed
-   workspace\_premium NRPP / NRSB Certified Techs
-   shield 5-Year Warranty
-   support\_agent 24/7 Support

Know the risk

## Radon Mitigation Questions in Greenfield

The local problem

### Rebuilding after the 2024 Greenfield tornado without a radon plan

**What you notice:** A home is being rebuilt or repaired on a new foundation, and nobody has said what to do about radon.

**Why it happens here:** The May 2024 tornado destroyed many Greenfield homes, and new homes started after July 1, 2026 must include a passive radon system under Iowa HF 2297.

**How we fix it:** New construction radon systems work covers gravel, sub-slab pipe and sealing during the rebuild, followed by a radon test after move-in to see if a fan is needed.

map

### Every Iowa county is EPA Zone 1

About 71% of Iowa homes test above the EPA action level of 4.0 pCi/L. Your neighbor's number tells you little about yours, so a 48-hour test is the only way to know.

ac\_unit

### Winter makes it worse

When the furnace runs and the ground freezes, warm air rises out of the house and pulls soil gas in through the slab, sump and cracks.

real\_estate\_agent

### High results stall closings

A failed radon test during inspection can hold up a sale. We test inside your contingency window and can install and verify a system before closing.

Radon services

## Radon Services for Older Homes and Rebuilds

Testing, mitigation, new construction, commercial and maintenance from one credentialed team. The services most requested here are listed first.

construction

### New Construction Radon Systems

Passive system installs for builders, post-construction testing and passive-to-active upgrades.

View Service arrow\_forward

[New Construction Radon Systems →](/new-construction-radon-systems/)

monitor\_heart

### Radon Testing

CRM, short-term, long-term, real estate and post-mitigation radon testing by credentialed testers.

View Service arrow\_forward

[Radon Testing →](/radon-testing/)

home

### Residential Radon Mitigation

Radon systems matched to your foundation: basement sub-slab, crawlspace, exterior, waterborne and vapor intrusion.

View Service arrow\_forward

[Residential Radon Mitigation →](/residential-radon-mitigation/)

domain

### Commercial Radon Systems

Testing and mitigation for schools, HUD multifamily, offices, warehouses and vapor intrusion sites.

View Service arrow\_forward

[Commercial Radon Systems →](/commercial-radon-systems/)

build

### Radon System Maintenance

Error codes, fans, pipes and joints, and inspections for existing radon systems, including ones we didn't install.

View Service arrow\_forward

[Radon System Maintenance →](/radon-system-maintenance/)

Most local requests start with 

new construction radon systems

[/new-construction-radon-systems/ →](/new-construction-radon-systems/)

 or 

radon testing

[/radon-testing/ →](/radon-testing/)

. Every job is handled by the same Iowa HHS-credentialed crews behind our 

radon mitigation in Des Moines

[/ →](/)

, with the same post-mitigation test and 5-year warranty.

How it works

## How It Works

Most single-family homes are finished in one day, and every system is verified before we call it done.

1.  01 monitor\_heart
    
    ### Test
    
    A 48-hour continuous radon monitor test in your home, or send us an existing result.
    
2.  02 architecture
    
    ### Design
    
    We review your foundation, slab sections and sump, then pick suction points and routing.
    
3.  03 construction
    
    ### Install
    
    Credentialed techs install, seal and add a manometer. Most homes take one day.
    
4.  04 fact\_check
    
    ### Verify
    
    A post-mitigation test proves the result, backed by our 5-year warranty.
    

## Rebuilding? Plan for Radon Now

Send your result and foundation type for a written quote. Every system is verified with a post-mitigation test and covered by our 5-year warranty on systems and installs.

phone\_in\_talk (515) 218-7447

[tel:+15152187447 →](tel:+15152187447)

 

Request a Quote

[/contact/ →](/contact/)

Why choose us

## Why Adair County Homeowners Call Us

-   check\_circleFieldstone and block foundation experience
-   check\_circleWaterborne radon systems
-   check\_circleCredentialed techs
-   check\_circle5-year warranty
-   check\_circle24/7 support

![Finished radon mitigation system on the side of an Iowa suburban home](/images/features/finished-radon-mitigation-system-with-white-pvc-pi.webp)

Client Verification

## Reviews From Local Homeowners

starstarstarstarstar

> "Stone foundation and high numbers. They sealed the walls and added suction. Big improvement."

Lois B. · Greenfield

starstarstarstarstar

> "They tested our well and the house. Straight answers on both."

Dean M. · Adair County

Read our reviews on Google open\_in\_new

[https://search.google.com/local/reviews?placeid=ChIJRTO3QJee7ocRgEpZOJOW_-U →](https://search.google.com/local/reviews?placeid=ChIJRTO3QJee7ocRgEpZOJOW_-U)

Local knowledge

## Radon Experience With Fieldstone and New Foundations

Local logistics

### Serving Greenfield and Adair County

Greenfield is southwest of the metro. We schedule visits by I-80 and **Iowa Highway 25** or Iowa Highway 92, and group nearby jobs so we can reach you on a set day. Call to find the next available date.

Local homes

### Older Square Homes and Rebuilds

Older homes near the **Adair County Courthouse** may sit on fieldstone or block foundations that leak soil gas through walls as well as floors.

Homes rebuilt after the May 2024 tornado are a chance to build radon control in from the start. We work with owners and builders on sub-slab gravel, pipe and sealing, then test after move-in. Rural homes on private wells should test water too.

### Local facts that shape the job

-   fact\_check Greenfield is the Adair County seat and uses ZIP code 50849. 
    
    (en.wikipedia.org)
    
    [https://en.wikipedia.org/wiki/Greenfield,_Iowa →](https://en.wikipedia.org/wiki/Greenfield,_Iowa)
    
-   fact\_check A violent tornado struck Greenfield on May 21, 2024, killing four people and injuring at least 35. 
    
    (en.wikipedia.org)
    
    [https://en.wikipedia.org/wiki/Greenfield,_Iowa →](https://en.wikipedia.org/wiki/Greenfield,_Iowa)
    
-   fact\_check Rebuilt single- and two-family homes started after July 1, 2026 fall under the Iowa HF 2297 passive radon requirement. 
    
    (legis.iowa.gov)
    
    [https://www.legis.iowa.gov/docs/publications/LGE/91/attachments/HF2297.html →](https://www.legis.iowa.gov/docs/publications/LGE/91/attachments/HF2297.html)
    
-   fact\_check The Adair County Courthouse and the E. E. Warren Opera House anchor the historic town square. 
    
    (en.wikipedia.org)
    
    [https://en.wikipedia.org/wiki/Greenfield,_Iowa →](https://en.wikipedia.org/wiki/Greenfield,_Iowa)
    

Where we work

## Neighborhoods and Routes We Cover in Greenfield

### Areas served

-   Greenfield town square area
-   Rebuilt neighborhoods
-   Rural Adair County

ZIP codes we cover: 50849

### Local landmarks

-   location\_onAdair County Courthouse
-   location\_onE. E. Warren Opera House
-   location\_onHotel Greenfield
-   location\_onIowa Aviation Museum
-   location\_onFreedom Rock

### How we get there

We reach Greenfield by I-80 and Iowa Highway 25 or on Iowa Highway 92, and group Adair County visits on set days.

Straight Answers

## Greenfield Radon FAQs

### We are rebuilding after the 2024 tornado. When should we plan for radon?

expand\_more

Before the slab is poured. Gravel, sub-slab pipe and sealing are far cheaper during construction. Homes started after July 1, 2026 need a passive system under Iowa HF 2297, and a test after move-in shows whether to add a fan.

### Can you mitigate fieldstone foundations near the Greenfield square?

expand\_more

Yes. Fieldstone walls often need wall sealing and careful suction placement along with a sub-slab system.

### Do you travel to Adair County?

expand\_more

Yes. We serve Greenfield and rural Adair County on scheduled days. Call (515) 218-7447 for the next available date.

Still have a question?

Our support line answers 24 hours a day, 7 days a week.

phone\_in\_talk (515) 218-7447

[tel:+15152187447 →](tel:+15152187447)

 

Send a Question

[/contact/ →](/contact/)

Nearby service areas

## Also Serving Near Greenfield

-   location\_on Adel
    
    [/service-areas/adel/ →](/service-areas/adel/)
    
-   location\_on Creston
    
    [/service-areas/creston/ →](/service-areas/creston/)
    
-   All service areas
    
    [/service-areas/ →](/service-areas/)
    

![](/images/hero/radon-technician-loading-white-pvc-pipe-and-radon-.webp)

24/7 booking & support

## Book Radon Mitigation in Greenfield

Credentialed testing and mitigation with 24/7 booking, a post-mitigation test and a 5-year warranty on systems and installs.

Request a Quote

[/contact/ →](/contact/)

 

phone\_in\_talk Call (515) 218-7447

[tel:+15152187447 →](tel:+15152187447)

-   verifiedIowa HHS credentialed
-   shield5-year warranty
-   fact\_checkPost-mitigation test