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

> Radon testing and mitigation in Ottumwa and Wapello County. Credentialed techs and a 5-year warranty.

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

![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 Ottumwa & nearby areas

# Radon Mitigation in Ottumwa, Iowa

Last updated: October 27, 2026

Ottumwa is the Wapello County seat, split by the Des Moines River, with historic bluff-top neighborhoods and a large stock of older homes. We seal older foundations and design for hillside basements.

-   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 Problems in Ottumwa Homes

The local problem

### Hillside basements in Ottumwa's bluff-top historic districts

**What you notice:** The basement is partly dug into a slope, one wall is fully buried, and the radon level is high.

**Why it happens here:** Housing climbed the river bluffs after 1859, and neighborhoods like Court Hill and Vogel Place have older homes with partial hillside basements and aging foundation walls.

**How we fix it:** Residential radon mitigation places suction near the buried side, seals the walls and sump, and routes the pipe up the downhill side of the house.

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.

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### 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.

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### 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 Wapello County

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

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/)

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### 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/)

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/)

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/)

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 

residential radon mitigation

[/residential-radon-mitigation/ →](/residential-radon-mitigation/)

 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.
    

## Older Home Testing High? Get a Plan

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 Homeowners on Both Sides of the River Call Us

-   check\_circleBlock foundation sealing
-   check\_circleDiagnostics-first design
-   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

> "Old block basement. They knew exactly what to seal. Numbers dropped a lot."

Ron S. · Ottumwa

starstarstarstarstar

> "Friendly on the phone and on site. Good follow-up after the install."

Tina V. · North Ottumwa

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

## Experience With Hillside and Older Basements

Local logistics

### Serving Ottumwa

Ottumwa is southeast of the metro on Iowa Highway 163 and **US Route 63**. We group Wapello County visits on scheduled days to cover north and south Ottumwa on both sides of the **Des Moines River** and downtown.

Local homes

### Bluff-Top and Older Homes

Ottumwa peaked at nearly 34,000 residents in 1960, so the city has a large stock of older homes. In the historic districts on the bluffs, such as **Court Hill** and Vogel Place, basements are often dug partly into the hillside.

These homes need wall and sump sealing and careful suction placement along with a sub-slab system.

### Local facts that shape the job

-   fact\_check Ottumwa is the Wapello County seat, uses ZIP code 52501, and is split into northern and southern halves by the Des Moines River. 
    
    (en.wikipedia.org)
    
    [https://en.wikipedia.org/wiki/Ottumwa,_Iowa →](https://en.wikipedia.org/wiki/Ottumwa,_Iowa)
    
-   fact\_check Ottumwa peaked at 33,871 residents in 1960 and had 25,529 in 2020. 
    
    (en.wikipedia.org)
    
    [https://en.wikipedia.org/wiki/Ottumwa,_Iowa →](https://en.wikipedia.org/wiki/Ottumwa,_Iowa)
    
-   fact\_check Residential development climbed the bluffs after the railroad arrived in 1859, and Court Hill, Vogel Place and North Fellows are historic districts. 
    
    (en.wikipedia.org)
    
    [https://en.wikipedia.org/wiki/Ottumwa,_Iowa →](https://en.wikipedia.org/wiki/Ottumwa,_Iowa)
    
-   fact\_check The 2020 census counted 11,254 housing units, with 10.3% vacant. 
    
    (en.wikipedia.org)
    
    [https://en.wikipedia.org/wiki/Ottumwa,_Iowa →](https://en.wikipedia.org/wiki/Ottumwa,_Iowa)
    

Where we work

## Neighborhoods and Routes We Cover in Ottumwa

### Areas served

-   Downtown Ottumwa
-   North Ottumwa
-   South Ottumwa
-   Court Hill
-   Vogel Place
-   North Fellows

ZIP codes we cover: 52501

### Local landmarks

-   location\_onDes Moines River
-   location\_onOttumwa Regional Health Center
-   location\_onIndian Hills Community College
-   location\_onJohn Deere Ottumwa Works
-   location\_onCourt Hill Historic District

### How we get there

We reach Ottumwa on Iowa Highway 163 and US Route 63, and use US Route 34 and Iowa Highway 149 to cover north and south Ottumwa.

Straight Answers

## Ottumwa Radon FAQs

### Can you mitigate a hillside basement in Court Hill or Vogel Place?

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Yes. We place suction near the buried side where soil gas collects, seal the walls and sump, and route the pipe up the downhill side so it stays out of sight from the street.

### Do you handle commercial buildings in Ottumwa?

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Yes. Our commercial team tests and mitigates offices, schools and other buildings in Wapello County.

### Do you cover both north and south Ottumwa?

expand\_more

Yes. We serve both sides of the Des Moines River and downtown on scheduled days, reached on Iowa Highway 163 and US Route 63.

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 Ottumwa

-   location\_on Oskaloosa
    
    [/service-areas/oskaloosa/ →](/service-areas/oskaloosa/)
    
-   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 Ottumwa

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