Top-rated radon detection and reduction specialists.

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

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: 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: 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: 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: How much does a radon mitigation system cost?

• <div><p>The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.</p></div>

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

*The Angi rating for Radon Detection And Reduction companies in Colo, 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 Colo, 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 November 03, 2025

Reviewed in November 2025
Nick came and helped remove trees and stumps on my property and it looks amazing!! Very thankful for his hard work. Would recommend.
Landscape Legends
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Reviewed in June 2023
Keeling services showed up promptly and finished the job in a timely manner. They gave a thorough bid. Nice straight lines and corners. Cleaned up after and did a great job. Nice guys and clean cut. Very happy with the professionalism. I would recommend them!
Keeling Services
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Reviewed in April 2023
Ryan and his team did an amazing job putting our fence up. They were very professional, answered any questions we had, and did a phenomenal job. Highly recommend Mck & Rae Decks + Fences!
McK & Rae Decks + Fences
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Reviewed in August 2022
They did an incredible job clean and professional
Bath Planet of Des Moines
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Reviewed in February 2022
Great service and speedy results
Big bang construction llc
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Reviewed in November 2021
Stephanie helped with carpet removal and wood floor repair. She is creative and if she doesnâ t know how to do a project she will learn. She worked quickly and efficiently until the project was done. I wish she lived closer to help with all my other projects!
A Level Above
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Reviewed in September 2021
Came when they said they would. Was efficient and very clean. Would recommend to friends and family.
DG Tree Service
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Reviewed in May 2021
I am completely pleased with the quality and swiftness of a complete roof tear off, repair, reinstall and clean up done by this Crew. Ours was a very complicated three story Queen Anne Victorian house with multiple peaks and valleys. These guys were extremely polite, respectful, talented, honest...
Barahona's Construction
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Reviewed in March 2021
Reasonably priced. removed a large tree near a building and a neighbor's fence without issues. On trimming another tree where I wasn't monitoring the work and wasn't specific about the end result it didn't turn out the way I would have done it. All in all I'm satisfied and would probably use...
DG Tree Service
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Reviewed in February 2021
They were efficient, helpful and got the job done!
Black Oak Services
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Find Radon detection and reduction specialists in Colo

Iowa Radon Defense

4.5(

)

Serving Colo, 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."

+14

Response time1 day

57 neighbors recently requested a quote

Recommended by95%of homeowners

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Milledge Construction

5.0(

)

Serving Colo, IA and surrounding areas

Approved

Free estimates

Warranties offered

Credit card accepted

"Milledge Construction installed evacuators in our homes to reduce radon levels...the installer was very professional and explained in detail what needed to be done...it is amazing how quickly the radon level has subsided in just 24 hours...the installation and equipment is of high quality...if you only suspect you have a radon infection you should call Milledge Construction first...we were very impressed with the radon reduction results...5 stars for sure..."

+56

Response time1 day

38 neighbors recently requested a quote

Recommended by100%of homeowners

Serving Colo, IA and surrounding areas

In business since 2003

Credit card accepted

"Great, they did the inspection in a timely manner & provided the report in a timely manner. The only problem was that there was no follow up or estimate for installing a radon mitigation system. We really wanted to know the cost of installation & if it was required."

Recommended by96%of homeowners

Serving Colo, IA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"Pete worked very hard to locate the vent stack to the least intrusive route. The work was very professional. Would highly recommend."

Recommended by100%of homeowners

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Home Sweet Home Inspect Iowa Facebook

4.8(

)

Serving Colo, 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

Serving Colo, IA and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"In both spoken and written communication, this company was extremely professional. In the end they were a few thousand dollars higher in their estimate than the company I went with. If not for that I would have gone with EJS and I wouldn't hesitate to mention them to friends and family. I wanted to give them a good review here simply due to the level of courtesy, promptness, and professionalism they displayed.
"

Recommended by88%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.

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.

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

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

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

The Colo, 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

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Who Installs Radon Mitigation Systems?
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Apr 5, 2026Apr 5, 2026
DIY Radon Mitigation: A Step-by-Step Guide
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Radon Mitigation System Diagram: Understanding How It Works
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