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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: How often should you replace a radon fan?

• <div><p>Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.</p></div>

Q: What are the health risks associated with radon exposure in homes?

• <div><p>Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.</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>

Q: How long does the radon abatement process usually take?

• <div><p>Mitigation can take several days depending on home setup, equipment accessibility, and achieving effective diffusion system sealed efficiency.</p></div>

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

*The Angi rating for Radon Detection And Reduction companies in Carroll, 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 Carroll, 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 August 15, 2025

Reviewed in August 2025
I wanted an assessment of my existing attic insulation. They came and assessed the insulation, noted it was in good condition and of adequate thickness, and said no work needed to be done. I am satisfied with this assessment.
S & K Insulation Services
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Reviewed in July 2025
Pauley home inspection did a fantastic job in walking us through all the potential problems with our 1st home, from minuscule problems to major issues. Very professional and likeable personality. Answered all of our questions. Overall I can recommend Pauley home inspection for anyone in need of...
Pauley Home Inspection, LLC
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Reviewed in December 2024
Seamlessly. Steve took care of everything and made the process painless. He was very thorough and kept us up to date on the permit process. Hire him. He won't disappoint.
OPTIMAL PERFORMANCE ARCHITECTURE
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Reviewed in July 2024
They communicated very well. Showed up on time for appointment. Worked well and efficient. Was very respectful and understanding.
B and N Remodeling Repair
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Reviewed in June 2024
Andrea does a great job. Accommodating and easy to work with. Would highly recommend her to all my family and friends.
THE PERFECT SHADE LLC
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Reviewed in March 2023
I was happy with the company. They are very professional and the work looked excellent. I would hire them again
Tiguila Construction
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Reviewed in November 2022
Worker was very efficient and professional.
Bath Planet of Des Moines
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Reviewed in August 2022
Orellana was quick to respond to my request and was able to take care of my roof repair the next day.
Orellana Construction LLC
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Reviewed in March 2022
Wonderful product, service, and attitude. Pete is highly knowledgeable.
Computer Repair & Service
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Reviewed in March 2021
Excellent they worked around us while living there. Professional, knowledgeable and customer oriented. I would recommend them to anyone.
Zanella Construction
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Find Radon detection and reduction specialists in Carroll

Iowa Radon Defense Northwest

4.7(

)

Serving Carroll, IA and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"Radon mitigation work was great. Duct cleaning is something I will not recommend from this company. Team started to cutopen HVAC duct and later figured out the machine is not working , followed different approach to clean each vent. I contacted sales person and he said it is going to be same results either way and same price was charged. Charged 1.7k for 3400 sq ft home for duct cleaning."

Crawlspace Encapsulation with Radon Mitigation

Roof Penetration Discharge Pipe with Roof Boot

+23

Response time1 day

29 neighbors recently requested a quote

Recommended by96%of homeowners

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Milledge Construction

5.0(

)

Serving Carroll, 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

36 neighbors recently requested a quote

Recommended by100%of homeowners

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Home Sweet Home Inspect Iowa Facebook

4.8(

)

Serving Carroll, 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

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Radon Detection and Reduction questions, answered by experts

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.

Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.

Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.

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.

Mitigation can take several days depending on home setup, equipment accessibility, and achieving effective diffusion system sealed efficiency.

The Carroll, 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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