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  • Average homeowner rating star icon5
    Average homeowner rating
  • Verified reviews icon11
    Verified radon detection and reduction services reviews

Verified Reviews for Radon Detection And Reduction pros in Delaware, OH

*The Angi rating for Radon Detection And Reduction companies in Delaware, OH 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 Delaware, OH 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 March 26, 2026

Find Radon detection and reduction specialists in Delaware

Avatar for A&J Radon Away
A&J Radon Away
5.0(
32
)

Serving Delaware, OH and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"This was a great experience from start to finish. They arrived on time got and got the work done with zero mess even though this involves drilling a large hole in the basement floor. The system did what it’s supposed to do and reduced radon levels to almost 0. I am very happy with this company and would highly recommended them.The price was great too."
Response time1 day
4 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Buckeye State Radon
Buckeye State Radon
4.9(
97
)

Serving Delaware, OH and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"They installed a radon system in our home. It was a little complicated, but they completed the work fairly quickly. They were very friendly and professional, you can tell they knew what they were doing. In less than 24 hours, the radon levels in our home were normal."
Active radon system
Active radon system
Active radon system
Active radon system
Active radon system

+4

Response time7 hrs
1 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for MaGen Property Inspections and Radon Mitigation
MaGen Property Inspections and Radon Mitigation
5.0(
7
)

Serving Delaware, OH and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Great company! Price was competitive, technician showed up on time and completed the job (exterior electric Radon fan replacement) quickly. Would hire them again."
Radon Fan Installation
Radon Mitigation
3 neighbors recently requested a quote
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Avatar for Radon Pros
Radon Pros
5.0(
21
)

Serving Delaware, OH and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"Radon pros was awesome...they had clear communication throughout the process and made it happen. I don't know much about radon but the tech educated me and I didn't waste a bunch of money on a below ground vacuum."
Grove City
Basement w/ no crawl
Condo
Sfh
Full basement

+55

Response time1 day
Response rate94%
Recommended by95%of homeowners
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Avatar for Radon Systems
Radon Systems
4.8(
29
)

Serving Delaware, OH and surrounding areas

In business since 1977

Free estimates

Warranties offered

"I used Radon Systems over 20 years ago in another house and even still today they provide great service for a radon mitigation system."
External Mitigation System
Sump Suction System
Encapsulate Crawl
Encapsulate Crawl
Vapor Barrier Installed In Crawl

+9

Response time8 hrs
Response rate95%
Recommended by93%of homeowners
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Residential Radon Specialists
4.7(
76
)

Serving Delaware, OH and surrounding areas

In business since 2013

Free estimates

Warranties offered

"The installation of radon system was good. They were on time and very nice and cleaned up well afterward but have not been able to get a hold of the company since then to schedule retest. The phone number indicates that voice mail is full and have texted the number with no response and have also emailed them."
Response time50 mins
Recommended by100%of homeowners
Request Quote
Avatar for Ohio Radon Specialists, LLC
Ohio Radon Specialists, LLC
4.7(
17
)

Serving Delaware, OH and surrounding areas

In business since 2020

Free estimates

Credit card accepted

"Ohio Radon Specialists is a fantastic company to work with. They first sparked my interest by quoting me with the lowest price I received from radon companies in my area. My technician arrived on time and was very professional. My home had high levels of radon and Ohio Radon Specialists dramatically reduced the amount of radon in my home. I highly recommend them."
Response time1 day
Response rate88%
Recommended by93%of homeowners
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Avatar for Rescue Environmental
Rescue Environmental
4.9(
19
)

Serving Delaware, OH and surrounding areas

In business since 2009

Emergency services offered

"the Whole process was extremely good. We didn’t understand the whole asbestos abatement process , they explained it all very well and made us feel safe . Thanks guys"
Remodeling - General Project
Remodeling - General Project
Remodeling - General Project
Additional Photos
Additional Photos

+4

Recommended by100%of homeowners
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Showing 1-10 of 16
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.

Radon is the number one non-smoking cause of lung cancer in the United States, but it can cause some other concerning side effects in the meantime. If you have a raspy voice, chest pains, trouble breathing, difficulty swallowing, or any of the above, don’t hesitate to perform radon testing and install a mitigation system as soon as possible.

Abatement includes sealing entry points and venting with systems that reduce radon levels below recommended EPA limits. It is handled by certified professionals.

Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).

No, radon mitigation systems do not decrease home value or make a home harder to sell. In areas where homes experience similar radon exposure risks, a radon mitigation system is viewed as an improvement. Potential homebuyers often opt to buy a home with a radon mitigation system already installed to reduce the risk of cancer for their families.

The Delaware, OH 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.

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