Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in London, OH

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in London, OH?

Select your specific project to find the pro for you.

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

*The Angi rating for Radon Detection And Reduction companies in London, 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 London, 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 June 12, 2026

Find Radon detection and reduction specialists in London

Avatar for MaGen Property Inspections and Radon Mitigation
MaGen Property Inspections and Radon Mitigation
5.0(
7
)
Radon Gas - TestingRadon Gas - Abatement

Serving London, OH and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"We hired MaGen to do our Radon Mitigation, the whole process was easy and quick, the testing and abating. The owner is very sweet and does a great job at explaining and making sure everything is working. If you?re looking for someone, MaGen is a great choice, and for sure would recommend!"
Radon Fan Installation
Radon Mitigation
3 neighbors recently requested a quote
Request Quote
Avatar for Radon Pros
Radon Pros
5.0(
21
)
Radon Gas - AbatementRadon Gas - Testing

Serving London, 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
Request Quote
Avatar for Radon Systems
Radon Systems
4.8(
29
)
Radon Gas - AbatementRadon Gas - Testing

Serving London, OH and surrounding areas

In business since 1977

Free estimates

Warranties offered

"FANTASTIC CUSTOMER SERVICE, INSTALLER WAS FANTASTIC. IF YOU NEED A RADON MITIGATION COMPANY, LOOK NO FURTHER!! LUCAS IS GREAT, AS WELL AS DONNA. AND ESPECIALLY MY INSTALLER GOUGH!!"
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
Request Quote
Avatar for Rescue Environmental
Rescue Environmental
4.9(
19
)
Radon Gas - AbatementRadon Gas - Testing

Serving London, 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
Request Quote
Avatar for Amity Haven Ltd
Amity Haven Ltd
5.0(
6
)
Radon Gas - AbatementRadon Gas - Testing

Serving London, OH and surrounding areas

Free estimates

Credit card accepted

"Derrek is a very knowledgeable home inspector. He answered all my questions and taught me about the systems in the home. I would definitely recommend him to anyone buying a home!"
Hardwood Custom Sliding Doors
Home Improvement
Additional Photos
Additional Photos
Additional Photos

+19

Recommended by100%of homeowners
Request Quote
Avatar for Security First Home Inspections & Remediation
Security First Home Inspections & Remediation
4.8(
9
)
Radon Gas - AbatementRadon Gas - Testing

Serving London, OH and surrounding areas

Free estimates

Credit card accepted

"Scott was very professional and timely! He got our inspection done as soon as we needed it and we had a report in hand that day. He was very meticulous and even pointed out things that mandatory as far as the actual home inspection goes. The price couldn't have been better and for no extra charge he was able to tell us if there were and pest problems. He found some mold in our attic as well and we will be hiring him to remediate it because he did such an awesome job with our inspection!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by100%of homeowners
Request Quote
Mid Ohio Radon Experts
New to Angi
Radon Gas - AbatementRadon Gas - Testing

Serving London, OH and surrounding areas

In business since 2022

Free estimates

Offers commercial services

Mid Ohio Radon Experts LLC is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

Request Quote
Radon Detection and Reduction questions, answered by experts

Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.

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.

Your radon mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

Radon detection is crucial as prolonged exposure to radon gas, a leading cause of lung cancer, poses significant health risks in residential environments.

Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home’s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.

The London, 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.

See all articles