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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
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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
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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

"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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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
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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

"I just put a brand new roof on my home and i called a security first inspection to come out and make sure it was done properly and he found major issues with the ventilation the roofers put on so it was worth my money to call someone out that did identify problems and i got it straightened out before it caused an issuea,"
Additional Photos
Additional Photos
Additional Photos
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Additional Photos

+2

Recommended by100%of homeowners
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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!

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Radon Detection and Reduction questions, answered by experts

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.

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.

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

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

You can vent radon out of your house sometimes by simply opening a window, but it won’t remove the source, and will likely rise above recommended levels quickly. A professional will be needed to assess your home, and determine the best strategy for radon removal. Active radon sump pumps and soil depressurization systems are often used to forcefully vent the radon from your home.

The London, OH homeowners’ guide to radon detection and reduction services

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