Top-rated radon detection and reduction specialists.

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

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

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

*The Angi rating for Radon Detection And Reduction companies in Williamsport, 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 Williamsport, 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 May 12, 2026

Find Radon detection and reduction specialists in Williamsport

Avatar for A&J Radon Away
A&J Radon Away
5.0(
32
)
Radon Gas - TestingRadon Gas - Abatement

Serving Williamsport, 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
Request Quote
Avatar for Ohio Radon Services, LLC
Ohio Radon Services, LLC
4.8(
26
)
Radon Gas - TestingRadon Gas - Abatement

Serving Williamsport, OH and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Highly recommend. Elijah M was very professional, thorough in his explanations, and always on time. He installed a radon reduction system in our home and walked us through the entire process. We knew everything that was happening and how everything would work before he left. He also tested the system and explained how the test worked when he came back to check the radon levels. We are very happy with the service provided and will recommend Ohio Radon Services to anyone."
Before Sump Cover Install
After Sump Pit Cover Install
Exterior Radon System
Before and after crawlspace encapsulation
Crawlspace encapsulation

+6

Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
Avatar for Beatty Home Inspections LLC
Beatty Home Inspections LLC
5.0(
4
)
Radon Gas - AbatementRadon Gas - Testing

Serving Williamsport, OH and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Beatty home inspections was awesome to work with! Being a first time home buyer, we really didn?t know much about the process or what to expect. Chris?s expertise not only made us more knowledgeable about it ourselves, but put our mind at ease that the issue would be fixed. The issue was in fact, fixed. I would recommend him tenfold to anyone looking to get a radon mitigation system put in."
Radon Install
Radon Install
Radon Install
Radon Install
Radon Install

+16

Response time2 hrs
Response rate100%
Request Quote
Avatar for Radon Pros
Radon Pros
5.0(
21
)
Radon Gas - AbatementRadon Gas - Testing

Serving Williamsport, 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 Williamsport, 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 Williamsport, OH and surrounding areas

In business since 2009

Emergency services offered

"The guys were absolutely amazing!! Very courtrous, quick, and cleanly. Just a spectacular service and crew all around!! Thank you guys so very much!!"
Remodeling - General Project
Remodeling - General Project
Remodeling - General Project
Additional Photos
Additional Photos

+4

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

Serving Williamsport, 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

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

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

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.

Mitigation reduces radon levels, protecting your health and complying with safety standards.

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 Williamsport, 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