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

"Had a radon system installed are leaves were in the 20s and the installation they are down to .4 thank you again ð  Â"
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 PuroClean Home Savers
PuroClean Home Savers
4.8(
8
)
Radon Gas - Testing

Serving Williamsport, OH and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Basement flooded. They were one of several companies we could call per insurance adjuster. Promptly returned call, came by same day and would have started job then. Showed up when said they would; worked fast and efficiently and were very courteous and answered our questions; Would use again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

Response time3 days
Response rate100%
5 neighbors recently requested a quote
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

"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
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

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

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.

The average radon mitigation system uses about 876 kWh of electricity per year, although the exact amount of electricity used will vary depending on the size of the radon fan. Once the system is installed, the annual increase to your energy bill could range from $30 to $300 per year, again depending on the size of the fan.

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 cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

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