Top-rated radon detection and reduction specialists.

Best radon detection and reduction specialists near Williamsburg, OH

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

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

*The Angi rating for Radon Detection And Reduction companies in Williamsburg, 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 Williamsburg, 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 July 29, 2026

Top-Rated Radon detection and reduction specialists in Williamsburg - Updated Nov 2026

Avatar for Complete Search Inspection, LLC
Complete Search Inspection, LLC
5.0(
82
)
Radon Gas - Abatement

Serving Williamsburg, OH and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Credit card accepted

"Radon test. Timely, efficient, honest, reasonable cost."
Replaced Radon Fan
Critter Cap
Sub-Slab Depressurization
Suction Point
Response time6 hrs
Response rate96%
28 neighbors recently requested a quote
Request Quote
Avatar for Tri-State Radon and Mold, Inc.
Tri-State Radon and Mold, Inc.
4.8(
66
)
Radon Gas - AbatementRadon Gas - Testing

Serving Williamsburg, OH and surrounding areas

In business since 2010

Free estimates

Warranties offered

"Andy from Tristate was a real professional. He was prompt, knowledgeable and the entire analysis was completed on time with an easy to understand report. We will use this company every 2 years to monitor radon. We could not be more pleased with Andy and Home Builder! John Seifert"
Recommended by98%of homeowners
Request Quote
Avatar for The Ohio Home Inspections Co
The Ohio Home Inspections Co
4.0(
7
)
Radon Gas - AbatementRadon Gas - Testing

Serving Williamsburg, OH and surrounding areas

In business since 2003

Free estimates

Credit card accepted

"Kevin was very thorough, easy to work with, and provided an excellent report. He also continues to send monthly newsletters at no additional charge that have very helpful tips and information about home maintenance."
Additional Photos
Additional Photos
Recommended by71%of homeowners
Request Quote
Avatar for Paramount Restoration
Paramount Restoration
4.6(
65
)
Radon Gas - AbatementRadon Gas - Testing

Serving Williamsburg, OH and surrounding areas

In business since 2011

Emergency services offered

Credit card accepted

"They were awesome! We have had Stains resurface after other companies did our carpets, but not with Paramount! Super happy with results! Our carpet is 20yrs old, and still salvageable."
Recommended by92%of homeowners
Request Quote
Radon Detection and Reduction FAQs, answered by experts

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.

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 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).

The fan that pulls the radon out of the air needs to run continuously, so you may see an increase in your electric bill once you install the mitigation system. Additionally, you may see an increase in your heating or cooling bills, as the fan can cause some loss of hot or cool air.

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 Williamsburg, 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