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Find Radon gas testers in Marion

Avatar for Stay Dry Waterproofing - Columbus

Stay Dry Waterproofing - Columbus

20 S 3RD ST
4.17(
47
)
Approved Pro

Stay Dry Waterproofing - Columbus

20 S 3RD ST
4.17(
47
)
Approved Pro
Customers say: Super punctual
753 local quotes requested
15 years of experience

Our team at Stay Dry Waterproofing has over 20 years of experience protecting homes in Columbus. Our team of experts has experience transforming any damp, musty, and wet basement into a comfortable dry living space. We use only tested products that are guaranteed to keep your home safe. Whether you have noticed water, mold, or musty odors emitting from your basement or crawl space, we can help. Stay Dry Waterproofing is Central Ohio's leader in Basement repair and drainage needs. Everything from Basement Waterproofing, Mold Remediation, Foundation Crack and Bowed Wall Repairs, Yard Drainage, and Crawlspace Encapsulation. Life time warranties, Free Estimates and zero percent financing options.

"Great workers and very professional"

Bev S on August 2024

Our team at Stay Dry Waterproofing has over 20 years of experience protecting homes in Columbus. Our team of experts has experience transforming any damp, musty, and wet basement into a comfortable dry living space. We use only tested products that are guaranteed to keep your home safe. Whether you have noticed water, mold, or musty odors emitting from your basement or crawl space, we can help. Stay Dry Waterproofing is Central Ohio's leader in Basement repair and drainage needs. Everything from Basement Waterproofing, Mold Remediation, Foundation Crack and Bowed Wall Repairs, Yard Drainage, and Crawlspace Encapsulation. Life time warranties, Free Estimates and zero percent financing options.

"Great workers and very professional"

Bev S on August 2024


Avatar for Buckeye Elite Property Services

Buckeye Elite Property Services

Home Office
5.00(
9
)
Approved Pro

Buckeye Elite Property Services

Home Office
5.00(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
301 local quotes requested

Buckeye Elite is pleased to work with the Hancock County Heartland Board of Realtors to service your radon needs. Buying or selling a house? We want radon testing and mitigation to be hassle free for you and the realtor.

"They did a fantastic job! On time. No problems whatsoever. We're very happy."

Katherine N on December 2023

Buckeye Elite is pleased to work with the Hancock County Heartland Board of Realtors to service your radon needs. Buying or selling a house? We want radon testing and mitigation to be hassle free for you and the realtor.

"They did a fantastic job! On time. No problems whatsoever. We're very happy."

Katherine N on December 2023


Avatar for House Doctor Pomales

House Doctor Pomales

512 Sandalwood Lane
5.00(
10
)
Approved Pro

House Doctor Pomales

512 Sandalwood Lane
5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
63 local quotes requested

Since 1994, I have concentrated on effectively diagnosing and permanently solving moisture intrusion, mold problems, and indoor air quality issues. What this means to you is that as your specialist with concentrated experience, I have probably solved your problem dozens of times before.

"Very knowledgeable, pleasant, explains things well. Provides effective solutions."

Doina B on May 2024

Since 1994, I have concentrated on effectively diagnosing and permanently solving moisture intrusion, mold problems, and indoor air quality issues. What this means to you is that as your specialist with concentrated experience, I have probably solved your problem dozens of times before.

"Very knowledgeable, pleasant, explains things well. Provides effective solutions."

Doina B on May 2024


ECO Disaster Services LLC

6700 Schrock Court
4.73(
15
)

ECO Disaster Services LLC

6700 Schrock Court
4.73(
15
)
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

We use the most advanced equipment & procedures to repair water damage & smoke damage. Whether it is mold remediation, wind damage, smoke & fire damage, water damage or disaster cleanup, our rapid response team is here to serve. Ask our emergency response experts, who are standing by 24/7 to help you in a moments notice, about our free board up service! "Female Owned, Mother Nature Approved" is not just a slogan here at ECO Disaster Services; it is a way of life. We established ECO with two main objectives; unmatched customer service and to protect and conserve Mother Nature. We are a female owned business that understands our client's needs in a time of crisis; our professional staff will walk you through every step of getting your life back to normal. Our goal simply put is to ensure our client's are 100% satisfied with the service they receive from our professional staff and we will not rest until we meet that goal. Our client's are not a number; we believe they are people that are faced with life changing incidents and should have one less thing to worry about.

We use the most advanced equipment & procedures to repair water damage & smoke damage. Whether it is mold remediation, wind damage, smoke & fire damage, water damage or disaster cleanup, our rapid response team is here to serve. Ask our emergency response experts, who are standing by 24/7 to help you in a moments notice, about our free board up service! "Female Owned, Mother Nature Approved" is not just a slogan here at ECO Disaster Services; it is a way of life. We established ECO with two main objectives; unmatched customer service and to protect and conserve Mother Nature. We are a female owned business that understands our client's needs in a time of crisis; our professional staff will walk you through every step of getting your life back to normal. Our goal simply put is to ensure our client's are 100% satisfied with the service they receive from our professional staff and we will not rest until we meet that goal. Our client's are not a number; we believe they are people that are faced with life changing incidents and should have one less thing to worry about.


Basement Remedy

6269 Lithopolis Rd
5.00(
56
)

Basement Remedy

6269 Lithopolis Rd
5.00(
56
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Basement Remedy is a small, Veteran owned & operated company specializing in Historic and Contemporary Foundation Repair, Drainage, Masonry, and more. We pride ourselves in the highest quality work, backed by warranty. We are a non-sponsored company and do not install "systems." Our methods and materials have been proven over time.

"Fantastic experience with Todd and basement remedy. Incredibly responsive (he came out and took a look same day). Knew immediately what the issue was with out stone foundation, and offered solutions that we could get done asap and fit our budget. Very happy and HIGHLY RECOMMEND for stone foundation work. We'll he bringing them back for other basement and foundation issues in the future."

Dowell H on July 2022

Basement Remedy is a small, Veteran owned & operated company specializing in Historic and Contemporary Foundation Repair, Drainage, Masonry, and more. We pride ourselves in the highest quality work, backed by warranty. We are a non-sponsored company and do not install "systems." Our methods and materials have been proven over time.

"Fantastic experience with Todd and basement remedy. Incredibly responsive (he came out and took a look same day). Knew immediately what the issue was with out stone foundation, and offered solutions that we could get done asap and fit our budget. Very happy and HIGHLY RECOMMEND for stone foundation work. We'll he bringing them back for other basement and foundation issues in the future."

Dowell H on July 2022


The Basement Doctor

7369 E Livingston Ave
4.75(
344
)

The Basement Doctor

7369 E Livingston Ave
4.75(
344
)
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Since 1987 The Basement Doctor has been providing expert wet basement waterproofing, foundation repair, crawl space vapor barrier, basement finishing, and mold and spray foam insulation services. We give free inspections and detailed written estimates to homeowners in the Columbus and central Ohio area. Our solutions have expanded to include back-up standby electrical generators. Selecting the right contractor to let into your home is a very important decision. The Basement Doctor respects you and your home – expertly performing the contracted work, being punctual, employing a drug free workforce, and skilled experienced installers. We only use ethical sales practices and honor warranties without hassle. All of our staff follows clear rules of respect, responsibility and integrity. We treat you the way we'd want our own families treated. Financing is available, lender qualifications apply. Additional services: mold clean-up & prevention, basement finishing, dehumidification & battery back-up sump pumps and emergency response to flooded basements.

"Jacob is the best in the business. It’s very comforting to know I have a reliable contact for whenever I’m having any basement/water issues or any questions. He also has a lot of references for other projects. 10/10 recommend. Thanks again Jacob!"

Cole W on April 2025

Since 1987 The Basement Doctor has been providing expert wet basement waterproofing, foundation repair, crawl space vapor barrier, basement finishing, and mold and spray foam insulation services. We give free inspections and detailed written estimates to homeowners in the Columbus and central Ohio area. Our solutions have expanded to include back-up standby electrical generators. Selecting the right contractor to let into your home is a very important decision. The Basement Doctor respects you and your home – expertly performing the contracted work, being punctual, employing a drug free workforce, and skilled experienced installers. We only use ethical sales practices and honor warranties without hassle. All of our staff follows clear rules of respect, responsibility and integrity. We treat you the way we'd want our own families treated. Financing is available, lender qualifications apply. Additional services: mold clean-up & prevention, basement finishing, dehumidification & battery back-up sump pumps and emergency response to flooded basements.

"Jacob is the best in the business. It’s very comforting to know I have a reliable contact for whenever I’m having any basement/water issues or any questions. He also has a lot of references for other projects. 10/10 recommend. Thanks again Jacob!"

Cole W on April 2025


Global Plasma Solutions

10 Mall Terrace
5.00(
1
)

Global Plasma Solutions

10 Mall Terrace
5.00(
1
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.


Flinn Home Inspection Group

95 Liberty Ridge Ave
4.81(
37
)

Flinn Home Inspection Group

95 Liberty Ridge Ave
4.81(
37
)
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers

We educate our clients during the home inspection, so whether you are a buyer, seller, or a current homeowner you will receive an unbiased opinion regarding the condition of the property. Our inspectors have completed some of the industry’s most comprehensive training programs. In addition to our State License, we take pride in the fact that we have achieved the certification designations that set us apart from many of our competitors.

We educate our clients during the home inspection, so whether you are a buyer, seller, or a current homeowner you will receive an unbiased opinion regarding the condition of the property. Our inspectors have completed some of the industry’s most comprehensive training programs. In addition to our State License, we take pride in the fact that we have achieved the certification designations that set us apart from many of our competitors.


Paul Davis Emergency Services

755 US Rte 23 North
5.00(
3
)

Paul Davis Emergency Services

755 US Rte 23 North
5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Paul Davis Emergency Services of Delaware County is part of the Paul Davis network that has been an innovative leader in the areas of structural drying, mold remediation, smoke and fire damage clean-up, water damage clean up, board-up services, contents cleaning and specialized mitigation services. We work across the US serving our residential, institutional and commercial customers and clients. We have built our heritage one project at a time establishing a reputation for performance, integrity and responsibility

Paul Davis Emergency Services of Delaware County is part of the Paul Davis network that has been an innovative leader in the areas of structural drying, mold remediation, smoke and fire damage clean-up, water damage clean up, board-up services, contents cleaning and specialized mitigation services. We work across the US serving our residential, institutional and commercial customers and clients. We have built our heritage one project at a time establishing a reputation for performance, integrity and responsibility


Aadvanced Aair

7652 Sawmill Rd
4.56(
72
)

Aadvanced Aair

7652 Sawmill Rd
4.56(
72
)
Customers say: Quality work
37 years of experience

Radon is a cancer-causing natural radioactive gas that you can’t see, smell or taste. Its presence in your home can pose a danger to your family's health. Radon is the leading cause of lung cancer among non-smokers and the second leading cause of lung cancer in America, claiming about 20,000 lives annually. 5 employees. Uses subs for electrical. Cost is determined by the job. No travel charges. Additional DBA - Oak Hill Enterprises Inc & Aadvanced Aair Radon. Addional Area Served- Union County

"We were very pleased with the radon mitigation service provided by advanced air. Setting up the initial appointment was easy and fast. The front office folks gave us very precise and clear information about the steps involved in the process. The technician showed up to our place at the correct time. He was very polite and friendly. After a first inspection he told us, in direct, clear language what he was planning to do, the potential pitfalls. and ways around it. He finished the job quickly with minimum disruption of our activities and before leaving explained very well what the next steps would be. There were no surprise costs and they only charged us after a test demonstrated radon levels were below the maximum accepted value. Great service!"

Alvaro M on June 2019

Radon is a cancer-causing natural radioactive gas that you can’t see, smell or taste. Its presence in your home can pose a danger to your family's health. Radon is the leading cause of lung cancer among non-smokers and the second leading cause of lung cancer in America, claiming about 20,000 lives annually. 5 employees. Uses subs for electrical. Cost is determined by the job. No travel charges. Additional DBA - Oak Hill Enterprises Inc & Aadvanced Aair Radon. Addional Area Served- Union County

"We were very pleased with the radon mitigation service provided by advanced air. Setting up the initial appointment was easy and fast. The front office folks gave us very precise and clear information about the steps involved in the process. The technician showed up to our place at the correct time. He was very polite and friendly. After a first inspection he told us, in direct, clear language what he was planning to do, the potential pitfalls. and ways around it. He finished the job quickly with minimum disruption of our activities and before leaving explained very well what the next steps would be. There were no surprise costs and they only charged us after a test demonstrated radon levels were below the maximum accepted value. Great service!"

Alvaro M on June 2019

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FAQs for radon gas testing projects in Marion, OH

Radon is the second leading cause of lung cancer in the U.S. The gas seeps through cracks in foundations and collects in basements and other low areas. Once you breathe it in, radioactive particles lodge in lung tissue and do long-term damage. Because you can’t see or smell radon, the EPA recommends testing your home every two years—and after major renovations—to keep your family safe.

Yes—every home should be tested. The EPA advises doing it at least every two years and any time you remodel, buy, or sell. On average, one in 15 houses nationwide sits above the recommended limit, and the only way to know where yours stands is a formal test. The equipment simply measures gas levels and won’t change your indoor environment, so the process is completely harmless.

Certified radon professionals—often home inspectors or dedicated radon mitigation contractors—handle testing. These radon testing professionals follow EPA protocols and use calibrated instruments to check levels throughout your house. Hiring a certified radon specialist means results you can trust for real estate deals, insurance requirements, and, most importantly, your family’s health.

Inspectors specialize in measuring radon gas levels, while licensed mitigation contractors design and install the systems that remove it. If your test comes back high, your inspector can point you to a qualified mitigation pro who will size and install the right fan, piping, or other equipment to bring levels down.

No—standard home air purifiers don’t touch radon. They’re built to trap dust and pollen, not radioactive gas. If testing shows high levels, you’ll need a dedicated mitigation system that vents the gas from beneath your home to the outdoors. Relying on a room purifier alone won’t keep your indoor air safe.

Opening a few windows in your home might dilute radon for a short time, but the gas seeps back in as soon as they’re closed. For a lasting fix, you’ll need a professional mitigation system—often a sub-slab depressurization fan—that pulls radon from beneath the foundation and safely vents it outside.

The Marion, OH homeowners’ guide to radon gas testings

From average costs to expert advice, get all the answers you need to get your job done.