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Radon gas testers in Thornville

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
1822 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 RestoPros of Greater Columbus
RestoPros of Greater Columbus
4739 GALE RD
5.00(
6
)
Approved Pro
RestoPros of Greater Columbus
4739 GALE RD
5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
138 local quotes requested

At RestoPros of Greater Columbus, we specialize in comprehensive disaster restoration services. Our team is dedicated to safeguarding homes and businesses from the damaging effects of water, fires, mold and storms. Here’s what sets us apart: Choose RestoPros of Greater Columbus for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.

"Excellent - extremely helpful"

Jeffrey L on April 2025

At RestoPros of Greater Columbus, we specialize in comprehensive disaster restoration services. Our team is dedicated to safeguarding homes and businesses from the damaging effects of water, fires, mold and storms. Here’s what sets us apart: Choose RestoPros of Greater Columbus for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.

"Excellent - extremely helpful"

Jeffrey L on April 2025


Basement Remedy
6269 Lithopolis Rd
5.00(
55
)
Basement Remedy
6269 Lithopolis Rd
5.00(
55
)
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


Moldlab
2501 Mayes Road
4.66(
402
)
Moldlab
2501 Mayes Road
4.66(
402
)
Customers say: True professional
25 years of experience

Mold identification, mold test kits and testing supplies. If you suspect you have a mold problem give us a call toll free and we can walk you through your testing options.

"The self-test product was as expected. The reports require additional research to interpret and understand, so seemed more targeted at professionals."

Jessica H on February 2018

Mold identification, mold test kits and testing supplies. If you suspect you have a mold problem give us a call toll free and we can walk you through your testing options.

"The self-test product was as expected. The reports require additional research to interpret and understand, so seemed more targeted at professionals."

Jessica H on February 2018


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.


Lepi Enterprises, Inc.
630 G.W. Morse Street
5.00(
1
)
Lepi Enterprises, Inc.
630 G.W. Morse Street
5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a full service environmental contractor providing asbestos, lead, and mold remediation services

We are a full service environmental contractor providing asbestos, lead, and mold remediation services


Housemaster Home Inspection
1734 Forest Hills Circle
4.22(
9
)
Housemaster Home Inspection
1734 Forest Hills Circle
4.22(
9
)
Customers say: Terrific value
24 years of experience

PG&3 Inc. dba HouseMaster Home Inspections is owned by franchisee Gary Moore. We have served all of Central Ohio since 2001. Each of our inspectors is NIBI Certified (tested and recertified annually), are licensed Wood Destroying Insects Inspections, and licensed in Radon Testing. Only HouseMaster offers a Free Written Limited Inspection Guarantee, a Computer Generated Report no later than 24 hours after the inspection, HouseMaster Home Inspection Resource Guide, Free Concierge Service to assist with utility set-ups, and a Free Buyer Benefits Program to save you money during your move . Please call our office at 740-588-9023 with any questions or to schedule your home inspection. We also encourage you to visit our website https://housemaster.com/centralohio to watch videos of our inspections, to read our customer feedback, and to read helpful advice for buyers, sellers, and realtors. HouseMaster. Home Inspections. Done Right. Guaranteed.

PG&3 Inc. dba HouseMaster Home Inspections is owned by franchisee Gary Moore. We have served all of Central Ohio since 2001. Each of our inspectors is NIBI Certified (tested and recertified annually), are licensed Wood Destroying Insects Inspections, and licensed in Radon Testing. Only HouseMaster offers a Free Written Limited Inspection Guarantee, a Computer Generated Report no later than 24 hours after the inspection, HouseMaster Home Inspection Resource Guide, Free Concierge Service to assist with utility set-ups, and a Free Buyer Benefits Program to save you money during your move . Please call our office at 740-588-9023 with any questions or to schedule your home inspection. We also encourage you to visit our website https://housemaster.com/centralohio to watch videos of our inspections, to read our customer feedback, and to read helpful advice for buyers, sellers, and realtors. HouseMaster. Home Inspections. Done Right. Guaranteed.


Snell Service
Unknown
1.00(
1
)
Snell Service
Unknown
1.00(
1
)
Customers say: Quick response
49 years of experience

Service oriented private business serving a wide aray of customers on many tasks/projects; personal or private services, construction services, business services, financial services etc

"Horrible craftsmanship. He did not order the materials as draws were paid, then wanted more money to order materials. Installed a boat lift as part of the project, it was not installed to spec and dropped our boat. The seawall steps have washed out from rain. Left trash, building scraps all over the work site."

Abby G on April 2018

Service oriented private business serving a wide aray of customers on many tasks/projects; personal or private services, construction services, business services, financial services etc

"Horrible craftsmanship. He did not order the materials as draws were paid, then wanted more money to order materials. Installed a boat lift as part of the project, it was not installed to spec and dropped our boat. The seawall steps have washed out from rain. Left trash, building scraps all over the work site."

Abby G on April 2018


HEPA ENVIRONMENTAL SERVICES INC
5130 Tallmadge Rd
5.00(
1
)
HEPA ENVIRONMENTAL SERVICES INC
5130 Tallmadge Rd
5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

HEPA Environmental Services, Inc. has been privately owned and operated for 13 years. We pride ourselves on making commitments and keeping them. We have also helped many of our residential clients get reimbursement for Vermiculite removal from the Zonolite Trust.

HEPA Environmental Services, Inc. has been privately owned and operated for 13 years. We pride ourselves on making commitments and keeping them. We have also helped many of our residential clients get reimbursement for Vermiculite removal from the Zonolite Trust.


Hardbarger Inspections LLC
12482 Lonesome Rd
No reviews
Hardbarger Inspections LLC
12482 Lonesome Rd
No reviews
Free onsite estimate

Home inspections

Home inspections

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FAQs for radon gas testing projects in Thornville, 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 Thornville, OH homeowners’ guide to radon gas testings
From average costs to expert advice, get all the answers you need to get your job done.
sump pump radon gas removal system in basement of home
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Radon mitigation systems help protect your home from harmful gas buildup by reducing indoor radon levels. Learn about costs, types, and hiring a professional.
radon gas testing equipment
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Jun 24, 2025
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Budget for mold remediation costs based on factors such as severity, location in the home, type of mold, damage type, and more.
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Apr 26, 2025
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Asbestos testing costs depend on the size of your home, its condition, and your location. This test ensures your home is safe from this hazardous material.
professional in protective suit removing asbestos from attic of home
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professional testing for toxic lead in home
Apr 26, 2025
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Budget for lead paint inspection costs based on factors such as home size, location, home condition, repairs and removal, additional tests, and more.
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