Top-rated radon gas testers.

Get matched with top radon gas testers in Sheldon, ND

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Radon gas testers in Sheldon

Avatar for River Cities Radon

River Cities Radon

3500 Riverview Circle
5.00(
6
)
•Approved Pro

River Cities Radon

3500 Riverview Circle
5.00(
6
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

River Cities Radon is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 14 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Very friendly did a.great job"

ALAN S on May 2024

River Cities Radon is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 14 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Very friendly did a.great job"

ALAN S on May 2024

Avatar for American Waterworks

American Waterworks

1307 Valleyhigh Dr NW
4.78(
132
)
•Approved Pro

American Waterworks

1307 Valleyhigh Dr NW
4.78(
132
)
•Approved Pro
Super Service Award
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
570 local quotes requested

When it comes to water in your basement or a faulty foundation, you need an expert to ensure the damage is reversed and prevented from occurring in the future. American Waterworks has several decades of experience in the basement waterproofing and foundation repair industries, and we know the best tools and techniques to see your home through its troubles. Our professional installers are experienced in solving the wide variety of problems that allow water into basements and other areas below ground level. We've helped property owners with thousands of repairs and other restorations to homes in Minnesota, North Dakota, northeastern Iowa and western Wisconsin. American Waterworks is ready to serve all of your basement, crawl space, foundation, concrete leveling and radon mitigation needs. Call us today for a free estimate!

"This job was completed efficiently and professionally. A design specialist came to test and measure every detail for the project. The crew arrived with everything needed for the job. They worked very hard to install Waterguard in the concrete floors inside around the foundation to the sump pump basket. They also installed Geo-lock anchors to support a block wall that was bowed. This company has 36 years in business and provides excellent results and professional customer relations. Call Amer. Wtrwrks for a free estimate. You will not be disappointed. A wise investment of $11,270."

Donna A on September 2025

When it comes to water in your basement or a faulty foundation, you need an expert to ensure the damage is reversed and prevented from occurring in the future. American Waterworks has several decades of experience in the basement waterproofing and foundation repair industries, and we know the best tools and techniques to see your home through its troubles. Our professional installers are experienced in solving the wide variety of problems that allow water into basements and other areas below ground level. We've helped property owners with thousands of repairs and other restorations to homes in Minnesota, North Dakota, northeastern Iowa and western Wisconsin. American Waterworks is ready to serve all of your basement, crawl space, foundation, concrete leveling and radon mitigation needs. Call us today for a free estimate!

"This job was completed efficiently and professionally. A design specialist came to test and measure every detail for the project. The crew arrived with everything needed for the job. They worked very hard to install Waterguard in the concrete floors inside around the foundation to the sump pump basket. They also installed Geo-lock anchors to support a block wall that was bowed. This company has 36 years in business and provides excellent results and professional customer relations. Call Amer. Wtrwrks for a free estimate. You will not be disappointed. A wise investment of $11,270."

Donna A on September 2025

Frac Decon Services LLC

1721 Park Ave Suite
No reviews yet

Frac Decon Services LLC

1721 Park Ave Suite
No reviews yet
14 years of experience

Frac Decon Services is a full services Environmental Services Business. We accept cash, check, and major credit cards.

Frac Decon Services is a full services Environmental Services Business. We accept cash, check, and major credit cards.

Avatar for Environmental Air Solutions, Inc.

Environmental Air Solutions, Inc.

PO Box 9074
4.00(
4
)

Environmental Air Solutions, Inc.

PO Box 9074
4.00(
4
)
Customers say: Quick response
17 years of experience

We offer a wide range of dependable services, such as air testing and mold control. With experienced and professional air quality consultants, you can count on us to make the air you breathe healthier and safer.

We offer a wide range of dependable services, such as air testing and mold control. With experienced and professional air quality consultants, you can count on us to make the air you breathe healthier and safer.

Moldlab

2501 Mayes Road
4.74(
352
)

Moldlab

2501 Mayes Road
4.74(
352
)
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.

PuroClean Disaster First Response

5851 Ramsey Street, Suite C
4.00(
4
)

PuroClean Disaster First Response

5851 Ramsey Street, Suite C
4.00(
4
)
Customers say: Quick response
25 years of experience

Local Expert Water, Fire, Smoke and Mold Restoration in Fayetteville, North Carolina. Call for fast, local 24x7 response.

"Avoid these people!!!!!! They are the worst. They tell you lie after lie and take forever to do the work. My insurance company called them in even though it was not in my best interest. I regret the day I let them in my front door, and I regret the day I let Allstate insure my house."

Margaret M on November 2018

Local Expert Water, Fire, Smoke and Mold Restoration in Fayetteville, North Carolina. Call for fast, local 24x7 response.

"Avoid these people!!!!!! They are the worst. They tell you lie after lie and take forever to do the work. My insurance company called them in even though it was not in my best interest. I regret the day I let them in my front door, and I regret the day I let Allstate insure my house."

Margaret M on November 2018

Avatar for DJ's Home Inspection Inc

DJ's Home Inspection Inc

3523 45th St S
5.00(
4
)

DJ's Home Inspection Inc

3523 45th St S
5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

DJ's Home Inspection offers home inspection and radon testing services to Fargo, North Dakota (ND) and the surrounding areas. Please call/text/email for pricing and scheduling information. Thank you!

DJ's Home Inspection offers home inspection and radon testing services to Fargo, North Dakota (ND) and the surrounding areas. Please call/text/email for pricing and scheduling information. Thank you!

Horizon Inspections

3007 17th Ave S
No reviews yet

Horizon Inspections

3007 17th Ave S
No reviews yet
6 years of experience

With 30+ yrs experience in almost every aspect of construction, Chris brings his invaluable experience to every inspection. ASHI Certified since 2014. Services include Home Inspections for Sellers, Buyers, 1-Year Warranties, and Radon Testing. Serving you within an 80-mile radius of Fargo-Moorhead. Horizon Inspections: your future is our focus!

With 30+ yrs experience in almost every aspect of construction, Chris brings his invaluable experience to every inspection. ASHI Certified since 2014. Services include Home Inspections for Sellers, Buyers, 1-Year Warranties, and Radon Testing. Serving you within an 80-mile radius of Fargo-Moorhead. Horizon Inspections: your future is our focus!

L.P. Local Remodeling & Home Repair

1507 4th Ave. NE
5.00(
3
)

L.P. Local Remodeling & Home Repair

1507 4th Ave. NE
5.00(
3
)
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

2 to 6 employee's cash or check payments pay is half up front and half at job completion or half up front and then a 30 day net credit term agreement when job is completed

2 to 6 employee's cash or check payments pay is half up front and half at job completion or half up front and then a 30 day net credit term agreement when job is completed

Showing 1-10 of 14
FAQs for radon gas testing projects in Sheldon, ND

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 Sheldon, ND homeowners’ guide to radon gas testings

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

See all articles