Top-rated radon gas testers.

Get matched with top radon gas testers in Hillsborough, NC

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 Hillsborough

Avatar for Stay Gone Radon LLC

Stay Gone Radon LLC

5.00(
8
)
•Approved Pro

Stay Gone Radon LLC

5.00(
8
)
•Approved Pro
Free onsite estimate
Emergency services offered

Stay Gone Radon LLC is dedicated to providing our customers with professional, prompt service. We do radon testing, Sub-slab depressurization systems, crawlspace encapsulations and existing system diagnostics. We handle systems for real estate transactions promptly!

"Reached out to Stay Gone Radon for an install. Charlie arrived on time and finished that afternoon. Easy to work with these guys! I highly recommend giving them a call"

Chris W on October 2025

Stay Gone Radon LLC is dedicated to providing our customers with professional, prompt service. We do radon testing, Sub-slab depressurization systems, crawlspace encapsulations and existing system diagnostics. We handle systems for real estate transactions promptly!

"Reached out to Stay Gone Radon for an install. Charlie arrived on time and finished that afternoon. Easy to work with these guys! I highly recommend giving them a call"

Chris W on October 2025

Avatar for Stratton Radon Removal LLC

Stratton Radon Removal LLC

5.00(
6
)
•Approved Pro

Stratton Radon Removal LLC

5.00(
6
)
•Approved Pro
25 local quotes requested
2 years of experience

National Radon Proficiency Program (NRPP) certified!!!! We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Dependable, quality work, superior service. Stergios and his team are top notch. They will provide an estimate, walk you through the process and be there to answer your questions before, during and after. Highly recommended! "

Angie T on May 2025

National Radon Proficiency Program (NRPP) certified!!!! We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Dependable, quality work, superior service. Stergios and his team are top notch. They will provide an estimate, walk you through the process and be there to answer your questions before, during and after. Highly recommended! "

Angie T on May 2025

Avatar for Master Services

Master Services

4.76(
152
)
•Approved Pro

Master Services

4.76(
152
)
•Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
182 local quotes requested

Master Services is your local, certified basement, crawl space, and foundation repair specialists. They specialize in professional services that improve the health and functionality of your below-grade space: Basement Waterproofing Crawl Space Repair Sump Pumps Foundation Repair Concrete Lifting and Leveling Humidity and Mold Control We will make your basement, crawl space, and foundation safe and usable. With free, no obligation estimates, patented products, and lifetime warranties you can rest assured we have the best solution available on the market to fix your problems permanently.

"5 fails in one job, didn't even listen on what the problem was. Then raised the wrong floor, probably damaged the house. [*** Link removed ***]"

Shane B on August 2024

Master Services is your local, certified basement, crawl space, and foundation repair specialists. They specialize in professional services that improve the health and functionality of your below-grade space: Basement Waterproofing Crawl Space Repair Sump Pumps Foundation Repair Concrete Lifting and Leveling Humidity and Mold Control We will make your basement, crawl space, and foundation safe and usable. With free, no obligation estimates, patented products, and lifetime warranties you can rest assured we have the best solution available on the market to fix your problems permanently.

"5 fails in one job, didn't even listen on what the problem was. Then raised the wrong floor, probably damaged the house. [*** Link removed ***]"

Shane B on August 2024

Avatar for Tri State Flood Inc

Tri State Flood Inc

3.50(
2
)
•Approved Pro

Tri State Flood Inc

3.50(
2
)
•Approved Pro
40 local quotes requested
21 years of experience

At Tri State Flood Inc, 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: Water Removal and Storm Damage Restoration: When water wreaks havoc due to storms or other incidents, we’re here to help. Our 24/7 emergency response team swiftly tackles water extraction, drying, and structural repairs. Comprehensive Services: Beyond mold and water remediation, we handle storm damage repairs, basement flood cleanup and fire restoration. Choose Tri State Flood Inc for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.

"Lesson learned. Always get an estimate. BEFORE the work is done. At least a digital copy. Arrangements for the project were made, with some one named Lynn, for the company to send someone to complete the work. We were quoted over the phone 4500-5000 which included a mold test. A sub contractor with an entirely different company (National Mold Company) was sent. When the contractor arrived, he stated that the job would be much more simpler than first thought. This led us to believe that the job would cost less, no. All said and done, they charged $5500. All said and done, it's almost like no work was done. The stains and the smell are still there. Only one actual board was taken upon the attic room. The ceiling in the bedroom was primed and painted but are still visible and have a funky smell. At this point I'm going to. Do what we should have done; Do the job ourselves. Just now with $5500 less dollars in our pockets. A detailed receipt was not given even though it was requested."

David B on August 2025

At Tri State Flood Inc, 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: Water Removal and Storm Damage Restoration: When water wreaks havoc due to storms or other incidents, we’re here to help. Our 24/7 emergency response team swiftly tackles water extraction, drying, and structural repairs. Comprehensive Services: Beyond mold and water remediation, we handle storm damage repairs, basement flood cleanup and fire restoration. Choose Tri State Flood Inc for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.

"Lesson learned. Always get an estimate. BEFORE the work is done. At least a digital copy. Arrangements for the project were made, with some one named Lynn, for the company to send someone to complete the work. We were quoted over the phone 4500-5000 which included a mold test. A sub contractor with an entirely different company (National Mold Company) was sent. When the contractor arrived, he stated that the job would be much more simpler than first thought. This led us to believe that the job would cost less, no. All said and done, they charged $5500. All said and done, it's almost like no work was done. The stains and the smell are still there. Only one actual board was taken upon the attic room. The ceiling in the bedroom was primed and painted but are still visible and have a funky smell. At this point I'm going to. Do what we should have done; Do the job ourselves. Just now with $5500 less dollars in our pockets. A detailed receipt was not given even though it was requested."

David B on August 2025

Avatar for Certified Indoor Air Inc

Certified Indoor Air Inc

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

Certified Indoor Air Inc

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
77 local quotes requested
12 years of experience

Everyone deserves fresh, healthy air to breathe. Certified Indoor Air, Inc. in Raleigh, NC, makes sure everyone gets pure air by testing for mold and other contaminates in the home. Serving the Raleigh-Durham metro area, these air quality consultants work with residential and commercial clients to test for mold and other contaminants that might be affecting the quality of your air. Make sure everyone who enters your property will be breathing easily by enlisting the help of these experts today. If you’ve been coughing or sneezing more than usual or all-around just feeling generally unwell, there’s a chance it might be due to the indoor air quality.

Everyone deserves fresh, healthy air to breathe. Certified Indoor Air, Inc. in Raleigh, NC, makes sure everyone gets pure air by testing for mold and other contaminates in the home. Serving the Raleigh-Durham metro area, these air quality consultants work with residential and commercial clients to test for mold and other contaminants that might be affecting the quality of your air. Make sure everyone who enters your property will be breathing easily by enlisting the help of these experts today. If you’ve been coughing or sneezing more than usual or all-around just feeling generally unwell, there’s a chance it might be due to the indoor air quality.

Avatar for Coastal Inspection Company

Coastal Inspection Company

5.00(
5
)
•Approved Pro

Coastal Inspection Company

5.00(
5
)
•Approved Pro
1 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Ben at Coastal Inspection Company did an amazing job. He found issues, took lots of photos, and kept us informed throughout the whole process, since we couldn’t be there in person. We’re so glad we chose him to do our home inspection. Would definitely recommend him! 5+ stars!"

Ann I on November 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Ben at Coastal Inspection Company did an amazing job. He found issues, took lots of photos, and kept us informed throughout the whole process, since we couldn’t be there in person. We’re so glad we chose him to do our home inspection. Would definitely recommend him! 5+ stars!"

Ann I on November 2025

J&L Home Improvement and Mitigation Services

4.53(
17
)
•Approved Pro

J&L Home Improvement and Mitigation Services

4.53(
17
)
•Approved Pro
Customers say: Quick response
57 local quotes requested
19 years of experience

We are a veteran owned company, that specializes in water mitigation services, with industry experience dating back to 2005. Our mitigation services include the installation of vapor barriers, along with the insulation. We also can help with all of your mold remediation services. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all of the services we offer below and call -- or-- click to schedule a free estimate today! - I provide my customer service quality for all the services my business provide. - I have been in this line of work for over 15 years. I'm a veteran own business. -

"J&L made the problem an easy fix!"

Jennifer B on October 2024

We are a veteran owned company, that specializes in water mitigation services, with industry experience dating back to 2005. Our mitigation services include the installation of vapor barriers, along with the insulation. We also can help with all of your mold remediation services. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all of the services we offer below and call -- or-- click to schedule a free estimate today! - I provide my customer service quality for all the services my business provide. - I have been in this line of work for over 15 years. I'm a veteran own business. -

"J&L made the problem an easy fix!"

Jennifer B on October 2024

Avatar for Remediation & Consulting Services

Remediation & Consulting Services

4.83(
12
)

Remediation & Consulting Services

4.83(
12
)
Customers say: Quick response
19 years of experience

RCS is a full service remediation firm. We also provide insulation, vapor barriers, and sealed crawlspaces. Additional email - info@rcsmold.com.

RCS is a full service remediation firm. We also provide insulation, vapor barriers, and sealed crawlspaces. Additional email - info@rcsmold.com.

Global Plasma Solutions

5.00(
1
)

Global Plasma Solutions

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.

CTI PROPERTY SVC INC

4.63(
16
)

CTI PROPERTY SVC INC

4.63(
16
)
Customers say: True professional
31 years of experience

Local licensed contractor, in business 17 years.

Local licensed contractor, in business 17 years.

...
Showing 1-10 of 185
FAQs for radon gas testing projects in Hillsborough, NC

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 Hillsborough, NC 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