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Radon gas testers in Johnson City

Avatar for Tri Cities Home Inspections
Tri Cities Home Inspections
112 Winners Circle C
4.98(
91
)
Approved Pro
Tri Cities Home Inspections
112 Winners Circle C
4.98(
91
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
14 local quotes requested

At Tri Cities Home Inspections, our sole commitment is to you-our valued customer. Our unbiased and fair report will contain the most comprehensive evaluation possible. We look forward to showing you exactly what caliber of dedication and commitment we have. I pride myself in making sure that you are well informed about the purchase you are making as to the structural soundness of the home all the way down to a light switch not working properly. I inspect every home with fine detail. I leave no stone un-turned. I work for you, the Homeowner, not a realtor. Because you are the buyer and its your hard earned money that will go to purchase the home that you and your family should be safe and happy in for as long as the home fits your needs. Buying a home is probably the the most expensive purchase you will ever make. Don’t trust your family's safety and investment to just anyone.

"My son said it the very best in his review: Ken is a true professional: extremely knowledgeable, competent, thorough, personable, loves his job and, most important, he is looking out for you and your interests. Not only is his final report and photo documentation comprehensive and timely, but his generosity of time and any advice is invaluable. You couldn't ask to be more informed about the property you own or are planning to purchase. Call on Ken with complete confidence!"

Torre R on January 2025

At Tri Cities Home Inspections, our sole commitment is to you-our valued customer. Our unbiased and fair report will contain the most comprehensive evaluation possible. We look forward to showing you exactly what caliber of dedication and commitment we have. I pride myself in making sure that you are well informed about the purchase you are making as to the structural soundness of the home all the way down to a light switch not working properly. I inspect every home with fine detail. I leave no stone un-turned. I work for you, the Homeowner, not a realtor. Because you are the buyer and its your hard earned money that will go to purchase the home that you and your family should be safe and happy in for as long as the home fits your needs. Buying a home is probably the the most expensive purchase you will ever make. Don’t trust your family's safety and investment to just anyone.

"My son said it the very best in his review: Ken is a true professional: extremely knowledgeable, competent, thorough, personable, loves his job and, most important, he is looking out for you and your interests. Not only is his final report and photo documentation comprehensive and timely, but his generosity of time and any advice is invaluable. You couldn't ask to be more informed about the property you own or are planning to purchase. Call on Ken with complete confidence!"

Torre R on January 2025


Avatar for Elevation Inspection
Elevation Inspection
229 Burbank Rd
5.00(
1
)
Approved Pro
Elevation Inspection
229 Burbank Rd
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 years of experience

Elevation Inspection is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have several 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!

"Dean did an excellent job on our home inspection! I felt very confident in his abilities. He was very knowledgeable, punctual, and his responsiveness was top notch! Would definitely use him again."

Courtney M on August 2021

Elevation Inspection is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have several 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!

"Dean did an excellent job on our home inspection! I felt very confident in his abilities. He was very knowledgeable, punctual, and his responsiveness was top notch! Would definitely use him again."

Courtney M on August 2021


Avatar for A to Z Inspection Services
A to Z Inspection Services
2077 Knob Rd
5.00(
3
)
Approved Pro
A to Z Inspection Services
2077 Knob Rd
5.00(
3
)
Approved Pro
1 years of experience
Free onsite estimate

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We have many years of experience to give you confidence that we are your number one choice for your home. You will find us to be competitively priced with close attention to the details. We look forward to building a lasting relationship and guarantee your satisfaction!

"Chad Verville and Damon Nolte are my go-to home inspectors. They provide excellent customer service before and after the inspection and are always patient with explaining results to my clients. Highly recommend!"

Patti B on February 2025

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We have many years of experience to give you confidence that we are your number one choice for your home. You will find us to be competitively priced with close attention to the details. We look forward to building a lasting relationship and guarantee your satisfaction!

"Chad Verville and Damon Nolte are my go-to home inspectors. They provide excellent customer service before and after the inspection and are always patient with explaining results to my clients. Highly recommend!"

Patti B on February 2025


Avatar for Master Services
Master Services
6226 Clinton Hwy
4.56(
190
)
Approved Pro
Master Services
6226 Clinton Hwy
4.56(
190
)
Approved Pro
Customers say: Super punctual
389 local quotes requested
Free onsite estimate

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


Whiteley Property Preservation
209 Horseshoe Bend Rd
No reviews
Whiteley Property Preservation
209 Horseshoe Bend Rd
No reviews
26 years of experience

Family Owned/Operated. 13+ Years in East Tenn. We are very knowledgeable and own a large variety of equipment to accomplish many jobs.

Family Owned/Operated. 13+ Years in East Tenn. We are very knowledgeable and own a large variety of equipment to accomplish many jobs.


Ameri-Dry Waterproofing
709 Sulphur Springs Loop
4.41(
27
)
Ameri-Dry Waterproofing
709 Sulphur Springs Loop
4.41(
27
)
Customers say: Super punctual
35 years of experience

Are you looking for a basement waterproofing company with the best techniques for wet basement repair? Ameri-Dry ® is locally operated but nationally owned. This means we can provide you with the dedicated level of support of a local basement waterproofing company, but our work is backed by a strong national name and a Full Life-of-the-Structure Warranty. Whether you need wet basement repair or foundation repair, waterproofing problems don't just go away. In fact, over time, they could worsen, damaging the structure of your home and costing you much more money in the long run!

Are you looking for a basement waterproofing company with the best techniques for wet basement repair? Ameri-Dry ® is locally operated but nationally owned. This means we can provide you with the dedicated level of support of a local basement waterproofing company, but our work is backed by a strong national name and a Full Life-of-the-Structure Warranty. Whether you need wet basement repair or foundation repair, waterproofing problems don't just go away. In fact, over time, they could worsen, damaging the structure of your home and costing you much more money in the long run!


AdvantaClean of Southwest Virginia
2460 N 4th St
4.77(
13
)
AdvantaClean of Southwest Virginia
2460 N 4th St
4.77(
13
)
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

AdvantaClean is a light environmental services company specializing in Indoor Air Quality issues such as HVAC air duct cleaning and mold testing/remediation..

AdvantaClean is a light environmental services company specializing in Indoor Air Quality issues such as HVAC air duct cleaning and mold testing/remediation..


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.


Egan construction
345 Water Street
4.00(
1
)
Egan construction
345 Water Street
4.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a remodeling and new home building construction with approximately 25 employees.

We are a remodeling and new home building construction with approximately 25 employees.

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FAQs for radon gas testing projects in Johnson City, TN

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 Johnson City, TN homeowners’ guide to radon gas testings
From average costs to expert advice, get all the answers you need to get your job done.
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