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Find Radon gas testers in Flagstaff

121 PRO, LLC

1718 North Fort Valley Road Suite 121
5.00(
1
)
Approved Pro

121 PRO, LLC

1718 North Fort Valley Road Suite 121
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

121 PRO, is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"OK, this was a WILD ride! We finally moved in and hire a few contractors to repair the items Bill (121 PRO) highlighted on his report. Were we nervous, YES! 1st time buying a house and it is a fixer-upper. Bill was able to help us understand the complexities of each repair and was able to prioritize them for us. Bill is the defination of 'Salt of the Earth'. Also, I want to give a shout-out to our realtor David Swain. Rock Star!"

Rodger R on May 2024

121 PRO, is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"OK, this was a WILD ride! We finally moved in and hire a few contractors to repair the items Bill (121 PRO) highlighted on his report. Were we nervous, YES! 1st time buying a house and it is a fixer-upper. Bill was able to help us understand the complexities of each repair and was able to prioritize them for us. Bill is the defination of 'Salt of the Earth'. Also, I want to give a shout-out to our realtor David Swain. Rock Star!"

Rodger R on May 2024


Avatar for Affordable Radon Southwest

Affordable Radon Southwest

2942 N 24th St Ste 114
4.82(
337
)
Approved Pro

Affordable Radon Southwest

2942 N 24th St Ste 114
4.82(
337
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
14 years of experience

We are a family owned and operated company specializing in Radon Gas testing & reduction. Our services include Radon Mitigation & testing, sump pump installation & pit excavation, crawl space vapor barrier installation, & crawl space insulation services. Along with our expert team of professionals, & wide portfolio of services, we also stand behind our work with a lifetime warranty on our Radon mitigation systems, at a guaranteed level of 3.9pCi/L or below! We have worked hard serving our clients for the past decade, and we would love the opportunity to earn your business whether you're a Real Estate Agent assisting a client through closing or a homeowner concerned with the dangers of Radon Gas, give us a Call Today!

"This company has great customer service. They care about their customers, putting our needs first. Very quick to scheduling and prompt on arrival time. Very educational on the process. Great work, job well done. Would definitely recommend! "

Michelle A on June 2025

We are a family owned and operated company specializing in Radon Gas testing & reduction. Our services include Radon Mitigation & testing, sump pump installation & pit excavation, crawl space vapor barrier installation, & crawl space insulation services. Along with our expert team of professionals, & wide portfolio of services, we also stand behind our work with a lifetime warranty on our Radon mitigation systems, at a guaranteed level of 3.9pCi/L or below! We have worked hard serving our clients for the past decade, and we would love the opportunity to earn your business whether you're a Real Estate Agent assisting a client through closing or a homeowner concerned with the dangers of Radon Gas, give us a Call Today!

"This company has great customer service. They care about their customers, putting our needs first. Very quick to scheduling and prompt on arrival time. Very educational on the process. Great work, job well done. Would definitely recommend! "

Michelle A on June 2025


CM Construction Inc

PO Box 2212
5.00(
14
)

CM Construction Inc

PO Box 2212
5.00(
14
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Independently owned & operated. Offering full construction and help during an emergency.

Independently owned & operated. Offering full construction and help during an emergency.


Moldlab

2501 Mayes Road
4.74(
302
)

Moldlab

2501 Mayes Road
4.74(
302
)
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.


SMALLJOBSNOW.COM

1840 41ST AVE
5.00(
1
)

SMALLJOBSNOW.COM

1840 41ST AVE
5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Angie's List customers are receiving 20% off any two or more projects performed.

Angie's List customers are receiving 20% off any two or more projects performed.


One Stop Restoration Services

PO Box 3660
No reviews yet

One Stop Restoration Services

PO Box 3660
No reviews yet
52 years of experience

We are Council Certified Microbial Mold Remediation Experts, certified by the ACAC and IAQ Councils. We specialize in Water Damage, Mold Inspections, and Mold Remediation as well as the complete Structure rebuild or put back of your home. During and after a Mold Remediation, we use no VOC on biocide (Volantile organic compounds) and low VOC on the sealant abatement assisted products. Whether you need a Water Dry-Out of your home due to a broken water pipe, or a Mold Inspection or a complete Structure rebuild, we have what you need at prices you can afford. Broken water pipes are the highest reason for water damage in your home. At One Stop Restoration Services, with over 40 years experience as a structural contractor that includes water damage, mold inspections, mold remediation, or fire damage, our goal is to provide you with courteous, expedient, professional service of the highest caliber. We are respected with insurance companies and can help to act on your behalf. We understand how difficult it is sustaining any water damage or fire damage to your home. We strive to help you understand the process with direct communication between our staff, your insurance adjuster, and you. Our goal is to make this as easy on you as is possible. Since 1973 our experience and commitment to excellence have earned us the reputation as the best Fire Damage, Water Damage and Mold Remediation company in the Sedona/Verde Valley area. Our Values Motto: IF WE DID IT LIKE THE REST, WE WOULD NOT BE THE BEST! Leadership: You can rest assured that we are certified on the latest technology for mold remediation and changing developments in the industry. We are tested every two years. Teamwork: We make it our responsibility to understand your needs. We work closely with you to ensure that the solutions we provide are tailored to meet your unique needs and challenges. We are committed to your approval. Customer Relations: Our highest priority is to make this transition as easy as possible. Water damages and Fire damages are never easy on anyone. You are important to us and you can expect us to go the extra mile for your home or business. Superior customer service is the hallmark of One Stop Restoration Services. We are proud to serve you . Useful links: American Council for Accredited Certification http://www.acac.org/find/location_search_2.aspx The United Stated Environmental Protection Agency EPA http://www.epa.gov/mold/index.html Contact Information: onestoprestoration4u@yahoo.com 928-284-2194 office 928-436-6917 fax

We are Council Certified Microbial Mold Remediation Experts, certified by the ACAC and IAQ Councils. We specialize in Water Damage, Mold Inspections, and Mold Remediation as well as the complete Structure rebuild or put back of your home. During and after a Mold Remediation, we use no VOC on biocide (Volantile organic compounds) and low VOC on the sealant abatement assisted products. Whether you need a Water Dry-Out of your home due to a broken water pipe, or a Mold Inspection or a complete Structure rebuild, we have what you need at prices you can afford. Broken water pipes are the highest reason for water damage in your home. At One Stop Restoration Services, with over 40 years experience as a structural contractor that includes water damage, mold inspections, mold remediation, or fire damage, our goal is to provide you with courteous, expedient, professional service of the highest caliber. We are respected with insurance companies and can help to act on your behalf. We understand how difficult it is sustaining any water damage or fire damage to your home. We strive to help you understand the process with direct communication between our staff, your insurance adjuster, and you. Our goal is to make this as easy on you as is possible. Since 1973 our experience and commitment to excellence have earned us the reputation as the best Fire Damage, Water Damage and Mold Remediation company in the Sedona/Verde Valley area. Our Values Motto: IF WE DID IT LIKE THE REST, WE WOULD NOT BE THE BEST! Leadership: You can rest assured that we are certified on the latest technology for mold remediation and changing developments in the industry. We are tested every two years. Teamwork: We make it our responsibility to understand your needs. We work closely with you to ensure that the solutions we provide are tailored to meet your unique needs and challenges. We are committed to your approval. Customer Relations: Our highest priority is to make this transition as easy as possible. Water damages and Fire damages are never easy on anyone. You are important to us and you can expect us to go the extra mile for your home or business. Superior customer service is the hallmark of One Stop Restoration Services. We are proud to serve you . Useful links: American Council for Accredited Certification http://www.acac.org/find/location_search_2.aspx The United Stated Environmental Protection Agency EPA http://www.epa.gov/mold/index.html Contact Information: onestoprestoration4u@yahoo.com 928-284-2194 office 928-436-6917 fax


CMT Technical Services

No reviews yet

CMT Technical Services

No reviews yet
47 years of experience

CMT Technical Services (since 1978) provides a full range of environmental services such as Phase I and Phase II ESA's, asbestos surveys, lead testing, and indoor air quality surveys.

CMT Technical Services (since 1978) provides a full range of environmental services such as Phase I and Phase II ESA's, asbestos surveys, lead testing, and indoor air quality surveys.


All Pro Sanitize

PO Box 7364
5.00(
1
)

All Pro Sanitize

PO Box 7364
5.00(
1
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Odor Removal for Home and Auto. Cigarette smoke smell, pet urine odor, skunk, kitchen fire, curry... Air Vent Cleaning, Deep Cleaning, Carpet Odor We treat every customer like family and are proud to guarantee our work 100% Call for a free quote anytime 602-793-4821

""On a scale 1-10 - I would give them a 10 - I would highly recommend! Andy was professional and efficient!""

Betty W on April 2020

Odor Removal for Home and Auto. Cigarette smoke smell, pet urine odor, skunk, kitchen fire, curry... Air Vent Cleaning, Deep Cleaning, Carpet Odor We treat every customer like family and are proud to guarantee our work 100% Call for a free quote anytime 602-793-4821

""On a scale 1-10 - I would give them a 10 - I would highly recommend! Andy was professional and efficient!""

Betty W on April 2020


Spots Carpet Care

2209 N Main St
4.93(
46
)

Spots Carpet Care

2209 N Main St
4.93(
46
)
Customers say: Super punctual
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Additional DBA - Denno Enterprises Inc.

"Excellent Job!"

Steve G on June 2018

Additional DBA - Denno Enterprises Inc.

"Excellent Job!"

Steve G on June 2018

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FAQs for radon gas testing projects in Flagstaff, AZ

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 Flagstaff, AZ homeowners’ guide to radon gas testings

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