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Find Radon gas testers in Montrose

Avatar for Square One Radon, LLC

Square One Radon, LLC

5.00(
40
)
Approved Pro

Square One Radon, LLC

5.00(
40
)
Approved Pro
Super Service Award
Customers say: Quick response
6 years of experience
Free onsite estimate

Square One Radon is the premier choice for radon measurement and mitigation on all projects small and large, old and new. Owner and founder, Rob Hartop, brings over 12 years of radon industry experience along with a multitude of credentials including NRPP specialty certifications for new construction, multifamily, and advanced mitigation techniques. We are licensed in the State of Colorado, and are fully insured, certified, and bonded. We can mitigate any home or building, and will give you a free quote right away. Ask about our industry-leading guarantee!

"The Square One Radon team was fantastic. I had been putting this off for a while, but am so happy to have it done. Peace of mind. The team was very professional, friendly, and easy to work with. Highly recommend!"

Matthew U on November 2025

Square One Radon is the premier choice for radon measurement and mitigation on all projects small and large, old and new. Owner and founder, Rob Hartop, brings over 12 years of radon industry experience along with a multitude of credentials including NRPP specialty certifications for new construction, multifamily, and advanced mitigation techniques. We are licensed in the State of Colorado, and are fully insured, certified, and bonded. We can mitigate any home or building, and will give you a free quote right away. Ask about our industry-leading guarantee!

"The Square One Radon team was fantastic. I had been putting this off for a while, but am so happy to have it done. Peace of mind. The team was very professional, friendly, and easy to work with. Highly recommend!"

Matthew U on November 2025


Avatar for Square One Radon LLC

Square One Radon LLC

5.00(
1
)
Approved Pro

Square One Radon LLC

5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

Fully certified and locally owned, Square One Radon offers full service radon testing, radon mitigation, crawlspace encapsulation, and new construction radon services. Square One stands apart from the competition by utilizing the most scientific and calculated approaches to providing radon testing and mitigation solutions. Precise measurements to determine and document air flow, air pressure, pressure field extension, and more are routine practice at Square One. Unfortunately, many radon companies do not invest in the tools, training and techniques required to provide the most effective and efficient solutions to radon problems. Square One Radon was founded with the ideal of offering some of the most advanced, reliable, and proven testing and mitigation technologies in an affordable and practical solution for homeowners, businesses, schools, and other clients. Rob Hartop, Owner and Founder, brings eight years of experience in the radon industry to the Western Slope of Colorado along with his NRPP certifications in both radon testing and radon mitigation. Rob is also a member of the American Association of Radon Scientists and Technologists (AARST), spent over 12 years working in customer relations, has over four years experience in automotive and industrial fluid line fabrication, and holds a Bachelor of Business Adminnistration with concentrations in finance and economics.

"Square One Radon was professional, knowledgeable, reasonably priced, prompt, and did a beautiful job. The company's owner, Rob is the best. I would recommend his company enthusiastically and without any reservations. I'm a retired consumer-protection lawyer, so I know an outstanding company when I see one."

Pat T on January 2023

Fully certified and locally owned, Square One Radon offers full service radon testing, radon mitigation, crawlspace encapsulation, and new construction radon services. Square One stands apart from the competition by utilizing the most scientific and calculated approaches to providing radon testing and mitigation solutions. Precise measurements to determine and document air flow, air pressure, pressure field extension, and more are routine practice at Square One. Unfortunately, many radon companies do not invest in the tools, training and techniques required to provide the most effective and efficient solutions to radon problems. Square One Radon was founded with the ideal of offering some of the most advanced, reliable, and proven testing and mitigation technologies in an affordable and practical solution for homeowners, businesses, schools, and other clients. Rob Hartop, Owner and Founder, brings eight years of experience in the radon industry to the Western Slope of Colorado along with his NRPP certifications in both radon testing and radon mitigation. Rob is also a member of the American Association of Radon Scientists and Technologists (AARST), spent over 12 years working in customer relations, has over four years experience in automotive and industrial fluid line fabrication, and holds a Bachelor of Business Adminnistration with concentrations in finance and economics.

"Square One Radon was professional, knowledgeable, reasonably priced, prompt, and did a beautiful job. The company's owner, Rob is the best. I would recommend his company enthusiastically and without any reservations. I'm a retired consumer-protection lawyer, so I know an outstanding company when I see one."

Pat T on January 2023


Avatar for Valley Restoration & Construction, Inc.

Valley Restoration & Construction, Inc.

4.93(
7
)
Approved Pro

Valley Restoration & Construction, Inc.

4.93(
7
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

Established in 2014, Valley Restoration & Construction, Inc., is committed to excellence and continues to be an outstanding business in Montrose county and the surrounding area. Valley Restoration & Construction, Inc., prides itself on an outstanding record of quality service. Our longevity is a testament to the level of service and quality you'll get when you choose Valley Restoration & Construction, Inc., for your abatement and restoration needs. We have a full staff of highly talented and motivated individuals that are eager to help you with all of your needs. We are excited that you have expressed an interest in our services and we look forward to working with you.

"â ¦"

Jerilyn B on March 2022

Established in 2014, Valley Restoration & Construction, Inc., is committed to excellence and continues to be an outstanding business in Montrose county and the surrounding area. Valley Restoration & Construction, Inc., prides itself on an outstanding record of quality service. Our longevity is a testament to the level of service and quality you'll get when you choose Valley Restoration & Construction, Inc., for your abatement and restoration needs. We have a full staff of highly talented and motivated individuals that are eager to help you with all of your needs. We are excited that you have expressed an interest in our services and we look forward to working with you.

"â ¦"

Jerilyn B on March 2022


Avatar for Stanton Engineering Solutions Inc.

Stanton Engineering Solutions Inc.

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Stanton Engineering Solutions Inc.

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
13 local quotes requested
21 years of experience

Stanton Engineering Solutions, Inc. is committed to excellence in 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.

Stanton Engineering Solutions, Inc. is committed to excellence in 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.


Avatar for SERVPRO of Montrose / Telluride

SERVPRO of Montrose / Telluride

No reviews yet

SERVPRO of Montrose / Telluride

No reviews yet
59 years of experience

As a trusted leader in the restoration industry, SERVPRO of Montrose / Telluride provides 24-hour residential and commercial services. As a locally owned and operated business, we’re dedicated to being faster to any size disaster, with the training, equipment, and expertise to handle your restoration and cleaning needs.

As a trusted leader in the restoration industry, SERVPRO of Montrose / Telluride provides 24-hour residential and commercial services. As a locally owned and operated business, we’re dedicated to being faster to any size disaster, with the training, equipment, and expertise to handle your restoration and cleaning needs.


ASR Companies, Inc.

5.00(
1
)

ASR Companies, Inc.

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

ASR Companies specializes in performing reconstruction, restoration and renovation services on occupied properties across the Western United States. Our clients include homeowners, homeowner associations, home builders, management companies, apartment owners, commercial property owners, engineers, architects, insurance companies, contractors, attorneys and government entities.

ASR Companies specializes in performing reconstruction, restoration and renovation services on occupied properties across the Western United States. Our clients include homeowners, homeowner associations, home builders, management companies, apartment owners, commercial property owners, engineers, architects, insurance companies, contractors, attorneys and government entities.


Avatar for Moldlab

Moldlab

4.74(
352
)

Moldlab

4.74(
352
)
Customers say: True professional
26 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

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.


Frostbusters & Coolth Co.

No reviews yet

Frostbusters & Coolth Co.

No reviews yet
41 years of experience

Frostbusters & Coolth Co. is a full-service Home Performance Contractor. We first help our clients learn their best options for improving the health, safety, comfort, & efficiency of their homes by conducting an energy audit. We then work with the customer to implement the recommended improvements to their home. We work with gas & electric utilities that offer rebates to their customers to help cover the cost of the audit & improvements. We also work with home builders as their "Energy Rater", providing consultation, design assistance, testing, and certification of their homes as ENERGY STAR qualified homes.

Frostbusters & Coolth Co. is a full-service Home Performance Contractor. We first help our clients learn their best options for improving the health, safety, comfort, & efficiency of their homes by conducting an energy audit. We then work with the customer to implement the recommended improvements to their home. We work with gas & electric utilities that offer rebates to their customers to help cover the cost of the audit & improvements. We also work with home builders as their "Energy Rater", providing consultation, design assistance, testing, and certification of their homes as ENERGY STAR qualified homes.


Avatar for Restoration 1 of Western Colorado

Restoration 1 of Western Colorado

5.00(
2
)

Restoration 1 of Western Colorado

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Services we offer: Water Damage Restoration, Fire & Smoke Damage Restoration, Trauma Restoration, and Mold Remediation, If you aren't 100% satisfied let us know and we will fix it. If we can't then you won't pay for that service. In addition we offer Commercial Building Restoration Services, Emergency Services, Disaster Response, Storm Damage Restoration, Sewage Cleaning. We are available 24 hours a day/ 7 days a week / 365 days a year to Restore Your Property at Restoration 1 of Western Colorado! We guarantee our clients 100% satisfaction with our services.

Services we offer: Water Damage Restoration, Fire & Smoke Damage Restoration, Trauma Restoration, and Mold Remediation, If you aren't 100% satisfied let us know and we will fix it. If we can't then you won't pay for that service. In addition we offer Commercial Building Restoration Services, Emergency Services, Disaster Response, Storm Damage Restoration, Sewage Cleaning. We are available 24 hours a day/ 7 days a week / 365 days a year to Restore Your Property at Restoration 1 of Western Colorado! We guarantee our clients 100% satisfaction with our services.

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FAQs for radon gas testing projects in Montrose, CO

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 Montrose, CO homeowners’ guide to radon gas testings

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