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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
15 local quotes requested

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 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
5 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 Stanton Engineering Solutions Inc.

Stanton Engineering Solutions Inc.

New on AngiNew on Angi
Approved Pro

Stanton Engineering Solutions Inc.

New on AngiNew on Angi
Approved Pro
15 local quotes requested
20 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.



Rocky Mountain Radon Mitigation

No reviews yet

Rocky Mountain Radon Mitigation

No reviews yet

Rocky Mountain Radon Mitigation LLC is a locally owned & operated company servicing all four corners of Colorado. We are NRPP certified in radon testing and mitigation. We are committed to increasing awareness of radon and its health risks, as well educating our customers on the appropriate methods to reduce risk in their homes, schools, or businesses.

Rocky Mountain Radon Mitigation LLC is a locally owned & operated company servicing all four corners of Colorado. We are NRPP certified in radon testing and mitigation. We are committed to increasing awareness of radon and its health risks, as well educating our customers on the appropriate methods to reduce risk in their homes, schools, or businesses.


Avatar for Eco Tech Environmental Inc.

Eco Tech Environmental Inc.

5.00(
7
)

Eco Tech Environmental Inc.

5.00(
7
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Our goal at ETE is to provide quality services and value to our clients at competitive rates. As a team of excellent people we strive to exceed our customers’ expectations every day. With over 30 years of knowledge and experience combined, the owners and staff of Eco Tech Environmental assure that your abatement experience, as overwhelming as may seem, will run as pleasant as can be.

"Eco Tech did a great job removing tiles from two different rooms in my basement. They provided a clear estimate and completed the work on time. When I had questions they were very responsive. I would certainly hire them again."

Walter G on September 2019

Our goal at ETE is to provide quality services and value to our clients at competitive rates. As a team of excellent people we strive to exceed our customers’ expectations every day. With over 30 years of knowledge and experience combined, the owners and staff of Eco Tech Environmental assure that your abatement experience, as overwhelming as may seem, will run as pleasant as can be.

"Eco Tech did a great job removing tiles from two different rooms in my basement. They provided a clear estimate and completed the work on time. When I had questions they were very responsive. I would certainly hire them again."

Walter G on September 2019


Avatar for Radon Engineering Consultants

Radon Engineering Consultants

5.00(
1
)

Radon Engineering Consultants

5.00(
1
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Making homes safe for you and your family is our passion. Radon Engineering Consultants has been providing radon testing and mitigation in the valley for over 25 years. You don’t survive in a small community like ours for that long unless you’re doing something right. Lung Cancer kills thousands of people every year, and often in people who have never even smoked a cigarette. Why? Because radon in homes is the second leading cause of lung cancer after cigarette smoking. You can watch a very informative video by Dr Oz discussing the #1 Cancer Risk in Homes here. http://www.doctoroz.com/videos/1-cancer-risk-home-pt-1. You don’t have to live with a radon problem. A simple and inexpensive radon test can tell you if your home has elevated radon levels. Radon Engineering only uses Continuous Radon Monitors (CRM) to provide the most accurate radon readings and can provide the results in just 48 hours. And, if your home does have radon above the EPA’s recommended levels, we will provide a free evaluation of the causes and propose an affordable and quick solution. Radon Engineering Consultants is certified by the National Environmental Health Association (NEHA) as approved Radon Mitigators, and has successfully reduced the radon to safe levels in thousands of homes over the last 25 years. Additional DBA - New Visions LLC.

Making homes safe for you and your family is our passion. Radon Engineering Consultants has been providing radon testing and mitigation in the valley for over 25 years. You don’t survive in a small community like ours for that long unless you’re doing something right. Lung Cancer kills thousands of people every year, and often in people who have never even smoked a cigarette. Why? Because radon in homes is the second leading cause of lung cancer after cigarette smoking. You can watch a very informative video by Dr Oz discussing the #1 Cancer Risk in Homes here. http://www.doctoroz.com/videos/1-cancer-risk-home-pt-1. You don’t have to live with a radon problem. A simple and inexpensive radon test can tell you if your home has elevated radon levels. Radon Engineering only uses Continuous Radon Monitors (CRM) to provide the most accurate radon readings and can provide the results in just 48 hours. And, if your home does have radon above the EPA’s recommended levels, we will provide a free evaluation of the causes and propose an affordable and quick solution. Radon Engineering Consultants is certified by the National Environmental Health Association (NEHA) as approved Radon Mitigators, and has successfully reduced the radon to safe levels in thousands of homes over the last 25 years. Additional DBA - New Visions LLC.


National Property Inspections of Colorado

No reviews yet

National Property Inspections of Colorado

No reviews yet
12 years of experience

National Property Inspections will provide you with a thorough unbiased, detailed, confidential, and professional inspection of your property, whether that is your home or a commercial building. Our office is a locally owned franchise, part of the NPI organization of nearly 300 inspectors. National Property Inspections, founded in 1987, is among the oldest and most widely-respected names in the home and commercial inspection business.Each year, NPI professionals perform tens of thousands of independent, objective inspections in the United States and Canada. NPI inspectors have access to technical support seven days a week. This means questions are answered in a timely manner, which means you receive complete results when you need them. We provide each customer with a state-of-the art report, which clearly explains the inspection results. We are trained to communicate the significance of each major and minor property concern. We carry errors and omissions (E&O) insurance to show that we stand behind the NPI report.

National Property Inspections will provide you with a thorough unbiased, detailed, confidential, and professional inspection of your property, whether that is your home or a commercial building. Our office is a locally owned franchise, part of the NPI organization of nearly 300 inspectors. National Property Inspections, founded in 1987, is among the oldest and most widely-respected names in the home and commercial inspection business.Each year, NPI professionals perform tens of thousands of independent, objective inspections in the United States and Canada. NPI inspectors have access to technical support seven days a week. This means questions are answered in a timely manner, which means you receive complete results when you need them. We provide each customer with a state-of-the art report, which clearly explains the inspection results. We are trained to communicate the significance of each major and minor property concern. We carry errors and omissions (E&O) insurance to show that we stand behind the NPI report.



Avatar for (970) 669-6544 SWAT Radon Mitigation Fort Collins

(970) 669-6544 SWAT Radon Mitigation Fort Collins

No reviews yet

(970) 669-6544 SWAT Radon Mitigation Fort Collins

No reviews yet
37 years of experience

SWAT Environmental has installed over 50,000 radon systems throughout the country. We are America’s largest radon abatement company, and we have more certified technicians on staff than any other competitor. The experienced staff at SWAT Environmental leads the industry in removing radon from homes, schools, apartment buildings, condominiums, commercial and government buildings. SWAT Environmental is a trusted partner of some of the largest real estate firms in the country, and we lead the industry in quality and overall value. All of our technicians go through a rigorous training program that prepares them to make your home or office safe from the dangers of radon. When you have a problem with radon, you can trust the experienced professionals at SWAT Environmental.

SWAT Environmental has installed over 50,000 radon systems throughout the country. We are America’s largest radon abatement company, and we have more certified technicians on staff than any other competitor. The experienced staff at SWAT Environmental leads the industry in removing radon from homes, schools, apartment buildings, condominiums, commercial and government buildings. SWAT Environmental is a trusted partner of some of the largest real estate firms in the country, and we lead the industry in quality and overall value. All of our technicians go through a rigorous training program that prepares them to make your home or office safe from the dangers of radon. When you have a problem with radon, you can trust the experienced professionals at SWAT Environmental.

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Radon Detection and Reduction questions, answered by experts

Sampling typically takes 1-3 hours, and depending on the provider, lab results are available within 2-7 days.

Mitigation reduces radon levels, protecting your health and complying with safety standards.

You should have a professional test for radon every two to five years. A good rule of thumb is to get testing done every five years if you’ve never had an issue before and every two years if you have. You may also want to schedule testing if you notice symptoms of radon exposure or if you do intermittent DIY radon testing and notice changes in your levels between tests. If you have an active radon monitor, you can schedule testing if you notice levels increasing over time.

Properties should ideally be tested for radon every 2 to 5 years or sooner when changes to the property structure or ventilation occur that might impact airflow.

Testing typically costs between $150 and $500, depending on the method used and the number of areas tested.

The Rifle, CO homeowners’ guide to radon detection and reduction services

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