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    Average homeowner rating
  • Verified reviews icon11
    Verified radon detection and reduction services reviews

Find Radon detection and reduction specialists in Keystone

Avatar for Lifetime Radon Solutions, Inc.

Lifetime Radon Solutions, Inc.

4.88(
119
)
Approved Pro

Lifetime Radon Solutions, Inc.

4.88(
119
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
1993 years of experience

Radon is a silent killer. It's a colorless, odorless radioactive gas which naturally occurs in the ground below us, and gets pulled into our homes, schools and businesses. Why should you worry about something you can't see or smell? Radon is the second-leading cause of lung cancer in the United States, with the US Surgeon General and the EPA estimating 20,000 Americans die every year due to radon exposure. Lifetime Radon Solutions is proud to be a locally owned and operated business that has been in operation since 1993! With years of experience and unmatched expertise we can help with any and all of your Radon testing and abatement needs. Get in touch today!

"Great work fair price, we wanted a free estimate and they worked with our schedule"

Matt D on November 2025

Radon is a silent killer. It's a colorless, odorless radioactive gas which naturally occurs in the ground below us, and gets pulled into our homes, schools and businesses. Why should you worry about something you can't see or smell? Radon is the second-leading cause of lung cancer in the United States, with the US Surgeon General and the EPA estimating 20,000 Americans die every year due to radon exposure. Lifetime Radon Solutions is proud to be a locally owned and operated business that has been in operation since 1993! With years of experience and unmatched expertise we can help with any and all of your Radon testing and abatement needs. Get in touch today!

"Great work fair price, we wanted a free estimate and they worked with our schedule"

Matt D on November 2025


Avatar for PowerHouse Home Performance

PowerHouse Home Performance

5.00(
3
)
Approved Pro

PowerHouse Home Performance

5.00(
3
)
Approved Pro
Super Service Award
Customers say: Quick response
2025 years of experience
Free onsite estimate

We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!

"Chance and his team were by far had the most competitive pricing. He was prompt to respond and kept me updated on what was happening. His crew was professional and worked quickly and diligently. I would highly recommend them."

Evelyn F on April 2025

We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!

"Chance and his team were by far had the most competitive pricing. He was prompt to respond and kept me updated on what was happening. His crew was professional and worked quickly and diligently. I would highly recommend them."

Evelyn F on April 2025


Colorado Radon Solutions, LLC

5.00(
1
)
Approved Pro

Colorado Radon Solutions, LLC

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2021 years of experience

Colorado Radon Solutions, LLC 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.

"Honest and reliable"

H. Harrison C on March 2022

Colorado Radon Solutions, LLC 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.

"Honest and reliable"

H. Harrison C on March 2022


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
2005 years of experience
Free onsite estimate

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 RCPI Residential Commercial Property Inspections

RCPI Residential Commercial Property Inspections

4.98(
85
)

RCPI Residential Commercial Property Inspections

4.98(
85
)
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

10 % FOR ALL VETERANS.... This is a veteran-owned business RCPI Home Inspections aims to provide accurate and reliable residential/ commercial reports to our current and potential customers with a friendly demeanor. We empower the customer to properly evaluate the facts, prior to making a substantial investment on a facility or dwelling. We provide inspection services across Colorado. From Denver To Pueblo & East To West.

"Nate did an excellent and thorough job, finding important laws that compromised safety as well as cosmetic imperfections which could be improved.. he also took all the time needed to explain his findings verbally as well as in his extensive and detailed report.. he even suggested ways to increase the safety and efficiency regarding repairs. So very thorough and trustworthy!"

Cheryl B on March 2020

10 % FOR ALL VETERANS.... This is a veteran-owned business RCPI Home Inspections aims to provide accurate and reliable residential/ commercial reports to our current and potential customers with a friendly demeanor. We empower the customer to properly evaluate the facts, prior to making a substantial investment on a facility or dwelling. We provide inspection services across Colorado. From Denver To Pueblo & East To West.

"Nate did an excellent and thorough job, finding important laws that compromised safety as well as cosmetic imperfections which could be improved.. he also took all the time needed to explain his findings verbally as well as in his extensive and detailed report.. he even suggested ways to increase the safety and efficiency regarding repairs. So very thorough and trustworthy!"

Cheryl B on March 2020


Avatar for Environmental Testing & Research Laboratories, Inc

Environmental Testing & Research Laboratories, Inc

4.85(
347
)

Environmental Testing & Research Laboratories, Inc

4.85(
347
)
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018


Avatar for Axium Inspections & Radon Mitigations

Axium Inspections & Radon Mitigations

4.90(
146
)

Axium Inspections & Radon Mitigations

4.90(
146
)
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

With 110% Best Price Guarantee, Axium offers the best priced home inspection with the best service! We pride ourselves on being a great resource for all real estate buyers and sellers in the Denver Metro area, Northern & Southern CO, as demonstrated in our over 5,000 5-star reviews. We are accredited and trusted and carry $1 million in Errors & Omissions and $2 million in General Liability. Established in 2007, our large team of Axium instructors have conducted over 120,000 inspections and are InterNACHI trained and certified – including six Certified Master Inspectors, considered to be the best in the world. Beyond home inspections, we offer radon testing and mitigation, mold inspections, well-water and water quality testing, Infra-red thermal inspections, wood-destroying organism, moisture and water inspections, damage-free lead based paint testing, sewer scopes, drone inspections, rental inspections, property inspections and commercial inspections. Axium is now also authorized to conduct residential rental property license inspections for the City of Denver. We offer flexible scheduling, same day service, holidays, and weekends. In addition to the 110% Best Price Guarantee, we also offer a 200% Satisfaction, a Buyers Protection Guarantee (if you decide against the home we inspect, we will inspect another free of charge in the next 30 days) and a Porch 90-Day Inspection Guarantee. In addition, home inspection customers receive a complimentary membership to Porch’s Home Assistant Gold Program which helps homeowners tackle everything on their move-in to-do lists. Axium strives to provide the best service at the best price! Call us today or visit us at https://www.axiuminspections.com.

"Axium Inspection did a thorough job on the inspection of my condo. Giving me explanations and pictures of various repairs and needs presented during the inspection."

Sheila P on October 2025

With 110% Best Price Guarantee, Axium offers the best priced home inspection with the best service! We pride ourselves on being a great resource for all real estate buyers and sellers in the Denver Metro area, Northern & Southern CO, as demonstrated in our over 5,000 5-star reviews. We are accredited and trusted and carry $1 million in Errors & Omissions and $2 million in General Liability. Established in 2007, our large team of Axium instructors have conducted over 120,000 inspections and are InterNACHI trained and certified – including six Certified Master Inspectors, considered to be the best in the world. Beyond home inspections, we offer radon testing and mitigation, mold inspections, well-water and water quality testing, Infra-red thermal inspections, wood-destroying organism, moisture and water inspections, damage-free lead based paint testing, sewer scopes, drone inspections, rental inspections, property inspections and commercial inspections. Axium is now also authorized to conduct residential rental property license inspections for the City of Denver. We offer flexible scheduling, same day service, holidays, and weekends. In addition to the 110% Best Price Guarantee, we also offer a 200% Satisfaction, a Buyers Protection Guarantee (if you decide against the home we inspect, we will inspect another free of charge in the next 30 days) and a Porch 90-Day Inspection Guarantee. In addition, home inspection customers receive a complimentary membership to Porch’s Home Assistant Gold Program which helps homeowners tackle everything on their move-in to-do lists. Axium strives to provide the best service at the best price! Call us today or visit us at https://www.axiuminspections.com.

"Axium Inspection did a thorough job on the inspection of my condo. Giving me explanations and pictures of various repairs and needs presented during the inspection."

Sheila P on October 2025


Avatar for ACE RADON CORPORATION

ACE RADON CORPORATION

4.78(
299
)

ACE RADON CORPORATION

4.78(
299
)
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

For 36 years, ACE Radon has earned a great reputation for Quality Radon Services at an affordable price. ACE utilizes cutting-edge technology exceeding National Radon Proficiency standards. ACE provides the most accurate and Certified testing methods, custom mitigation systems designed to provide the lowest possible radon levels and Air Purification Systems to provided relief for Allergies, Asthma and other lung problems. TEST FOR RADON, MITIGATE, IF NECESSARY AND PURIFY YOUR INDOOR AIR. RACE TO ACERADON.COM

"Outstanding service from Amanda who I contacted initially to Karl and Anthony who installed the radon system. My wife and I are extremely pleased. I would and have recommended Ace Radon to our friends and family. Thanks so much for everything."

Kenneth A on June 2023

For 36 years, ACE Radon has earned a great reputation for Quality Radon Services at an affordable price. ACE utilizes cutting-edge technology exceeding National Radon Proficiency standards. ACE provides the most accurate and Certified testing methods, custom mitigation systems designed to provide the lowest possible radon levels and Air Purification Systems to provided relief for Allergies, Asthma and other lung problems. TEST FOR RADON, MITIGATE, IF NECESSARY AND PURIFY YOUR INDOOR AIR. RACE TO ACERADON.COM

"Outstanding service from Amanda who I contacted initially to Karl and Anthony who installed the radon system. My wife and I are extremely pleased. I would and have recommended Ace Radon to our friends and family. Thanks so much for everything."

Kenneth A on June 2023


Avatar for Affordable Radon Services LLC

Affordable Radon Services LLC

5.00(
7
)

Affordable Radon Services LLC

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

We are an employee owned and operated company specializing in Radon Gas testing & reduction. We have been in business since 2011, primarily serving clients in the state of Colorado, and we are excited to now offer our full line of services to the greater Spokane, Washington & Northern Idaho markets! Our services include Radon Mitigation & testing, sump pump installation & pit excavation, crawl space vapor barrier installation, crawl space insulation services, & foundation drainage systems. 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! Let us help guide you through the process, giving you sound advice tailored to your specific needs for Radon Abatement/Mitigation to make your home safe. We offer each of our customers a “Free – No Obligation Quote” over the phone or a “Free On-Site Bid” where a member of our team will come to your home and show you placement options for you to choose from. We follow-up our quotes and on-site bids with written proposals sent directly to you. This allows you as our customer to feel comfortable knowing you have all the information needed to make the right choice. 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!

"They were able to get me what I needed in a timely manner. Glad I was able to find them in such short notice."

Charita T on May 2023

We are an employee owned and operated company specializing in Radon Gas testing & reduction. We have been in business since 2011, primarily serving clients in the state of Colorado, and we are excited to now offer our full line of services to the greater Spokane, Washington & Northern Idaho markets! Our services include Radon Mitigation & testing, sump pump installation & pit excavation, crawl space vapor barrier installation, crawl space insulation services, & foundation drainage systems. 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! Let us help guide you through the process, giving you sound advice tailored to your specific needs for Radon Abatement/Mitigation to make your home safe. We offer each of our customers a “Free – No Obligation Quote” over the phone or a “Free On-Site Bid” where a member of our team will come to your home and show you placement options for you to choose from. We follow-up our quotes and on-site bids with written proposals sent directly to you. This allows you as our customer to feel comfortable knowing you have all the information needed to make the right choice. 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!

"They were able to get me what I needed in a timely manner. Glad I was able to find them in such short notice."

Charita T on May 2023


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

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Radon Detection and Reduction questions, answered by experts

The short answer is no, air purifiers do not help with radon. While they certainly can improve the air quality of your home, they only clean pollutants from the air. Radon is radioactive, and it isn’t affected by the same filtration systems that handle other airborne particles, like dust and mold. The only thing that works is a radon mitigation system.

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.

Results from radon testing usually take a week to process after the test period ends, with expedited services sometimes available for urgent cases.

Mold, VOCs, radon, carbon monoxide, and particulate matter are typically measured.

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

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

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

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