Top-rated radon detection and reduction specialists.

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  • Verified reviews icon11
    Verified radon detection and reduction services reviews

Find Radon detection and reduction specialists in Delta

Avatar for RemediH2O

RemediH2O

104 North 8th Street
New on AngiNew on Angi
Approved Pro

RemediH2O

104 North 8th Street
New on AngiNew on Angi
Approved Pro
15 local quotes requested
Free onsite estimate

Our 5-star disaster response experts provide on-demand emergency services including flood response and restoration, water damage restoration, fire and smoke damage restoration, and mold remediation to Colorado residents in the Roaring Fork Valley and beyond. We're a locally owned and operated team of certified technicians who provide residential and commercial restoration including insurance assistance for an easy, stress-free experience.

Our 5-star disaster response experts provide on-demand emergency services including flood response and restoration, water damage restoration, fire and smoke damage restoration, and mold remediation to Colorado residents in the Roaring Fork Valley and beyond. We're a locally owned and operated team of certified technicians who provide residential and commercial restoration including insurance assistance for an easy, stress-free experience.


Avatar for Square One Radon LLC

Square One Radon LLC

PO Box 4016
5.00(
1
)
Approved Pro

Square One Radon LLC

PO Box 4016
5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 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

P.O. Box 4016
5.00(
38
)
Approved Pro

Square One Radon, LLC

P.O. Box 4016
5.00(
38
)
Approved Pro
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!

"Rob & his team were professional, friendly, respectful, neat, informative, communicative & did a great job! Fantastic crew & my radon level is way down. I could actually smell a difference in my home as soon as the work was completed, which only took one day in my 1700 sq ft house. 10 Stars to Square One!!!"

Darcy B on September 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!

"Rob & his team were professional, friendly, respectful, neat, informative, communicative & did a great job! Fantastic crew & my radon level is way down. I could actually smell a difference in my home as soon as the work was completed, which only took one day in my 1700 sq ft house. 10 Stars to Square One!!!"

Darcy B on September 2025


Avatar for Valley Restoration & Construction, Inc.

Valley Restoration & Construction, Inc.

236 S 3rd Street, Suite 334
4.93(
7
)
Approved Pro

Valley Restoration & Construction, Inc.

236 S 3rd Street, Suite 334
4.93(
7
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 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.

2116 Poplar Dr.
New on AngiNew on Angi
Approved Pro

Stanton Engineering Solutions Inc.

2116 Poplar Dr.
New on AngiNew on Angi
Approved Pro
20 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.



Rocky Mountain Radon Mitigation

13265 West Progress Circle
No reviews yet

Rocky Mountain Radon Mitigation

13265 West Progress Circle
No reviews yet
Emergency services offered

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.


Advanced Remediation Services

1414 S Wahsatch Ave
No reviews yet

Advanced Remediation Services

1414 S Wahsatch Ave
No reviews yet
10 years of experience

Advanced Remediation Services, Inc. (ARS Colorado) is a fully licensed and bonded Asbestos Removal, Lead Abatement, Mold Abatement, and Demolition Contractor. ARS Colorado prides itself on attention to detail, exceptional workmanship, and completing projects in a safe and timely manner. The owner of ARS Colorado has many years working with Federal contracts, School districts, Home owners, and Commercial clients. We offer our professional services to the entire states of Colorado, Wyoming, and New Mexico.

Advanced Remediation Services, Inc. (ARS Colorado) is a fully licensed and bonded Asbestos Removal, Lead Abatement, Mold Abatement, and Demolition Contractor. ARS Colorado prides itself on attention to detail, exceptional workmanship, and completing projects in a safe and timely manner. The owner of ARS Colorado has many years working with Federal contracts, School districts, Home owners, and Commercial clients. We offer our professional services to the entire states of Colorado, Wyoming, and New Mexico.



Eco Tech Environmental Inc.

6401 Broadway
5.00(
7
)

Eco Tech Environmental Inc.

6401 Broadway
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

Showing 1-10 of 27
Radon Detection and Reduction questions, answered by experts

Services test for allergens, mold, VOCs, and carbon monoxide levels to ensure a healthy indoor environment.

Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home’s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.

Yes, if high levels are detected, professionals can provide solutions for radon reduction.

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. 

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

What is radon? It’s a radioactive gas that naturally occurs in the ground, forming as uranium and thorium decay. It has no color or odor, so you don’t know if it’s seeping into your building’s foundation. Regular exposure to radon gas increases your chances of suffering from lung cancer. Radon testing measures the air inside your house for the presence of radon gas. If detected, the test will measure the severity of radon levels in your home’s air.

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The Delta, 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.