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Radon gas testers in Castle Rock

Avatar for First Priority Home Inspections
First Priority Home Inspections
14475 Seminole Lane
5.00(
3
)
Approved Pro
First Priority Home Inspections
14475 Seminole Lane
5.00(
3
)
Approved Pro
Customers say: Quick response
12 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality regardless of how large or small the job.

"James was very thorough and knowledgeable. He’s available to chat and always willing to help even after the inspection. I highly recommend!"

robb w on June 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality regardless of how large or small the job.

"James was very thorough and knowledgeable. He’s available to chat and always willing to help even after the inspection. I highly recommend!"

robb w on June 2025


Avatar for Lifetime Radon Solutions, Inc.
Lifetime Radon Solutions, Inc.
1819 Nelson Rd
4.88(
118
)
Approved Pro
Lifetime Radon Solutions, Inc.
1819 Nelson Rd
4.88(
118
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
69 local quotes requested

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!

"They were prompt, polite and did quality work."

Jeff P on March 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!

"They were prompt, polite and did quality work."

Jeff P on March 2025


Aristeia Radon, LLC
9249 South Broadway, #200-382
4.98(
29
)
Approved Pro
Aristeia Radon, LLC
9249 South Broadway, #200-382
4.98(
29
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
24 local quotes requested

Aristeia Radon, LLC is a locally owned and operated company, that values honesty and integrity in every aspect of business. We do not take the easy way out, and guarantee our work every single time, because we know how important it is to feel safe in your home. We are NRPP certified in testing, analysis, and mitigation for radon. Please feel free to contact us today!

"Very knowledgeable and quick. Educated us on everything we needed to know."

Paul S on February 2025

Aristeia Radon, LLC is a locally owned and operated company, that values honesty and integrity in every aspect of business. We do not take the easy way out, and guarantee our work every single time, because we know how important it is to feel safe in your home. We are NRPP certified in testing, analysis, and mitigation for radon. Please feel free to contact us today!

"Very knowledgeable and quick. Educated us on everything we needed to know."

Paul S on February 2025


Avatar for Mold Inspection Sciences of Boulder
Mold Inspection Sciences of Boulder
PO Box 270664
5.00(
22
)
Approved Pro
Mold Inspection Sciences of Boulder
PO Box 270664
5.00(
22
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
23 years of experience

Mold Inspection Sciences of Boulder offers our valued clients expert mold and moisture inspection and mold testing services. Our company has performed thousands of inspections since we were founded in 2002. We have an A+ record with the Better Business Bureau with no customer complaints. Looking for More Advice on Mold, Allergy, and Air Quality Impacting Your Family, Home, or Business? Listen in to The Secret Life of Mold Podcast Now Streaming On: Apple: https://podcasts.apple.com/us/podcast/the-secret-life-of-mold-mold-inspection-radio/id1459902004 Google: https://www.google.com/podcasts?feed=aHR0cHM6Ly9hbmNob3IuZm0vcy9hNWU5ZDQwL3BvZGNhc3QvcnNz Spotify: https://open.spotify.com/show/1J1M4djZa41ICtMR0kCcMl Stitcher: https://www.stitcher.com/podcast/mold-inspection-sciences/the-secret-life-of-mold

"Fantastic. I couldn't have asked for a better experience."

Kelsey A on August 2018

Mold Inspection Sciences of Boulder offers our valued clients expert mold and moisture inspection and mold testing services. Our company has performed thousands of inspections since we were founded in 2002. We have an A+ record with the Better Business Bureau with no customer complaints. Looking for More Advice on Mold, Allergy, and Air Quality Impacting Your Family, Home, or Business? Listen in to The Secret Life of Mold Podcast Now Streaming On: Apple: https://podcasts.apple.com/us/podcast/the-secret-life-of-mold-mold-inspection-radio/id1459902004 Google: https://www.google.com/podcasts?feed=aHR0cHM6Ly9hbmNob3IuZm0vcy9hNWU5ZDQwL3BvZGNhc3QvcnNz Spotify: https://open.spotify.com/show/1J1M4djZa41ICtMR0kCcMl Stitcher: https://www.stitcher.com/podcast/mold-inspection-sciences/the-secret-life-of-mold

"Fantastic. I couldn't have asked for a better experience."

Kelsey A on August 2018


Avatar for Altura Environmental Services
Altura Environmental Services
11881 East 33rd Avenue
5.00(
5
)
Approved Pro
Altura Environmental Services
11881 East 33rd Avenue
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
79 local quotes requested

We have been in business since 2019 specializing in asbestos removal. We have a great crew with 15-20 year's experience. Altura Environmental Services is committed to providing you with a safer home. Give us a call we can provide you with a free estimate!

"Working with Manny, Keith, and team was a great experience. They were very communicative and always showed up in person to address any concerns that I had. They did excellent work carefully and quickly and were pleasant people to work with."

Joshua T on April 2025

We have been in business since 2019 specializing in asbestos removal. We have a great crew with 15-20 year's experience. Altura Environmental Services is committed to providing you with a safer home. Give us a call we can provide you with a free estimate!

"Working with Manny, Keith, and team was a great experience. They were very communicative and always showed up in person to address any concerns that I had. They did excellent work carefully and quickly and were pleasant people to work with."

Joshua T on April 2025


Avatar for DRYmedic of Parker CO
DRYmedic of Parker CO
7334 S. Alton Way
5.00(
4
)
Approved Pro
DRYmedic of Parker CO
7334 S. Alton Way
5.00(
4
)
Approved Pro
23 local quotes requested
1 years of experience

DryMedic Restoration Services specializes in a comprehensive range of restoration services, including:​ Water Damage Restoration: Addressing issues caused by leaks, floods, or other water-related incidents.​ Fire Damage Restoration: Repairing and restoring properties affected by fire and smoke.​ Mold Remediation: Identifying and removing mold to ensure a safe environment.​ Storm Damage Restoration: Handling damages resulting from severe weather conditions.​ Contents Restoration: Restoring personal belongings damaged by water, fire, or mold.​ Biohazard Cleanup: Managing the safe removal of hazardous materials.

DryMedic Restoration Services specializes in a comprehensive range of restoration services, including:​ Water Damage Restoration: Addressing issues caused by leaks, floods, or other water-related incidents.​ Fire Damage Restoration: Repairing and restoring properties affected by fire and smoke.​ Mold Remediation: Identifying and removing mold to ensure a safe environment.​ Storm Damage Restoration: Handling damages resulting from severe weather conditions.​ Contents Restoration: Restoring personal belongings damaged by water, fire, or mold.​ Biohazard Cleanup: Managing the safe removal of hazardous materials.


Avatar for A HEALTHY HOME LLC
A HEALTHY HOME LLC
8379 Feather Grass Ct
5.00(
5
)
Approved Pro
A HEALTHY HOME LLC
8379 Feather Grass Ct
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
37 local quotes requested

Certified mold and asbestos testing service for the Denver metro area. Serving the Denver area for over 20 years. We offer high quality testing by experienced professionals.

"Very impressive service. Bob arrived on time, covered the floor from the front door to room he worked on. Sealed off the room and completed the remediation process. He cleaned up everything when he was finished and hauled it all away. Friendly, professional, and reasonably priced. I highly recommend him!!"

Mark F on December 2024

Certified mold and asbestos testing service for the Denver metro area. Serving the Denver area for over 20 years. We offer high quality testing by experienced professionals.

"Very impressive service. Bob arrived on time, covered the floor from the front door to room he worked on. Sealed off the room and completed the remediation process. He cleaned up everything when he was finished and hauled it all away. Friendly, professional, and reasonably priced. I highly recommend him!!"

Mark F on December 2024


Avatar for Veteran Radon
Veteran Radon
5.00(
13
)
Approved Pro
Veteran Radon
5.00(
13
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
136 local quotes requested

We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"We used Jason for evaluating the Radon for our basement. He was very courteous and polite. We were below the threshold needing remediation, but he was still willing to give me a ballpark estimate should we desire to do something in the future. He also shared some products on Amazon should we want to do our own long term tests. Very pleasant experience and gave us a great deal. I would recommend him and would do business with him again."

Andrew and Elin R on June 2024

We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"We used Jason for evaluating the Radon for our basement. He was very courteous and polite. We were below the threshold needing remediation, but he was still willing to give me a ballpark estimate should we desire to do something in the future. He also shared some products on Amazon should we want to do our own long term tests. Very pleasant experience and gave us a great deal. I would recommend him and would do business with him again."

Andrew and Elin R on June 2024


Avatar for B & R Environmental LLC
B & R Environmental LLC
9199 Sedalia Street
5.00(
2
)
Approved Pro
B & R Environmental LLC
9199 Sedalia Street
5.00(
2
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
159 local quotes requested

B & R Environmental, based in Denver, is your trusted General Abatement contractor, boasting over 25 years of expertise in residential and commercial asbestos removal. As a locally owned and owner-operated business, we pride ourselves on friendly professionalism, competitive pricing, and a commitment to excellence. At B & R, we're known for our speed, problem-solving skills, and readiness to tackle any job with efficiency and precision.

"Service went very well."

Judith A. C on September 2023

B & R Environmental, based in Denver, is your trusted General Abatement contractor, boasting over 25 years of expertise in residential and commercial asbestos removal. As a locally owned and owner-operated business, we pride ourselves on friendly professionalism, competitive pricing, and a commitment to excellence. At B & R, we're known for our speed, problem-solving skills, and readiness to tackle any job with efficiency and precision.

"Service went very well."

Judith A. C on September 2023


Avatar for Lightspeed Restoration of Aurora East
Lightspeed Restoration of Aurora East
261 Airport Blvd.
5.00(
1
)
Approved Pro
Lightspeed Restoration of Aurora East
261 Airport Blvd.
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
191 local quotes requested

When disaster strikes, you can count on Lightspeed Restoration to provide 24/7 emergency response. We specialize in water damage restoration, fire damage restoration, and indoor air quality solutions. Our skilled team is equipped to handle any water-related challenges, from extraction to drying and restoration. In the unfortunate event of fire damage, we're here to assess, clean, and restore your property. When it comes to indoor air quality, our services include mold remediation, air duct cleaning, and moisture control. Trust us to deliver reliable solutions that restore your property and ensure a healthy environment.

"Mara was fantastic. She responded quickly and came out and resolved the issue the same day. Would definitely recommend."

Annie J on July 2024

When disaster strikes, you can count on Lightspeed Restoration to provide 24/7 emergency response. We specialize in water damage restoration, fire damage restoration, and indoor air quality solutions. Our skilled team is equipped to handle any water-related challenges, from extraction to drying and restoration. In the unfortunate event of fire damage, we're here to assess, clean, and restore your property. When it comes to indoor air quality, our services include mold remediation, air duct cleaning, and moisture control. Trust us to deliver reliable solutions that restore your property and ensure a healthy environment.

"Mara was fantastic. She responded quickly and came out and resolved the issue the same day. Would definitely recommend."

Annie J on July 2024

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FAQs for radon gas testing projects in Castle Rock, 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 Castle Rock, CO homeowners’ guide to radon gas testings
From average costs to expert advice, get all the answers you need to get your job done.
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