Radon Testing

The U.S. Environmental Agency (EPA), the U.S. Surgeon General, and the Centers for Disease Control (CDC) all strongly recommend that every homebuyer have an indoor Radon test performed prior to taking occupancy. Read more to find out why and see how easy it is to have a comprehensive Radon test performed.

Contact Us Today!

Call: (720) 588-2288
Email: info@firstsummithome.com


Radon is a naturally occurring, colorless, odorless, radioactive gas. Radon concentrations vary based on the geological conditions of the area. Radon enters the home through various means and collects inside.

Radon is a Class A human carcinogen. The EPA and the Surgeon General estimate that Radon is responsible for more than 21,000 deaths annually, making it the leading cause of lung cancer among non-smokers.


Radon levels are considered to be high in Colorado.

According to the Colorado Department of Public Health and Environment, about half of the homes in Colorado have Radon levels higher than the EPA recommended action level of 4 picocuries per liter (pCi/L).

Click the links below for more information.

Colorado Radon Map


Accurate results can be achieved with a 48 hour test.

Fisrt Summit Home Inspections Radon Test

All homes should be tested regardless of geographic location or foundation type. The test process is easy. We use SunRadon 1028-XP Continuous Radon Monitors. A monitor is placed in a carefully chosen location and run for 48 hours.

Tamper Detection
The monitors we use are upgraded to track Temperature, Humidity & Barometric Pressure. This, along with built-in motion detection helps us to identify any efforts to tamper with the location of the monitor or the environment (opening windows, running fans, etc.) during the test. This way you can be confident in the results you receive.

Once we retrieve the monitors, the information is downloaded and compiled into an easy to read report. After that, we will meet to discuss the results and the EPA’s recommendations based on your results.


Colorado does not require certification for Radon testing. So, not all companies offering testing adhere to equal levels of proficiency and quality control. The National Radon Proficiency Program (NRPP) is recognized by Federal Agencies and required by some State Radon programs. NRPP credentials indicate to homeowners and agents that we have the skills and equipment required to provide accurate Radon testing. We are NRPP certified (ID#111641-RT) as a Residential Radon Measurement Provider. Visit www.nrpp.info for more information.

The process to become NRPP certified is rigorous. It includes the following:

  • Complete an NRPP approved training course and pass a proctored exam
  • Use and register only approved test devices
  • Test a device against a known amount of Radon at an approved facility
  • Maintain a Quality Assurance Program
  • Meet Continuing Education requirements
  • Send equipment to an approved facility for annual calibration
  • Adhere to the NRPP Code of Ethics

We Look Forward to Working for You

We provide extra peace of mind by being insured with both General Liability and Errors & Omissions Insurance. We are looking forward to meeting you!

Click below to schedule a Radon Test online or call us at (720) 588-2288.

Jennifer Behar
Jennifer Behar
Jason/First Summit Home Inspections is AMAZING!! Very professional and he goes the extra mile. We used him to inspect a house in a standard purchase contract. The report was very thorough and extremely detailed. Not only that, but in his online system you could actually see the suggested steps to remedy anything that was noticed. Can’t speak highly enough of them. If you’re looking for an inspector, use First Summit Home Inspections!
I would highly recommend Jason Lange and First Summit Home Inspections. To give a brief overview, I found Jason and his work thorough, comprehensive, detailed, and friendly. During my inspection process for purchasing a house I First Summit Home Inspections. While I wasn't able to personally attend the inspection due to work, Jason worked with my realtor so he could be there; I really appreciated that he was flexible enough to do this with a third party. Some additional services I utilized besides the standard home inspection was a sewer line scope, radon testing, and thermal imaging. He was very thorough and went above and beyond; he had an extremely thorough report for me that he not only emailed me, but also physically gave to my realtor to pass to me. This report had everything I could've wanted and more, things I wouldn't have thought to check or even consider were on there. The report was comprehensive and even included multiple pictures to help illustrate and highlight what he was describing. The report website was easy to use and had every single item inspected ranked on a scale of severity. With any problem noted, he included ways to mitigate or correct them. He got into every space possible such as everywhere on the roof and in the separated attics, tested every single fixture and outlet, and tested every single water line comprehensively. The best part was the phone call he coordinated with my family member who was purchasing it with me; during this call, he personally went over the report, addressing every single item in it. He was very patient and answered any questions we had and educated us on issues that are unique to Colorado. I was very grateful for his time.
Duane Ciacco
Duane Ciacco
Jason performed a radon test at my house. Jason was very informative, answered my questions, and provided excellent service. He practiced COVID safety protocols, always wearing a mask. He even put on shoe booties before coming into the house, very nice. The report was detailed and included several other documents to provide more information about radon.
john hunt
john hunt
Jason performed radon testing for us. We were very satisfied with the quality of his work. Very professional, followed all COVID protocols, explained what he was going to do, and was on time for initial test and followup test. His reports were very helpful about the dangers of radon and what our options were. We would use him again and would recommend his firm to anyone.
Edelweiss Chalet
Edelweiss Chalet
Jason Lange was highly recommended to us recently. Can't say enough about how satisfied my wife and I are about the expert service we received. Jason is polite and very knowledgeable. He practiced Covid safety by wearing a mask at all times while in our home. He,also, puts on shoe covers which protected our carpet. In getting to know Jason we discovered he has extensive experience in home building. He checked our furnace room and our crawl space while in our home at no extra charge even though he was only here to do a Radon test. We heartily recommend First Summit Home Inspections without reservation. Thanks Jason, Tim and Debra Specht
Brendan Gaibrois
Brendan Gaibrois
Jason is thorough and easy to talk to. We were very satisfied with our home inspection and final report. We liked the way he handled business safely during COVID.