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Thorough and Professional Job

“Colin from Radon Controls came to do radon remediation at my house. We had ~150-200 radon or more on a bad day. After remediation we are down to ~5 on a good day, 10 on a bad day! Colin really took his time and did a thorough and professional job. Great explanations of what was being done. Colin really went all the way to make sure that we were happy customers. Would strongly recommend it if you need radon remediation in your house.”    - Kim  T. 

Professional and Certified Radon Testing and Mitigation Solutions

Radon Controls was co-founded in 2009 by Len Gieck and Pat Lagore. We started with the intention of helping people navigate the identification and remediation of radon in a way that made them feel assured and fully informed through the process. We strive for openness, clarity, honesty and fair pricing while still maintaining the highest standards of professionalism and the most up to date scientific approach to each and every project. 


Adding Colin Story to our professionally certified team in 2017 brings a total of 23 years of combined radon measurement and mitigation experience in Canada. The addition of Sally G in Customer Service ensures that each client receives the professional and individualized experience they deserve. Meet our team.

Our Story

Radon Controls Inc. is the first radon focused company in Alberta. We realized that householders were anxious as they were concerned about radon in their homes, but couldn't find any reliable, trustworthy information specific to Canada. From the beginning, our goal has been to address the fear by providing credible information coupled with sound, scientific and proven solutions. 


In 2007, Len learned of the dangers of radon gas and that it was the leading cause of lung cancer in non-smokers. He tested his home and discovered the radon levels were at a very unsafe level - over 300 bq/m3 (more than triple the acceptable World Health Organization level). With a daughter living in the basement of his home, he was deeply concerned and set out to find a solution.

Neither the federal nor the provincial governments were able to offer solutions at that time.


As a Master Builder, Len was able to conduct his own research and install a mitigation system, subsequently reducing the radon levels in his home to a safer level. As a builder, he wanted to share this benefit with his buyers and began to rough-in radon systems into his new homes almost a decade before it became a requirement in the building code.


Len and Pat each originally received certification in the US, and subsequently in Canada once protocols were established here, and certification became available.

Meet Our Team

Len Gieck, Founding Partner

*C-NRPP : Canadian National Radon Proficiency Program

Len is a pioneer in radon testing and mitigation (the science of reducing radon), and an award-winning home builder with over 40 years of building experience. His extensive scientific knowledge and understanding of building design, structure and construction, while navigating the complexities of the new building code, has prepared him well for even the most difficult radon mitigation requirements.

Pat Lagore, Founding Partner

C-NRPP Certified

Pat applies her C-NRPP education with hands-on experience in conjunction with continued studies in radon science through Advanced Diagnostic techniques, Large Building Mitigation and Rough-in controls for new construction. Pat specializes in commercial work and the building code. She also makes presentations to special interest groups, including the real estate community, to share information on radon testing and mitigation.

Colin Story

C-NRPP Certified

Colin joined the Radon Controls team in 2017 and has since completed hundreds of residential mitigations as well as many commercial mitigations. He prioritizes a science-based approach by applying diagnostics and scientific measurements to ensure maximum radon reduction with minimal energy expenditure. He has expanded his knowledge by participating in large scale school and other large building testing projects.

Sally Gee

Customer Service Specialist

Sally specializes in all things data and customer experience at Radon Controls. She may be the first voice you hear when you call us.

She tracks pre- and post-testing data and coordinates lab submissions. Sally also coordinates quality assurance and quality control to ensure that devices are handled appropriately. In addition, she tracks worker exposure to ensure that we stay safe while keeping you safe!

Our Values

  • A respectful working environment with each other and our clients

  • Work with integrity

  • Allow for open communication

  • Lead by example

  • Acknowledge success

  • Maintain the highest standards of quality workmanship

  • Foster continuous learning and growth

  • Ensure ultimate customer satisfaction

Guaranteed Results and Workmanship

Bring your radon concerns to us or book home testing and home mitigation today.

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