Radon System Repair in Calgary, AB & More:
Ensure Peak Performance
Radon Doctors provides professional radon system repair and radon fan replacement services for homeowners throughout Calgary and surrounding Alberta communities. Whether your system has stopped working, is making unusual noises, or you simply haven’t had it inspected in years, our certified team can diagnose the issue accurately and restore your system to peak performance.

Radon System malfunction
What Are Signs My Radon Mitigation System Isn’t Working?
A radon mitigation system that isn’t functioning properly isn’t just an inconvenience – it’s a health risk. Health Canada has established a guideline of 200 Bq/m³ as the action level for radon in Canadian homes, and a failed or underperforming mitigation system can cause indoor radon levels to climb above that threshold, without any visible warning signs. The following issues may warrant a radon mitigation system repair:
radon fan replacement
What Does a Radon Fan Do?
A radon fan is the engine behind your entire radon mitigation system. It works by continuously drawing radon gas from beneath your home’s foundation and venting it safely outside – before it has a chance to seep into your living space. Essentially, it reverses the natural flow of radon that would otherwise move upward through cracks, gaps, and penetration points in your foundation.

Common Questions
Frequently Asked Questions
Have more questions about radon system repairs? We’re always happy to explain the science.
Do I need to do anything to maintain my radon mitigation system?
Radon mitigation systems are largely passive, but that doesn’t mean they’re maintenance-free. At a minimum, you should check your system’s pressure indicator a few times per year and listen for any changes in fan noise. It’s also a good idea to have it professionally inspected every few years and to re-test your radon levels periodically to confirm that good results are holding. Small issues caught early are far less costly to fix than a complete system failure.
What does a radon system repair typically involve?
Radon mitigation repairs vary based on the issue. Common repairs include replacing a failed fan, resealing penetration points where suction is being lost, repairing or re-routing piping that has been damaged or improperly installed, and addressing water intrusion issues. Every repair starts with a proper diagnosis – we’ll assess the system’s pressure and airflow before recommending any work, so you’re only paying for what’s actually needed.
Should I replace my old radon mitigation system or just repair it?
This depends on the age of the system, the nature of the problem, and whether the original installation was done correctly. If your fan has failed, but the rest of the system is sound, a replacement fan typically all you’ll need. If the system was poorly installed to begin with – e.g. wrong placement, insufficient suction, improper sealing, etc. – a repair may only offer a short-term fix, making a system replacement more cost-effective in the long run. We’ll give you an honest assessment of whether a repair or a redesigned system makes more sense for your situation.
Why is my radon fan making noise?
Some low-level humming from a radon fan is completely normal, as it’s a motorized device running around the clock. However, if you notice a change in the sound your fan is making – like rattling, grinding, increased vibration, or a high-pitched whine – that’s a sign something may be wrong. Unusual noises often indicate that the fan’s motor or bearings are beginning to fail. Catching and addressing this early can prevent a complete breakdown and keep your system running without interruption.
Our radon system repair Process
Three Clear Steps. Verified Protection.
Getting your radon mitigation system back to optimal performance is straightforward when you work with our certified, experienced, and knowledgeable team.
Inspection & Diagnosis
We start by thoroughly evaluating your existing radon mitigation system. We check pressure readings, airflow, fan operation, piping integrity, and foundation sealing. We don’t skip steps or assume the problem before looking at the data.
Explanation & Repair
Once we’ve identified the issue, we explain exactly what we found in plain language and walk you through the repairs we’d recommend. No confusing jargon, no pressure – just a straightforward plan with transparent estimates.
Follow-Up Testing
We complete the repair to the highest standards, then recommend follow-up radon testing to confirm your system is performing the way it should. You’ll know what was done, why it was done, and how to monitor your system going forward.
why choose us
Why Radon Doctors Is Calgary’s Trusted Choice for Radon Repair
Radon Doctors prioritizes science and education over sales, delivering transparent, long-term results.
No Guesswork
Our founder’s background in environmental science and engineering means we evaluate your system with real data before recommending any repair.
Education-First Approach
We aim to provide every customer with a clear understanding of their system and how to monitor it going forward – an informed homeowner is a protected one.
Certified Experts
We follow best practices and standards established by Canada’s leading radon certification body, so every repair meets the professional benchmark your home deserves.
Local Expertise
We understand how Alberta’s climate, soil conditions, and home construction styles affect radon behaviour and system performance, ensuring solutions tailored to your needs.
Honest Assessments – Always
We’ll tell you exactly what your system needs – and what it doesn’t. If a simple fan replacement will solve the problem, that’s what we’ll recommend. No gimmicks or upselling.
Community-Minded
You’re dealing directly with the person doing the work, not a call centre or a sales team. That means faster communication, greater accountability, and a more personal experience.
Client Reviews
Trusted by Calgary Families
Real results from real homeowners who chose a science-based approach.
Service Area
Serving Greater Calgary
We provide professional radon testing and mitigation across Calgary and to surrounding communities within a 100km radius.
Resources
Learn About Radon in Calgary
Stay informed with our latest articles on radon safety. From initial testing to effective mitigation, we’ll help you protect what matters most.
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reach out Today
Be Sure Your
Radon System Is Working
If you’re unsure whether your radon mitigation system is performing correctly – or if you suspect something is wrong – don’t wait. Contact us today to schedule a diagnostic inspection and get the peace of mind that comes from knowing your home is in good hands.
Our mitigation services even extend to your crawl space – ask about crawl space encapsulation today.
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