How to Safely Maintain Your Radon Mitigation System at Home

A radon mitigation system is one of the most effective ways to keep your home safe from radon gas. While professional installation is critical, ongoing maintenance ensures your system continues to operate efficiently, protecting your family from long-term health risks. If you live in Portland, where radon levels can vary from home to home, knowing how to maintain your mitigation system is essential. 

In this guide, we’ll cover the key steps to safely maintain your radon system at home and keep indoor air quality at safe levels.

1. Understand Your Radon System Components

Before you begin maintenance, it’s important to know the main parts of your radon mitigation system:

• Radon fan: Pulls radon gas from beneath the home and vents it outside.
  
• PVC piping: Channels radon gas from under the foundation to the outside.
  
• Sump pit or sub-slab depressurization points: Areas where radon gas is collected.
  
• Manometer or monitoring device: Shows whether the system is running properly.
  

Understanding each component will help you detect potential issues before they become serious.

2. Check Your Radon Fan Regularly

The radon fan is the heart of your system. If it stops working, radon can quickly accumulate inside your home. Here’s how to maintain it safely:
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• Listen for unusual sounds: A noisy or vibrating fan may indicate a problem.
• Check airflow: Place your hand near vent outlets; you should feel a steady airflow.
• Inspect for damage or debris: Keep the fan area clean and clear of dust or obstructions.
• Ensure continuous operation: Never turn off the fan, as this compromises the system’s effectiveness.
  
  

Tip: Radon fans are designed to run 24/7. If the fan fails, contact a certified professional immediately.

READ: DIY Radon Fan Replacement: A Step-By-Step Guide For Safety

3. Inspect the Piping and Seals

PVC pipes and seals carry radon gas out of your home safely. Regular inspection helps prevent leaks:

• Look for cracks, loose joints, or disconnected pipes.
• Ensure that all joints are properly sealed with primer and cement.
• Check that vent pipes lead above roof level and away from windows or air intakes.
  
  

Even small leaks can reduce system effectiveness and increase indoor radon levels.

4. Monitor the System With a Manometer

A manometer is a simple device that shows whether your system is functioning properly:

• Check that the liquid in the U-tube indicates proper suction.
  
  
• If the liquid level changes unexpectedly or shows no pressure, your system may need servicing.
  
  

Take readings regularly to ensure consistent performance.

5. Keep the Fan and Vent Area Clear

Radon fans are usually installed in basements, attics, or exterior areas. To maintain airflow:

• Keep storage items away from the fan.
  
• Ensure vent openings are not blocked by debris, leaves, or snow.
  

Avoid painting or covering any part of the vent or piping.
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6. Test Radon Levels Regularly

Even a well-maintained system needs periodic radon testing:

• Conduct a short-term radon test at least once a year.
  
• After maintenance or system repairs, run a new test to ensure radon levels remain safe.
  
• If levels rise above 4.0 pCi/L, contact a professional immediately.
  
  

Regular testing ensures your mitigation system is effectively protecting your family.

7. Know When to Call a Professional

While homeowners can perform basic inspections, some tasks require a certified radon mitigation professional:

• Replacing a fan
  
• Major pipe repairs or rerouting
  
• Installing a new system
  
• Persistent high radon levels despite a functioning system
  
  

Hiring a professional ensures the system is safe, effective, and up to code.

Final Thoughts

Maintaining your radon mitigation system is crucial for the safety of your home. By regularly inspecting your fan, pipes, and monitoring devices, keeping vent areas clear, and testing radon levels, you can ensure continuous protection for your family.
In Portland, radon levels can vary widely from home to home, making maintenance and monitoring even more important. Taking simple steps at home can prevent serious health risks and give you peace of mind.

If you’re unsure about your radon system or need professional service, the team at RADON TESTING AND MITIGATION PNW​ can help. Our certified experts ensure your home stays safe, your system runs efficiently, and your family breathes clean, healthy air.

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