Idaho Radon Services

Frequently asked questions about radon mitigation

radon questions

Radon questions, answered

How does a radon mitigation system work?

Radon mitigation systems are designed to reduce radon gas in a home to lower your risk of lung cancer and other diseases. There are two processes for radon mitigation: Sub-slab depressurization and sub-membrane depressurization. 

Sub-slab depressurization 

This is the most common type of radon mitigation. We create a suction pit by drilling a hole through the basement floor or slab, removing about three five-gallon buckets of soil. Then, we insert a pipe into the hole, running it through the home to an outdoor exhaust point where the gas disperses quickly. A fan is added to the pipe, creating negative pressure beneath the slab and keeping radon from entering the home.

Sub-membrane depressurization

This method is commonly used in buildings with crawlspaces. We install a vapor barrier or membrane on the crawlspace floor to stop radon from getting into the home. Then, we put in a pipe and fan to create negative pressure beneath the membrane, similar to the sub-slab depressurization method. With this system, radon is drawn out and vented outside.

What maintenance is required for radon mitigation systems?

Radon mitigation systems require very little maintenance. Here are a few maintenance tips:

  1. Occasionally, check the system's manometer to ensure the fan is running. 
  2. Pay attention to any clanking or loud whirring. Most fans last longer than our five-year warranty, but please contact us if you hear irregular noises. 
Do I need a professional to perform the maintenance on my radon mitigation system?  

Some maintenance tasks need to be performed by a professional, but many can be done by you at home. You can check the manometer, reattach it if needed, listen for irregular noises, and keep the system clear of debris. A professional will need to replace the fan, reroute pipes, and change any of the components that need to be done by a professional to maintain the warranty.

What is a manometer?

A manometer measures how much air is flowing through your radon mitigation system. It can help you know if your system is running correctly.

What do I do if the manometer shows the system isn't working?

The manometer will indicate that the fan has stopped working if the fluid levels are even. We recommend making sure the tubing is connected to the pipe and untangling any kinks. Then, check that the power is being supplied to the fan and that a breaker hasn't been flipped. If it has, simply turn the breaker back on. If you are still experiencing issues, contact your radon system installer.

Can my system tell me how much radon is in my home?

No. The radon level can only be determined by performing a radon test.

Do I need to test my home after the system has been installed? 

Yes. It is recommended to test your home one week after the installation and every two years after that.

Can I turn the radon fan off?

No. The fan must run at all times or the system will not remove radon.

How much does it cost per year to run a radon mitigation system?

The only ongoing expense of a radon mitigation system is the electricity used to power the fan. For a typical one-fan system, the cost is usually about $50–$100 per year.

Is there a warranty my radon mitigation system?

A radon system with Idaho Radon Services includes two separate warranties: 

  1. The fan has a five-year manufacturer warranty. Fan usually last 10 years or more, but if a fan we install fails within the first five years, we will replace it at no cost.
  2. We will provide you with warranty information for the rest of the system in your specific home.
If I move, will the warranty on the system transfer to the new homeowner? 

Yes! The warranty is attached to the home and system, not the homeowner. 

Should the radon system have a critter/rain/snow guard or an elbow to prevent objects from entering the pipe? 

It is preferable to have the discharge line end straight up with no elbows or screens that could restrict the flow or lessen the system's effectiveness. Radon fans are designed to function in wet conditions, so there is no need to protect them from rain or snow.

Do you have more radon questions?

Give us a call

Our team is happy to help answer any radon questions about your radon mitigation system. 

Call us today at 208-225-8500 or fill out the form below. We’re open Monday–Friday, 8 a.m.–5 p.m.

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5705 N Lilybrook Way
Boise, Idaho 83713
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