Mitigation Q&A

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Aaron Radon Mitigation is a mitigation service that provides for the installation of systems to mitigate radon gas from your home.


1. Will the system be visible?

Depending on the construction of your house, we will work with you to decide whether you want the system inside the house or outside the house. It can be either way or it can be a combination. External is generally less expensive.

2. Does it run all the time?

Yes. The system has to run 24/7 all 365 days of the year.

3. Will it be noisy? 

How the pipe is vented through or outside the house and the fan location will determine the noise level. We can review options with you.

4. How do we check to be sure the system is running?

A manometer will be located in a visible place for easy and frequent reading. Electric alarms and constant read out monitors are also available.

5. How do we check to be sure that radon is actually being mitigated?

Aaron Radon will supply a short post test to check the efficiency of the system.The EPA suggests that the post test should be within 30 days of the installation.Modifications discussed before installation may have to be considered with 5% of locations.

6. Is a mitigation system expensive?

A system can run from $950 to $2950+. An external system is generally less expensive.

7.Why don’t you put the fan in the basement?

State and Federal standards do not allow fan installation in the basement or any occupied space.

8. We can’t have radon, we live at the beach!

On average, every third house in York County has a radon concern. Sand is ground up rock. All rock has a percentage of Uranium which leads to radon. It’s easy to test for radon.

9. Will a damp basement effect the Radon Reduction System?

If the water table does not allow the fan to remove air, the system may not function properly. Your water problem will have to be corrected first.



Aaron Radon Mitigation is a mitigation service that provides for the installation of systems to mitigate radon gas from your home.


Fifty percent of the houses in Maine use an unregulated water source, a private well. The health risk from ingesting radon is minimal. Activities that release the radon into the air are a greater health risk.

Heating and agitating your well water, (showers,dishwashers,clothes washers,etc,) will release the trapped Radon.

Women spend more time with washing activities and tend to stay in the bathroom after showers when Radon would be present.

1. What is the acceptable level for Radon in water in Maine?

The State of Maine has selected 4000 pCi/L of Radon as the action level in Maine. At that level of concentration if all the Radon is released into the air it would be comparable to the ambient air outside.

2. The test said our level was 100,000, is that possible?

Yes. The comparison on a water test to an air test is 10,000 to 1. If you had 100,000pCi/L as a test result it would be roughly equal to 10pCi/L in an air test.

3. Do all wells have radon?

No. A test in the only way to find out.

4. What is this going to cost me?

Water systems are more complicated and do cost more. The average start at $4000 and go up. The radon level and the water volume deeded adds to the price.

5. Does it run all the time?

No. The system is activated by your need similar to your well pump.

6. Is it noisy?

It is not as quiet as a radon fan. The units with submersible pumps are quieter.

7. How big is the unit?

The smaller units are the size of a clothes washer.

8. We already have a filter system on our well water.

The Radon unit would be the last appliance after the water has been filtered.

9. Does the water unit need to be vented?

The radon coming out of the water unit is a health risk. The vent has to pass the roof eave and be 10 feet from any opening including the vent from your air system if you have one.

10. What about maintaince?

Water radon units need annual maintance to assure that mineral deposits are affecting the efficiency of the unit.

For more information, check out our Links page or submit your question to us via our Contact Page.