How Much Does Radon Mitigation Cost? - American Radon Mitigation

How Much Does Radon Mitigation Cost?

Radon mitigation typically costs between $2000 to $2500 here in Minnesota.

Be very cautious of low-priced contractors and do your homework.   

How Much Does American Radon Mitigation Charge?

Most of our radon mitigation systems cost between 7 and 9k.

Why? Because we specialize in one thing and that is to get your radon levels as low as possible. There is no safe level of radon. It is a radioactive gas and we want to reduce your family’s risk. We are aiming to bring your levels below 1 pCi/L.

There is a lot of extra work that goes into being able to achieve this and we spend a significant of time on diagnostic testing and system design.

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Things to Consider

There are many factors that determine how much your radon mitigation cost will be. Some of those factors include:


Some cities require a permit for radon mitigation. Permits range from 25 to 150 dollars. Any additions to electrical also require a permit and a state electrical inspection.

Mitigation System Tag

Some states, including Minnesota, require a mitigation system tag. In Minnesota this tag is $75. There is currently an injunction that has this on hold in MN.

Radon Alarm

Radon alarms are required in Minnesota.  A radon alarm is an audible alarm that will alert the homeowner if the radon system stops working.


Some radon mitigation systems require an electrician to wire the radon fan. If a radon contractor says that he can wire the radon fan for you, find a new contractor! He is probably not a licensed electrician and will not pull a permit. If his work causes a fire, his insurance will not cover it.

If the radon fan is in the garage attic, we can sometimes use the outlet for the garage door opener to plug the radon fan into as long as it’s within six feet of the fan and the ceiling is not drywalled. 

Number of Suction Points

The key to getting your radon levels low, is to get suction under your entire home. This sometimes requires more than one suction point. Homes with multiple foundations, additions, and without drain tile often require multiple suction points.

Multiple Suction Points

Location of Radon Fan

The location of the radon fan has a large factor on the cost of radon mitigation. Outside systems are cheaper because there is less parts and labor. We try to avoid outside systems whenever possible because they are incredibly ugly, more susceptible to freeze-up, and have a shorter fan life.

Outside Radon Mitigation System

Crawl Spaces

A crawl space with a dirt floor can add a lot of expense to mitigating your home. Encapsulation is very time consuming. We often recommend a phased approach of mitigating the lowest level of your home along with retesting the basement and the room above the crawl space to determine if encapsulation is required. Most of the time it is not required to reduce your radon levels.

Encapsulated Crawl Space

Drain Tile

A home with drain tile usually only requires one suction point and this keeps your cost down. The downside to drain tile systems is that they tend to be very leaky and time should be taken to seal openings at the top of block walls.

Aftermarket drain tile systems are notoriously leaky because of the open gap left between the edge of the floor and the foundation wall. If the opening in not sealed, the radon fan will draw conditioned air that you are paying to heat and cool out of your home. This can also lead to back drafting of your combustion appliances. 

Aftermarket Drain Tile Sketch


Sealing is a great way to increase the efficiency and effectiveness of your radon system. It can also mean a more energy efficient fan may be used and that will save you money over the years. 

Seal Cracks and Openings

Sub-slab Material

Dense material under your home like clay or fine sand may require more than one suction point to bring down your radon levels.

Finished Basements

Finished basements limit what we can do as far as sealing cracks and openings, vent pipe routes, and suction point placement. Unfinished basements always put a smile on my face.

Post-Mitigation Radon Testing

There are a few options for post mitigation testing. 

  1. Hiring a professional to test using a Continuous Radon Monitor. This will likely cost $150 to $250.
  2. Using a short term radon test kit that you the homeowner set up and mail to the lab. We include this with every mitigation system.

How to Choose a Radon Mitigation Contractor

If I were looking for an estimate for radon mitigation, look for the following in addition to radon mitigation costs.

  1. A contractor that will come to my home to provide an estimate and explain my options.
  2. A company that has good reviews.
  3. A company that follows state and local codes to ensure my family’s safety.
  4. One that uses high-quality materials.
  5. Uses products that don’t leave my family at risk to VOC’s.
  6. One that checks for backdrafting.
  7. And most importantly a contractor that does diagnostic testing.

We will not be the right fit for everyone. We understand that if you are selling your home and are required to install a radon mitigation system that you are not looking to invest a lot of money into something you won’t benefit from. If you find yourself in this situation, we recommend taking some money off the selling price to allow the buyer the opportunity to have mitigation done the right way. 

We truly want to do our very best for every one of our customers. Your family’s health is our main concern.

Want to learn more? Click the button below to get in touch with us.

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