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*The Angi rating for Radon Detection And Reduction companies in La Porte, IN is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

*The HomeAdvisor rating for Radon Detection And Reduction companies in La Porte, IN is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

Last update on October 23, 2026

Top-Rated Radon detection and reduction specialists in La Porte - Updated Nov 2026

Swat Group, Inc.
4.4(
152
)
Radon Gas - Abatement

Serving La Porte, IN and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"Hired for the convienience of their timely ability to install a radon system. The vent on the outside of the house is a large diameter, circular chimney that is very unsightly. Prices were a bit higher than other companies, but their ability to install quickly took precedence. In SWATs defense, I did not inform the company of my displeasure as the system was being installed as a condition of sale."
Response time1 day
Recommended by94%of homeowners
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Avatar for Chicago Crawlspace & Basement Pro's Corp
Chicago Crawlspace & Basement Pro's Corp
5.0(
7
)
Radon Gas - AbatementRadon Gas - Testing

Serving La Porte, IN and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"We chose Chicago Crawlspace because Andy was punctual, professional, well versed and provided us with a detailed quote of the services being provided. We apppreciated that the pricing given to us was broken down and each specific task was assigned a cost - as opposed to a company just giving a lump sum quote. We even knew the brand and cost of the sump pump being installed.

The crew was on time and finished on schedule. All existing debris in the crawlspace was bagged and removed from the crawlspace by the crew before they began laying the liner. One challenge we had involved our water softening system which is located in our crawlspace. Andy was very willing to work with us and did not require us to have the equipment removed before doing the work. He provided a plumber to disconnect and then reconnect the system. The softener and the salt holding tank are located beneath the opening to the crawlspace to allow for easy access. Pouring the concrete floor would result in losing a few inches of height clearance and make refilling the salt tank very inconvenient if we moved it farther away from the opening. We discussed it with Andy and he said that he would have his men dig down a few inches - at no additional charge - under the tank so that we would still be able to refill the tank fairly easily and keep it near the opening.

Overall we are very saisfied with Chicago Crawlspace and the job they did. We would definitely use them again and have no problem recommending them to others."
Before
After
Recommended by100%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

You can vent radon out of your house sometimes by simply opening a window, but it won’t remove the source, and will likely rise above recommended levels quickly. A professional will be needed to assess your home, and determine the best strategy for radon removal. Active radon sump pumps and soil depressurization systems are often used to forcefully vent the radon from your home.

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

The La Porte, IN homeowners’ guide to radon detection and reduction services

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