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

Advanced Environmental Services Inc
4.3(
7
)
Radon Gas - AbatementRadon Gas - Testing

Serving Onaga, KS and surrounding areas

In business since 1996

Free estimates

Emergency services offered

"We had 3 different contractors give us estimates. One didn't even come to our house, just gave us a quote over the phone. The first two both wanted to put the pipe in the basement utility room, which would have it running up the back of the house beside our deck. Roger Dahlby looked at that location, which would have the fan between and in close proximity to a propane shutoff valve and a central air conditioner. He said that that would be a code violation, which he would know since he helped write the codes. He suggested putting it in a basement closet which ran the pipe up the back of the house, out of sight. I offered that location to the other two contractors, and they refused. Roger showed up about an hour late and forgot to bring a ladder, but otherwise did a fantastic job. The work only took about 2-1/2 hours, was very clean and neat. He explained all the details of the work he did, and explained the warranty on the work clearly. The pipe in the closet is not in the way of anything, and once the clothes were put back in we can't hear the fan noise at all. The radon reading 2 days later was down to 1.3 pCi/L, well below the EPA limit of 4. He would not accept payment until proof of mitigation. We could not be happier with the work and the extra thought and care in placement. We are very impressed with Roger and his team."
Recommended by85%of homeowners
Avatar for Advanced Environmental Services, Inc.
Advanced Environmental Services, Inc.
3.9(
7
)
Radon Gas - Abatement

Serving Onaga, KS and surrounding areas

In business since 2006

Free estimates

"Roger provided an on-site inspection, gave a detailed explanation of the work that needed to be done, then stated a reasonable, guaranteed price of the project. All the workers were very courteous and did an excellent, professional (and clean) job of installation."
Painted Exterior Mount
Professional Sump Cover
Small Radon Fan
Vinyl Guttering
Upgraded fan,no extra fee

+4

Recommended by100%of homeowners
Radon Detection and Reduction FAQs, answered by experts

No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. 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 preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.

Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

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.

The Onaga, KS homeowners’ guide to radon detection and reduction services

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