
Serving Carmel, IN and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
"Business owner was very informative. Helped me get a self radon test that I’m still using."





+5

*The Angi rating for Radon Detection And Reduction companies in Carmel, 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 Carmel, 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 May 14, 2025

Serving Carmel, IN and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
"Business owner was very informative. Helped me get a self radon test that I’m still using."





+5

Serving Carmel, IN and surrounding areas
Approved
In business since 2021
Free estimates
Small jobs welcome
"They were easy to deal with and installed the system exactly as they described. We have yet to test the new radon levels, but have been assured it will work."




Serving Carmel, IN and surrounding areas
Approved
In business since 1988
Free estimates
Credit card accepted
"I hired them to install a Radon Mitigation system they showed up on time and worked very well they were polite and professional and I am very happy with results"





Serving Carmel, IN and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"Amanda and Dustin were great to work with. Glad to have the radon dealt with in a quick and expeditious manner. I had a passive radon system that failed to accomplish effective radon removal and Dustin made it an â activeâ system that I am very pleased with."





+3

Serving Carmel, IN and surrounding areas
Approved
In business since 2014
Free estimates
Offers commercial services
"We had one little unanticipated issue and they handled it perfectly. He was by far the most reasonable quote I received and the quality was great. I thought he was very professional and very knowledgeable about radon. Before this experience I didn't know very much about radon now I know more about the importance of testing, and the safety of my home and family because of him."





Serving Carmel, IN and surrounding areas
In business since 2011
Free estimates
Emergency services offered
"I worked with Pam throughout the entire experience. She was wonderful. She contacted me quickly to schedule an appointment and also scheduled radon testing on my behalf. We had to reschedule due to a snow storm, but she was quick to contact me and arrange a new day. On the day of the appointment, she showed up on time. We spent a few hours at the house while she inspected it. She pointed out a few issues here and there. As soon to be first time homeowner, I really appreciated this. She sent the inspection report the following day. It included in depth details and pictures.
"
Serving Carmel, IN and surrounding areas
In business since 1988
Free estimates
Credit card accepted
"I wanted to have the fan for a Radon mitigation system installed in the attic area above my garage, but knew that access from my basement to the garage would require routing of the mitigation pipe above a dropped ceiling in the finished portion of my basement. Only two of the four companies that I'd contacted were willing to quote a garage attic fan installation, and SWAT Environmental's quoted cost was lower than that of their competitor. As a consequence, I suggested that SWAT send a representative to review my installation to ensure that the cost that they'd quoted for a garage attic fan installation wouldn't need to be adjusted. SWAT's representative, Jayme, arrived at my home at the scheduled time, reviewed the installation and agreed that a garage attic fan installation could be accomplished for the quoted price, but indicated that I'd have to call the office to schedule an appointment because his schedule (and those of other installers) was already booked. I called and was able to schedule an appointment for Jayme to perform an installation a couple of weeks later. Despite a later than expected arrival, Jayme was able to complete the majority of the installation (pipe routing, wiring and fan installation) before he had to leave. He returned to complete the installation (cover and seal the sump pump pit) about a week later when a second appointment could be scheduled. I initiated the post-mitigation Radon level test with the kit that had been left with me a week after the mitigation installation was completed and ran the test for five days. The report from the test lab indicated that the radon level in the "living space" area of my basement had dropped from a high reading of 8 pCi/L (in pre-mitigation tests) to 1.2 pCi/L and this post-mitigation value was confirmed by comparison with a Radon monitor that I'd purchased through amazon.com that indicated a "long-term average" of 1.24 pCi/L for the same five days. It's apparent that the Radon mitigation effort in my home was successful. I'd have no concerns about recommending SWAT Environmental to others for Radon mitigation."

Serving Carmel, IN and surrounding areas
In business since 2015
Credit card accepted
Riley Radon, LLC, is a brand new safety testing service in the Indianapolis area. Caleb has been in the industry for a long time and decided to go off on his own. He is able to take care of any of your testing needs. Although we specialize in Radon we can do all services. Call now for same day service!

Serving Carmel, IN and surrounding areas
In business since 2010
Free estimates
Credit card accepted
"The Rep called and was able to come early. He checked my crawlspace, tested my sump pump and reported all was fine."





+1

Serving Carmel, IN and surrounding areas
Free estimates
Emergency services offered
Warranties offered
"With the recent snow melt and the rain we are having this may be a timely recommendation. I hope you don’t have this need, but if you do I would like to recommend Master Service Company. We had at least six estimates for waterproofing our basement and although not nearly the cheapest, we were impressed by the presentation and the personnel and low key sales approach. So, we hired them! The work was done last week and again we were impressed with the crew doing the work, the care given to hold down the dust created, the quality of the materials used, and the willingness of the crew to keep us apprised of the job as it progressed. The was great care given to cleanup of what is a very messy job. We waited until the repair had been “battle tested”, (and this inclement weather has certainly accomplished that) before writing a recommendation. We could not be more pleased at this point. Again I hope you don’t have the need, but if you do give Mr. Jeff Russell at Master Service a call. Contact: Jeff Russell 317-720-3288."


From average costs to expert advice, get all the answers you need to get your job done.

The cost of a radon mitigation system in Indianapolis, IN, depends mostly on the type of system being installed. Use this guide to learn about your options.

Get clear answers on how much radon remediation costs, including average prices, key cost factors, and tips to save money on your home’s radon mitigation.

The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.

Radon is a gas that you can't see or smell and is harmful to your health. If your home has radon, you need to know who installs radon mitigation systems.

What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.

Knowing how to test for radon will keep your home free and safe from this odorless gas—you just have to decide whether to do it yourself or hire a pro.