The Only 5-Star Radon Mitigation Company

As a locally owned and operated Radon Mitigation and Electrical Services company, the reviews we receive from our customers are very important to us. We are proud to say that nearly every review we have ever received has been 5 stars. But you don’t have to take our word for it, read some of those reviews below and check us out on all the popular online review sites. We think you’ll be impressed!

During the process of selling our home, we were surprised to receive notice on the radon testing that we would have to mitigate. Our realtor suggested Guardian, and our experience with them was one we’d highly recommend. We’ve had such bad luck with sloppy contractors over the years, but Guardian’s attention to detail is unmatched. They left my home as clean, if not cleaner, than when they arrived, and the mitigation system blends perfectly into the interior and exterior. They arrived on time, early this morning, and were completely finished before 10am. While we weren’t thrilled to have to spend the money, we’re glad we were able to work with Guardian to get what needed to be completed done.

A.S.

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Radon levels in our home were very high. My husband did a quick search on google and found Guardian. Mary Anne was able to explain the process of radon mitigation to my husband and made herself available to answer additional questions. Chris came to the house to make an assessment and the price was within the estimate Mary Anne had previously mentioned to us over the phone. If you are looking for a Radon Mitigation company, search no more, you have found the right one. They are very thorough and kind professionals.

Barbara K.

Joliet, IL

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I would not hesitate to recommend this company to address your radon needs. They were great to work with and did a fantastic job with super radon retest results.

Mary Anne communicates all of the details very clearly and in a timely manner via phone & email. She was very knowledgeable and convinced me that they could do the job with quality. All paperwork & documentation was provided immediately once available to myself, my attorney & my realtor.

Thanks to Guardian Radon Mitigation!!! You Rock!!!

Bruce D.

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I found Guardian in my search for a company to troubleshoot my existing Radon System quickly. My home that was under contract failed a radon test during inspection. When I called, I was helped by Mary Anne who went above and beyond in customer service from beginning to end. Not only did she schedule me in within a couple of days but she also assisted in having my home retested. Mike came out to my home on time as scheduled. Within 5 minutes he knew the issue with my system. Since he had the parts needed in his truck, he was able to repair my system on the same visit. I will only recommend Guardian for any radon mitigation.

Carlos O.

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This is a company that can take great pride in customer service.Mike came out and gave an estimate and was willing to answer any question that I might have.Mary Ann was very friendly and made this a very smooth process. They left the basement very clean where they did the work, nothing left to clean up after they left.I will definitely recommend this family run company to all my friends and family. I will also use them again for any other properties that we may have to use a Radon Mitigation System. Thank you again for GREAT SERVICE!!

Charissa S.

Romeoville, IL

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My search for a radon mitigation company started after I purchased an AirThings electronic radon monitor from Amazon. I was shocked to learn that my radon levels were over 17 pCi/L in the basement and over 5 pCi/L on the 2nd floor! Several times the safe limit of 4pCi/L. Upon further research, I learned that these levels were equivalent to our entire family smoking a pack of cigarettes every day! Then I hired Guardian to mitigate the problem and make the air in our home safe again. I was really pleased with the work that Chris and his team did on-site. All of the work was clean and showed a great attention to detail. Cuts were straight, pipe runs were clean and they left their work areas spotless. The downspout used for venting was color-matched to the other downspouts which makes such a difference in the appearance of the system. Chris’s team was extremely courteous and finished their work very quickly in about 3 hours. The explanation of how the system works was very thorough. The price I was quoted after the walk-thru is the price I paid when the work was done. It was a small price to pay considering the long-term health effects of radon exposure. Working with Mary Anne on the phone in advance was very helpful to understand what to expect for the install and from the system itself. I would highly recommend Guardian and will do so to any of my neighbors.

Cory D.

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We recently had a radon test done, and found out we needed a mitigation system.  After a little search time, and a recommendation from the testing company, we settled on Guardian.  What a great experience we had, the owner Chris was a real professional.  He took the time to walk us through the steps we’d need to take, and the cost/timing.  He was able to show us what the system would like from the outside of the house before it was installed.  The whole process was very smooth, and we are very happy with the system.  I highly recommend Guardian and the work they do.

Dave C.

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6/2/2019

My wife and I were in need of a radon mitigation firm to take care of our higher than allowed reading that came back on our house. The first company we contacted was Guardian and Maryanne in the office who took our call was very pleasant and knowledgeable filling us in with information for us to get started by setting up a appointment for Chris to come out and survey the house, give us an estimate, what work will be performed and any issues that might arise. When Chris came out he was very knowledgeable explained other issues having to do with radon and its impacts. We had contacted another mitigation company they wanted to know square footage of house, full basement or crawl giving a price without even looking at the house. Yes it was a bit cheaper but I was impressed with Guardian and their professionalism before the work even started. When the day came to start the job his two workers arrived just shortly before Chris. The two workers very professional showed them the basement and exterior where they described where the work was to start. Chris arrived took over and they answered any questions I had a d explained things during the performed work. They seemed to have finished in the time Chris described. Everything looked great when they finished and picked up, you couldn’t tell they were there except for the system they installed. Very happy and satisfied, Thanks Chris and Guardian.

David A

Sugar Grove, IL

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Awesome company! Mary Ann, Chris and Mike were able to answer all of my questions which truly showed they are all professionals and are looking out for their customers. Mike and his team made sure that the system was installed efficiently, properly and as inconspicuous as possible. Bottom line, glad I did some homework and went with Guardian.

Drew R

Glen Ellyn, IL

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On a high from selling my house, i was soon brought down when house failed radon test. Decided to call Guardian best decision I made. They have great service, from Mary dealing with me on the phone and walking me thru the whole process making sure I understand completely each step. Being prompt with all emails and follow ups. To Chris and the the install crew also being prompt and on TIME for install and putting pride in there work. In the words of my instructor at IBEW, looks like it was born there. Passed retest 0.3! I would highly recommend Guardian to anyone needing radon mitigation!!!

Felton J.

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I had a Radon mitigation system installed by this company and I’m very pleased with everything. Maryanne in the office is just wonderful to work with, very professional. Chris the owner did the installation along with two other gentleman.
Chris took the time to explain exactly what the system does and how they install it. They also sealed any cracks where the basement walls and floor met.
The work is top notch. They were in and out in about three hours.
I highly recommend these good people.

George R.

Chicago, IL

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Mike was thorough, courteous, and professional.  The prices were much better than competitors and the system Guardian installed perfectly blended with the trim on our house.  They’re also licensed electricians.  Highly recommended.

Ian H.

Naperville, IL

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From start to finish they were 5 ⭐️! The lady who 1st took my phone call to book the appointment was super professional, helpful, and polite. And Chris and his crew was clean, quick, and knowledgeable! Anyone who needs Radon Mitigation must go with them to get it done CORRECTLY! Our results were under a 1 when we first had a 7 before the mitigation. No worries what so ever! #HappyCustomer

Jasmine G

Plainfield, IL

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Mary Anne and Chris are outstanding to work with. They’re great about communicating, quick turnarounds, and excellent service. No one dreams of putting a radon mitigation system in their home, but they make it a smooth process and the work is excellent. Everything is explained thoroughly. I would highly recommend Guardian to anyone needing radon mitigation done.

Jason T.

Oswego, IL

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As new homeowners, we were extremely nervous after finding that the radon levels exceeded the acceptable level. After doing some research we found Guardian. They had awesome customer service and competitive pricing. The team was super responsive and did an excellent and clean job installing the mitigation system. Mike and Matt were very professional, with Mike going above and beyond what I had expected. Would HIGHLY recommend.

Jenna K.

Hanover Park, IL

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Selling a house can be stressful time and finding out that you need Radon mitigation made it even more worrisome. Our realtor recommended Guardian and we were very pleased with their services. They were prompt with their response to a request for a quote, a service date and arrival times. Most importantly retest results were fantastic with the added benefit of sharing those results with our real estate team! We highly recommend their services!

Joy R

Montgomery, IL

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Great experience! These guys are extremely professional and efficient. The system is not totally ugly like others I’ve seen. Pricing is reasonable too.

K.A

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Very professional team from the very first phone call to them leaving my home. Mary Anne calmed my nerves when speaking on the phone. She wasnt just trying to sell, you could tell she genuinely cared. Chris, the owner, came out the following business day and gave me a quote and we had the mitigation scheduled for that Friday. Greg, Tyler and Chris came and put the radon system in within 2.5 hours. I would highly recommend Guardian to anyone.

Kaitlin D.

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In the process of selling my home, an elevated radon level was detected. I called around to find the quickest and most efficient way to get the problem resolved and Guardian fit the bill. They came out to my home to check it out before quoting, then got me a quote quickly. We scheduled the service and the system was installed within a week. They handled the necessary village permits and scheduling the re-test, making it easy for me. I checked out the work after it was complete and I was impressed with how everything looked. Very well done and professional. I wouldn’t have known it was a new add-on if I hadn’t known it wasn’t there prior. Highly recommended!

Keith H.

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Higher than average radon levels in your home is never good. With all the radon mitigation companies out there, it can be very challenging knowing who to choose. I don’t normally write reviews, but I’m hoping this review helps you with your decision about choosing the best company for radon mitigation. I had a few estimates for radon mitigation and was very pleased that I hired Guardian for the job. Pricing is fair and the team is helpful and friendly. It was a very positive experience from start to finish.
I first spoke with Mary Ann who quickly responded to my email inquiry about an estimate and scheduled one right away for me. She proactively and thoroughly explained who would be coming out to the home, what to expect, and was always prompt with replies to my questions. Mike was
the gentleman who came out to estimate the project quoting a very fair price, provided good information and options, and answered all my questions and concerns. The team of Mike and Matt came out to install the radon mitigation system today and were on-time, efficient (3-hour install), personable, polite, and conscientious about clean-up. Mike even helped troubleshoot and fix one of my garage lights after the install- BONUS! I’m so glad to have found Guardian , and I would recommend them to anyone.
Thank you so much Mary Ann, Mike, and Matt for your great service!!

Lillibeth E.

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We had a Radon mitigation system installed by Guardian.  I sought 3 different estimates because that’s what they say to do.  We chose Guardian after meeting Chris the owner.  He was so knowledgable and friendly, our calls were returned within an appropriate timeframe, and gave me better options of where the somewhat intrusive system could be placed without taking up half my basement ceiling where the others didn’t.  The day of installation they showed up on time, there were 2 other men with him as he said there would be.  They were all very friendly, knowledgable and professional as well.   The system was installed without any problems and they cleaned up as he said they would.  Cost wise, they are pretty much right in the same ball park if not a little cheaper.  Chris made suggestions that could help contain the cost for my budget too.  Just an honest guy.  I would use Guardian again and would definitely recommend them in the future to my friends and family. I have since moved to a new house and used Guardian again.  Even referred them to my mom to use.  Still great service!

Lynda L.

Montgomery, IL

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These are the kind of people you want to do business with! From the first phone call with Maryann to the end of installation, everyone was courteous, kind, and knowledgeable. I called a few companies to come out to give as a quote, based on many suggestions seen from other people in my situation. Guardian happened to be my 4th call after scheduling with 3 other companies. My first encounter with Maryann caused me to cancel my other appointments. She gave me specific details in that first call, including the fact that permits would be needed prior to work being started. I had no clue that would be the case, because no one else mentioned that. She was upfront about pricing, including the cost of permits. Even though the other companies may have cost a little less, I felt like I was going with someone who is transparent and really knows what they are doing. Chris and his team were of the same caliber; friendly as can be and they got the job done seamlessly and in less time than anticipated. They explained everything and showed a real passion for their work. Best of all, our radon is gone! Thank you for all that you do!

Mandi I.

Joliet, IL

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Best home repair / maintenance experience I’ve ever had.  Chris and Mary Anne provide excellent customer service; they seem to be genuinely friendly people.  Price-wise, they came in cheaper than the other quote I got.  In addition to converting my radon mitigation system from passive to active, they also encapsulated my crawl space for a very reasonable fee.  I was aware of some things that could come up during installation that would increase the cost, none of which occurred.  Chris could have claimed that the complications existed and I would have been none the wiser. This demonstrates the honesty by which Chris conducts business.  I also bounced a basic electrical question off of him, which he was happy to answer.  His desire to ensure customer satisfaction is clearly exhibited with every action he takes.  I highly recommend Guardian for your radon and electrical needs.

Mark S.

Montgomery, IL

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I cannot say thank you enough to Guardian Radon Mitigation! We were extremely impressed with their professionalism from the moment I first call to the day our system was installed! Chris came out and explained everything thoroughly and quoted us on a new system, within a week it was installed and working! After talking with friends the other day they too mentioned what a wonderful company Guardian is to deal with. There business practice if fantastic and I look forward to recommending them in the future.

Tip.. I was concerned about the new color of our system on the outside of our home and they did an exact match that looks identical and blends extremely well!

Mary C.

Oswego, IL

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Great results and great service. They had to come back to address slightly elevated levels and went above and beyond to do so.Great results and great service. They had to come back to address slightly elevated levels and went above and beyond to do so.

Matt M.

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Chris and his team were great! Mary Ann was great to talk to and help set up my appointments. They were on time, friendly, fast and very efficient. The works looks great and I couldn’t be happier with having all my questions answered. An estimate and the complete job all within a week! Thanks Guardian

Michelle D.

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Excellent Service – The team was on time, professional and courteous. A job well done.

Michelle M.

Naperville, IL

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I’m a Realtor and broker owner of MODE 1 Real Estate. I have referred my clients to Guardian for years and just last year, decided to install a mitigation system in my own home. 1. I recommend to every homeowner to install a mitigation system regardless if you test or not.
2. Peace of mind- you can feel at ease knowing you’ve lessened a proven carcinogenic element from your home.
3. Make life easier- when you go to sell there’s a myriad of things to worry about and prep for. Make the radon test one less thing to stress about.
4. Quality- using Guardian was a no brainer for me. I know I’m receiving reliable, knowledgeable, and dependable services as well as taking care of my clients when we use Guardian for Radon and Electrical services.

Michelle S.

Oswego, IL

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First and foremost, THANKS!!!! What a great company. found out from neighbors moving, that they had high radon levels in the house. So we decided to test. Initially came back at 14.8. Holy Cow! Re-tested and came back little lower but not much. I have passed the Guardian truck many times on my way to work. Not thinking I would ever need them. But, thanks to them and their great workers and office staff, we have re-tested and now are below .4!!!!! Wow and thanks to a great company. I would recommend them to any and all who need mitigation….. Thanks again

Nagy M.

Yorkville, IL

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Just had them do our radon mitigation and would highly recommend them.  The were everything you need – priced right, professional, prompt and thorough.   The worked with us to get it done quickly.  And we passed the retest easily.

Nick D.

Plainfield, IL

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Excellent and personalized service. We had a complicated area to treat; however with Guardian’s innovative system installation, we passed our retest with flying colors! The entire Guardian team was prompt, thorough, straightforward, and professional. Exterior system components were placed to essentially blend in with gutter downspouts. No eyesores!

Nicole G.

Aurora, IL

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I just wanted to update everybody on my retest after Guardian put the mitigation system in.
The house before the mitigation system tested at 29.8 pCi/ L… And after the system, it tested at .3 pCi/L.
(Anything over 4.0 pCi/L needs to be fixed)! Thanks to Guardian were not surrounded by poison anymore!!
We are extremely happy with their service.

Olivia P.

Lemont, IL

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My experience with Guardian Radon Mitigation was a very positive one.

We were in the process of trying to purchase a home and during the inspection elevated Radon levels were found. I asked around to some of my trusted sources I was referred to Guardian. After speaking with Mary Anne I felt very comfortable that this was the correct company for us. She took care of all the details for me; setting up the time with the current home owners to get the estimate done, forwarding all the documents to everyone that needed them (realtors, lawyers, both sets of home owners), contacting me after we closed on the house to set up the appointment, and scheduling a third party company to come and do the retest after the system was installed. With everything else that was stressful with trying to close on the house, she was a huge help.

The install process went very smoothly. They were prompt and professional and explained the whole process to me as they went. They took the time to make sure the system was in a spot that was out of the way and looked as attractively as it could. After they were finished, they left the area cleaner than when they arrived.

I would definitely recommend using Guardian. If you do, a small tip that may help you out; Pay attention to what shirts Chris and Bob are wearing, unless they were standing next to each other, I was having a tough time keeping track of which one was which.

Peter M.

Aurora, IL

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“Thank you very much for the outstanding job and service!”

Raleigh J.

Plainfield, IL

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Excellent experience with this company, specifically Maryann and Chris. They were professional, on time, clean, knowledgeable and coordinated SO much for our schedules. Answered all my questions about Radon, etc. I’d recommend them to family.

Sarah G.

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Chris came to our house on short notice, and patiently waited for me (I was delayed by 20 minutes).  I was embarrassed for my tardiness but was still greeted with a large smile, which made me at ease right away.  Chris did a very fair estimate, and was at my house 2 days later to install the system and put me at ease.  Great service, great attitudes, great communication, great price.  I highly recommend this company.

Shane S.

Joliet, IL

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Chris and Mary Anne with Guardian were fantastic.  I would and do recommend them to anyone who is going to be finishing their basement to get the radon out.  The customer service was second to none.  Great people, work, and company.  Thank you for a fresh basement!

Tim E.

Naperville, IL

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I want to thank and recommend the Guardian Radon Migration & Electrical team. In selling our home is was discovered our builder only installed part of the radon migration system. I called and spoke with Mary Anne who it only explained everything, but she saw me through the entire process start to finish. They kept me informed and did what they said they would do. They even pulled my permit. Chris came out gave us the estimate and told us of additional things that needed to be done. Such as electric had to be added in my attic. They did that too. They scheduled the job. They showed up on time and did the work in a fast and efficient manner. They were very professional and neat. They even set up the actual radon test for me with another company. Bonus! I did not have to worry or do any of that. So if you are in need of a Radon Migration System, I highly recommend this company.

Tina K.

Oswego, IL

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We decided to test our house for Radon, and found our living space to be between 4 and 5 pCi/L. The estimate from Guardian was free, quick, easy, and the quote was competitive. The installation was professional, clean, and quick. In 24 hours our readings dropped to extremely safe levels of 0.5pCi/L. Thank you Gaurdian, we will definitely recommend your services.

Tom P.

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I highly recommend Guardian Radon Mitigation and Electrical Services. We scheduled to have a mitigation system installed with the purchase of our new home. Levels were slightly elevated, but after reading about the potential for long-term effects, we didn’t want to risk it with a young family.

Everything went so smooth – really all we had to do was schedule the appointment! Everyone on the Guardian team is friendly, courteous and knowledgeable. They will clear up any questions you may have and guide you on the best ways to test radon levels going forward. Highly recommended.

Val C.

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I am in need of radon mitigation at my house. I was not certain exactly how to go about even finding someone. I came upon Guardian Radon and discovered they have a Facebook site. Within minutes of inquiring, they were honest and told me they do not service my area. However, they were quick to point me in the right location of how to find a licensed professional. I greatly appreciated their honesty and assistance!

Valerie V

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Guardian Radon Mitigation & Electrical Services
451 Burr Oak Drive
Oswego, IL 60543